Consulta: subjectFacets:"Phylogeography"
Registros recuperados: 43
Data/hora: 03/06/2024 19:02:52

Demographic history of wood stork (Mycteria americana) Brazilian Pantanal colonies revealed by mitochondrial DNA analysis
Provedor de dados: 74
Autores: Lopes,Iara Freitas; Brito,Reinaldo Alves de; Henrique-Silva,Flávio; Del Lama,Silvia Nassif.
We used mitochondrial DNA (mtDNA) sequences to investigate the demographic history of the wood stork (Mycteria americana) populations in the Brazilian Pantanal. Sequences of 390/460 bp fragment of the mtDNA control region were analyzed in 62 wood stork specimens from 8 colonies using neutrality tests, phylogeographic, and coalescent analyses. Population expansion was supported by the significantly negative values of Tajima’s (D = -2.071) and Fu’s (Fs = -14.544) statistics and the unimodal pattern of mismatch distribution. Nested clade analyses indicated a historic range expansion event and recurrent gene flow that was restricted by isolation by distance as explanations for the haplotype distribution among the sampled colonies. High genetic diversity and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Wood stork; Mycteria americana; Pantanal; Mitochondrial DNA; Phylogeography.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572006000200008

Molecular evidence for a recent demographic expansion in the puma (Puma concolor) (Mammalia, Felidae)
Provedor de dados: 74
Autores: Matte,Eunice M.; Castilho,Camila S.; Miotto,Renata A.; Sana,Denis A.; Johnson,Warren E.; O'Brien,Stephen J.; Freitas,Thales R. O. de; Eizirik,Eduardo.
The puma is an iconic predator that ranges throughout the Americas, occupying diverse habitats. Previous phylogeographic analyses have revealed that it exhibits moderate levels of genetic structure across its range, with few of the classically recognized subspecies being supported as distinct demographic units. Moreover, most of the species' molecular diversity was found to be in South America. To further investigate the phylogeographic structure and demographic history of pumas we analyzed mtDNA sequences from 186 individuals sampled throughout their range, with emphasis on South America. Our objectives were to refine the phylogeographic assessment within South America and to investigate the demographic history of pumas using a coalescent approach. Our...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Conservation genetics; Mammals; Mitochondrial DNA; Molecular time estimate; Phylogeography.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572013000400018

Evolutionary history of  Phakopsora pachyrhizi  (the Asian soybean rust) in Brazil based on nucleotide sequences of the internal transcribed spacer region of the nuclear ribosomal DNA
Provedor de dados: 74
Autores: Freire,Maíra C. M.; Oliveira,Luiz O. de; Almeida,Álvaro M. R. de; Schuster,Ivan; Moreira,Maurilio A.; Liebenberg,Merion M.; Mienie,Charlotte M. S.
Phakopsora pachyrhizi  has dispersed globally and brought severe economic losses to soybean growers. The fungus has been established in Brazil since 2002 and is found nationwide. To gather information on the temporal and spatial patterns of genetic variation in  P. pachyrhizi , we sequenced the nuclear internal transcribed spacer regions (ITS1 and ITS2). Total genomic DNA was extracted using either lyophilized urediniospores or lesions removed from infected leaves sampled from 26 soybean fields in Brazil and one field in South Africa. Cloning prior to sequencing was necessary because direct sequencing of PCR amplicons gave partially unreadable electrophoretograms with peak displacements suggestive of multiple sequences with length polymorphism. Sequences...
Palavras-chave: Phakopsora pachyrhizi; Diversity; Internal transcribed spacer; Asian soybean rust; Phylogeography.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572008000500020

Genetic and morphometric differences between yellowtail snapper (Ocyurus chrysurus, Lutjanidae) populations of the tropical West Atlantic
Provedor de dados: 74
Autores: Vasconcellos,Anderson V.; Vianna,Paulo; Paiva,Paulo C.; Schama,Renata; Solé-Cava,Antonio.
Populations of Ocyurus chrysurus were compared genetically and morphometrically along the West Atlantic coast to test the null hypothesis of population homogeneity in the area. Brazilian populations were found to be differentiated in shape (canonical variates analysis; F[48,515] = 10.84, p &lt; 0.0001). Analyses of mitochondrial DNA sequences (663 bp of the control region) did not show any differences between Brazilian populations but could detect differences between Brazilian and Caribbean (Belize) populations. The samples from Pernambuco differed significantly from the other Brazilian populations in allozyme frequencies (11 loci; F ST = 0.167; p &lt; 0.05), but this may have resulted from the small number of samples analysed for that population. Sequence...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: MtDNA; Allozymes; Morphometry; Fisheries; Phylogeography.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572008000200026

Phylogeography and RAPD-PCR variation in Hoplias malabaricus (Bloch, 1794) (Pisces, Teleostei) in southeastern Brazil
Provedor de dados: 74
Autores: Dergam,Jorge A.; Paiva,Samuel R.; Schaeffer,Carlos E.; Godinho,Alexandre L.; Vieira,Fabio.
In the Rio Doce basin of southeastern Brazil, the freshwater fish Hoplias malabaricus (trahira) is a widespread predatory characin and one of the few resilient native fishes in a highly impacted lake system. In order to test for genetic differentiation in populations within this basin and for biogeographic relationships among populations of this species in other basins, a study was conducted using RAPD-PCR analysis of Rio Doce samples (N = 63) and phylogeographic analyses with mitochondrial DNA (mtDNA) haplotypes, including the Rio Grande and Macacu river basins. In the Rio Doce basin, the patterns of genetic similarity of RAPD-PCR markers (individual fingerprinting and Nei’s genetic distance) suggest the existence of two genetically different groups, one...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: RAPD; SSCP; MtDNA; Phylogeography; Hoplias malabaricus; Conservation genetics.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572002000400005

Mitochondrial DNA phylogeography of Brazilian populations of Drosophila buzzatii
Provedor de dados: 74
Autores: Brito,Reinaldo A. de; Manfrin,Maura H.; Sene,Fabio M.
The Argentinean Chaco region has been considered the center of origin of Drosophila buzzatii in South America because it contains most of the chromosomal polymorphism detected in natural populations. Two hypotheses have been put forward to explain the distribution of D. buzzatii in Brazil, one proposing that it has only recently passively colonized Brazil via human dispersal and the other suggesting that D. buzzatii has actively migrated to Brazil some time ago. Data from chromosomal inversions support recent colonization, whereas data from allozymes and mtDNA variation indicate that D. buzzatii has been in Brazil longer, favoring an active dispersal hypothesis. In our present work we analyzed data on 56 South American flies, mostly from Brazil, sequenced...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Drosophila buzzatii; Population structure; Mitochondrial DNA; Phylogeography; Brazil; Climatic cycles.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572002000200009

Population structure of the Monocelis lineata (Proseriata, Monocelididae) species complex assessed by phylogenetic analysis of the mitochondrial Cytochrome c Oxidase subunit I (COI) gene
Provedor de dados: 74
Autores: Sanna,Daria; Lai,Tiziana; Francalacci,Paolo; Curini-Galletti,Marco; Casu,Marco.
Monocelis lineata consists of a complex of sibling species, widespread in the Mediterranean and Atlantic Ocean. Previous genetic analysis placed in evidence at least four sibling species. Nevertheless, this research was not conclusive enough to fully resolve the complex or to infer the phylogeny/phylogeography of the group. We designed specific primers aiming at obtaining partial sequences of the mtDNA gene Cytochrome c Oxidase subunit I (COI) of M. lineata, and have identified 25 different haplotypes in 32 analyzed individuals. The dendrogram generated by Neighbor-Joining analysis confirmed the differentiation between Atlantic and Mediterranean siblings, as well as the occurrence of at least two Mediterranean sibling species. Thus validated, the method...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Microturbellaria; Sequencing; Sibling species; Phylogeography; Phylogeny.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572009000400031

Testing the Rio Doce as a riverine barrier in shaping the Atlantic rainforest population divergence in the rodent Akodon cursor
Provedor de dados: 74
Autores: Colombi,Victor Hugo; Lopes,Silvia Ramira; Fagundes,Valéria.
Akodon cursor occurs in dense rainforest from northern (8º S) to southern (26º S) states along the Atlantic coast of Brazil. Previous karyological and molecular data revealed two major clades, one including northern (8-15º S) and the other southern (19-26º S) populations. The center of geographic distribution (15-20º S), which included the state of Espírito Santo, was identified as a potential vicariance region. Since river barriers are among the most discussed models in the study of Neotropical diversification, we examined whether the Rio Doce (19º S) plays an important role in shaping the population genetic divergence of A. cursor by including samples from Espírito Santo in the analysis. Our results showed that the northern-southern division region in...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Akodontini; Atlantic Forest; Cytochrome b; Gene flow; Phylogeography; Rodentia.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572010000400029

The use and limits of ITS data in the analysis of intraspecific variation in Passiflora L. (Passifloraceae)
Provedor de dados: 74
Autores: Mäder,Geraldo; Zamberlan,Priscilla M.; Fagundes,Nelson J.R.; Magnus,Tielli; Salzano,Francisco M.; Bonatto,Sandro L.; Freitas,Loreta B.
The discovery and characterization of informative intraspecific genetic markers is fundamental for evolutionary and conservation genetics studies. Here, we used nuclear ribosomal ITS sequences to access intraspecific genetic diversity in 23 species of the genus Passiflora L. Some degree of variation was detected in 21 of these. The Passiflora and Decaloba (DC.) Rchb. subgenera showed significant differences in the sizes of the two ITS regions and in GC content, which can be related to reproductive characteristics of species in these subgenera. Furthermore, clear geographical patterns in the spatial distribution of sequence types were identified in six species. The results indicate that ITS may be a useful tool for the evaluation of intraspecific genetic...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Genetic diversity; Intraspecific variability; ITS; Passiflora; Phylogeography.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572010000100018

Population genetic analysis of Caiman crocodilus (Linnaeus, 1758) from South America
Provedor de dados: 74
Autores: Vasconcelos,William R.; Hrbek,Tomas; Silveira,Ronis da; Thoisy,Benoit de; Marioni,Boris; Farias,Izeni P.
The genetic structure of Caiman crocodilus was investigated using a 1085 bp mtDNA fragment of the cytochrome b gene. Inferences were based on 125 individuals from nine localities in Peru, Brazil and French Guiana. With the exception of Mamirauá Lake, Anavilhanas Archipelago and the Tapará Community which show a signal of demographic expansion, the sampled localities are in a mutation-drift genetic equilibrium. Divergence between the Amazon basin and extra-Amazon basin localities is significant; however, inference from Nested Clade Analysis cannot distinguish between continuous range expansion, long distance colonization or past fragmentation; however, past fragmentation is unlikely due to low number of mutational steps separating these two regions. The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Genetic structure; Phylogeography; Genetic diversity; Demographic expansion; Cytochrome b; Caiman crocodilus.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572006000200006

Phylogenetic relationships among Capuchin (Cebidae, Platyrrhini) lineages: An old event of sympatry explains the current distribution of Cebus and Sapajus
Provedor de dados: 74
Autores: Martins-Junior,Antonio Marcio Gomes; Carneiro,Jeferson; Sampaio,Iracilda; Ferrari,Stephen F.; Schneider,Horacio.
Abstract Capuchin monkeys are currently represented by four species of Cebus and eight of Sapajus. This group is taxonomically complex and several questions still need to be clarified. In the current study, using mtDNA markers and a larger sample representation than in previous studies, we seek to understand the phylogenetic relationships among the capuchin lineages and their historical biogeography. All 12 species of capuchins were analyzed for the mitochondrial Control Region and Cytochrome b to test two biogeographical hypotheses: “Reinvasion of the Amazon (ROA)” and “Sympatric Evolution (SEV)”. The phylogenetic relationships among distinct lineages within genera is consistent with an evolutionary diversification pattern probably resulting from an...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Capuchins; Phylogeography; Phylogeny; Taxonomy; Biogeography.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572018000400699

Phylogeographic analyses of the pampas cat (Leopardus colocola; Carnivora, Felidae) reveal a complex demographic history
Provedor de dados: 74
Autores: da Silva Santos,Anelisie; Trigo,Tatiane Campos; de Oliveira,Tadeu Gomes; Silveira,Leandro; Eizirik,Eduardo.
Abstract The pampas cat is a small felid that occurs in open habitats throughout much of South America. Previous studies have revealed intriguing patterns of morphological differentiation and genetic structure among its populations, as well as molecular evidence for hybridization with the closely related L. tigrinus. Here we report phylogeographic analyses encompassing most of its distribution (focusing particularly on Brazilian specimens, which had been poorly sampled in previous studies), using a novel dataset comprising 2,143 bp of the mitogenome, along with previously reported mtDNA sequences. Our data revealed strong population strutucture and supported a west-to-east colonization process in this species’ history. We detected two population expansion...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Phylogeography; Population genetics; Mitochondrial DNA; Conservation genetics; Historical demography.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572018000200273

Genetic variability in mitochondrial and nuclear genes of Larus dominicanus (Charadriiformes, Laridae) from the Brazilian coast
Provedor de dados: 74
Autores: Dantas,Gisele Pires de Mendonça; Meyer,Diogo; Godinho,Raquel; Ferrand,Nuno; Morgante,João Stenghel.
Several phylogeographic studies of seabirds have documented low genetic diversity that has been attributed to bottleneck events or individual capacity for dispersal. Few studies have been done in seabirds on the Brazilian coast and all have shown low genetic differentiation on a wide geographic scale. The Kelp Gull is a common species with a wide distribution in the Southern Hemisphere. In this study, we used mitochondrial and nuclear markers to examine the genetic variability of Kelp Gull populations on the Brazilian coast and compared this variability with that of sub-Antarctic island populations of this species. Kelp Gulls showed extremely low genetic variability for mitochondrial markers (cytb and ATPase) and high diversity for a nuclear locus (intron...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cytb; FIB7 intron; Phylogeography; Recent origin; Selective sweep.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572012000500023

Genetic structure of the snakehead murrel, Channa striata (channidae) based on the cytochrome c oxidase subunit I gene: influence of historical and geomorphological factors
Provedor de dados: 74
Autores: Jamaluddin,Jamsari Amirul Firdaus; Pau,Tan Min; Siti-Azizah,Mohd Nor.
Nucleotide sequences of a partial cytochrome c oxidase subunit I gene were used to assess the manner in which historical processes and geomorphological effects may have influenced genetic structuring and phylogeographic patterns in Channa striata. Assaying was based on individuals from twelve populations in four river systems, which were separated into two regions, the eastern and western, of the biodiversely rich state of Perak in central Peninsular Malaysia. In 238 specimens, a total of 368-bp sequences with ten polymorphic sites and eleven unique haplotypes were detected. Data on all the twelve populations revealed incomplete divergence due to past historical coalescence and the short period of separation. Nevertheless, SAMOVA and F ST revealed...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Channa striata; MtDNA COI; Phylogeography; Population structure.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572011000100026

Molecular phylogeny and classification of the chemosymbiotic bivalve family Lucinidae (Mollusca: Bivalvia)
Provedor de dados: 5
Autores: Taylor, John D.; Glover, Emily A.; Smith, Lisa; Dyal, Patricia; Williams, Suzanne T.
A new molecular phylogeny of the chemosymbiotic bivalve family Lucinidae is presented. Using sequences from the nuclear 18S and 28S rRNA genes and the mitochondrial gene cytochrome b, 105 specimens were analysed representing 87 separate species classified into 47 genera. Samples were collected from a wide range of habitats including mangroves, seagrass beds, shallow sands, offshore muds, and hydrocarbon seeps at depths ranging from the intertidal to over 2000 m. A chronogram, derived from the combined molecular tree, was calibrated using ten lucinid fossils. The trees show five well-supported clades and two single branches of Fimbria fimbriata (Linnaeus, 1758) and Monitilora ramsayi (Smith, 1885). A new classification of Lucinidae is proposed with seven...
Tipo: Text
Palavras-chave: Chemosymbiosis; Classification; Fossil record; Habitats; Phylogeography.
Ano: 2011
URL: https://archimer.ifremer.fr/doc/00467/57833/60131.pdf

Population structure enhances perspectives on regional management of the western Indian Ocean green turtle
Provedor de dados: 5
Autores: Bourjea, Jerome; Mortimer, Jeanne A.; Garnier, Julie; Okemwa, Gladys; Godley, Brendan J.; Hughes, George; Dalleau, Mayeul; Jean, Claire; Ciccione, Stephane; Muths, Delphine.
To refine our understanding of the spatial structure of the green turtle (Chelonia mydas) populations in the South West Indian Ocean (SWIO), we analysed patterns of mitochondrial DNA (396 base pairs control region fragment) variation among 171 samples collected at five distinct locations (Kenya, Northern Mozambique, and three locations in the Republic of Seychelles: the Granitic, Amirantes, and Farquhar groups) and compared them to genetic data (n = 288), previously collected from 10 southern locations in the SWIO. We also analysed post-nesting satellite tracks (n = 4) from green turtles nesting in the Amirantes group. Pairwise comparisons of haplotype frequencies showed significant genetic differentiation amongst rookeries and suggest that the SWIO hosts...
Tipo: Text
Palavras-chave: Indian Ocean; MtDNA; Satellite tracking; Phylogeography; Management unit; Chelonia mydas.
Ano: 2015
URL: https://archimer.ifremer.fr/doc/00266/37732/36062.pdf

Trans-Atlantic distribution of a mangrove oyster species revealed by 16S mtDNA and karyological analyses
Provedor de dados: 5
Autores: Lapegue, Sylvie; Boutet, Isabelle; Leitao, Alexandra; Heurtebise, Serge; Garcia, P; Thiriot Quievreux, C; Boudry, Pierre.
Three species of man.-rove oysters, Crassostrea rhizophorae, C. brasiliana, and C. gasar, have been described along the Atlantic shores of South America and Africa. Because the distribution of these molluscs is of great biological and commercial interest, their taxonomy and distribution deserve further clarification. Therefore, 15 populations were sampled from both continents. Their 16S mitochondrial polymorphism was studied by sequencing and PCR-RFLP analysis. Two haplotypes were identified. Haplotype a was the only one observed in Africa, but it was also observed in South America together with haplotype b. Because C. gasar is the only mangrove oyster identified on the west coast of Africa, haplotype a was attributed to this species, which has thus been...
Tipo: Text
Palavras-chave: Mangrove oyster; Crassostrea gasar; Karyotype; Phylogeography; 16S mitochondrial DNA.
Ano: 2002
URL: http://archimer.ifremer.fr/doc/2002/publication-2790.pdf

Molecular evolution and phylogeography of infectious hematopoietic necrosis virus with a focus on its presence in France over the last 30 years
Provedor de dados: 5
Autores: Bellec, Laure; Louboutin, Lenaig; Cabon, Joelle; Castric, Jeanne; Cozien, Joelle; Thiery, Richard; Morin, Thierry.
Infectious hematopoietic necrosis virus (IHNV) is among the most important pathogens affecting the salmonid industry. Here, we investigated the molecular evolution and circulation of isolates from 11 countries or regions all over the world, with a special focus on the epidemiological situation in France. The phylogeography, time to the most recent common ancestor (TMRCA) and nucleotide substitution rate were studied using 118 full-length glycoprotein gene sequences isolated from 9 countries (5 genogroups) over a period of 47 years. The TMRCA dates back to 1943, with the L genogroup identified as the likely root (67 %), which is consistent with the first report of this pathogen in the USA. A Bayesian inference approach was applied to the partial...
Tipo: Text
Palavras-chave: Infectious hematopoietic necrosis virus; Evolutionary dynamics; Dates of divergence; Phylogeography; Molecular epidemiology.
Ano: 2017
URL: http://archimer.ifremer.fr/doc/00399/51015/51832.pdf

New insights about the introduction of the Portuguese oyster, Crassostrea angulata, into the North East Atlantic from Asia based on a highly polymorphic mitochondrial region
Provedor de dados: 5
Autores: Grade, Ana; Chairi, Hicham; Lallias, Delphine; Power, Deborah M.; Ruano, Francisco; Leitao, Alexandra; Drago, Teresa; King, Jonathan W.; Boudry, Pierre; Batista, Frederico M.
It is commonly presumed that the Portuguese oyster Crassostrea angulata was introduced into the North East (NE) Atlantic from Asia. The analysis of the nucleotide sequence of a highly polymorphic non-coding mitochondrial region (major noncoding region - MNR) of C. angulata samples collected in Europe (Portugal), Africa (Morocco) and Asia (Shantou and Taiwan) provided new insight into the introduction of this species into the NE Atlantic. Sixty haplotypes and a nucleotide diversity of 0.0077 were observed in 130 analyzed sequences. Higher nucleotide diversity levels were observed in NE Atlantic sites than in Asian sites and significant genetic differentiation was found between the two. Our results suggest that C. angulata might have been introduced to the...
Tipo: Text
Palavras-chave: Crassostrea angulata; Phylogeography; Genetic signature; Biological invasions.
Ano: 2016
URL: https://archimer.ifremer.fr/doc/00371/48200/48316.pdf

Sharp genetic break between Atlantic and English Channel populations of the polychaete Pectinaria koreni, along the North coast of France
Provedor de dados: 5
Autores: Jolly, Mt; Jollivet, D; Gentil, F; Thiebaut, E; Viard, F.
This study uses enzymatic and mitochondrial genes to infer the relative importance of historical processes and contemporary hydrodynamic features on the observed patterns of genetic structure in subdivided populations of Pectinaria koreni (Polychaeta: Pectinariidae) along the coasts of Brittany and the English Channel. Nucleotide sequence variation of a 603-bp fragment of the mtDNA cytochrome oxidase subunit I gene revealed a surprisingly deep phylogeographic break of about 16% divergence separating the Brittany and Channel populations, which coincides with a biogeographic boundary along the western coast of Brittany. Deep sequence divergence with fixed haplotype differences and the inversion of allele frequencies at two enzyme loci suggests the occurrence...
Tipo: Text
Palavras-chave: Phylogeography; Allozymes; MtDNA; Parapatric boundary; Cryptic species.
Ano: 2005
URL: https://archimer.ifremer.fr/doc/00301/41250/40433.pdf

Biogeographical distribution of Rimicaris exoculata resident gut epibiont communities along the Mid-Atlantic Ridge hydrothermal vent sites
Provedor de dados: 5
Autores: Durand, Lucile; Roumagnac, Marie; Cueff-gauchard, Valerie; Jan, Cyrielle; Guri, Mathieu; Tessier, Claire; Haond, Marine; Crassous, Philippe; Zbinden, Magali; Arnaud-haond, Sophie; Cambon-bonavita, Marie-anne.
Rimicaris exoculata is a deep-sea hydrothermal vent shrimp which enlarged gill chamber houses a complex trophic epibiotic community. Its gut harbours an autochthonous and distinct microbial community. This species dominates hydrothermal ecosystems megafauna along the Mid-Atlantic Ridge, regardless of contrasted geochemical conditions prevailing in them. Here, the resident gut epibiont community at four contrasted hydrothermal vent sites (Rainbow/TAG/Logatchev/Ashadze) was analysed and compiled with previous data to evaluate the possible influence of site location, using 16S rRNA surveys and microscopic observations (TEM, SEM and FISH analyses). Filamentous epibionts inserted between the epithelial cells microvilli were observed on all examined samples....
Tipo: Text
Palavras-chave: Epibiont; Extreme environments; Network analyses; Phylogeography.
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00288/39890/38443.pdf

Bluetongue virus spread in Europe is a consequence of climatic, landscape and vertebrate host factors as revealed by phylogeographic inference
Provedor de dados: 5
Autores: Jacquot, Maude; Nomikou, Kyriaki; Palmarini, Massimo; Mertens, Peter; Biek, Roman.
Spatio-temporal patterns of the spread of infectious diseases are commonly driven by environmental and ecological factors. This is particularly true for vector-borne diseases because vector populations can be strongly affected by host distribution as well as by climatic and landscape variables. Here, we aim to identify environmental drivers for bluetongue virus (BTV), the causative agent of a major vector-borne disease of ruminants that has emerged multiple times in Europe in recent decades. In order to determine the importance of climatic, landscape and host-related factors affecting BTV diffusion across Europe, we fitted different phylogeographic models to a dataset of 113 time-stamped and geo-referenced BTV genomes, representing multiple strains and...
Tipo: Text
Palavras-chave: Bluetongue; Phylogeography; Viral diffusion; Environmental drivers; Predictor testing; Vector-borne pathogen.
Ano: 2017
URL: https://archimer.ifremer.fr/doc/00667/77880/80026.pdf

Genetic diversity and inter-specific relations of western Mediterranean relic Abies taxa as compared to the Iberian A. alba
Provedor de dados: 5
Autores: Dering, Monika; Sekiewicz, Katarzyna; Boratynska, Krystyna; Litkowiec, Monika; Iszkulo, Gregorz; Romo, Angel; Boratynski, Adam.
Several Abies species are currently present in the Mediterranean region and most of them are endemic taxa and tertiary relicts. Using six nuclear microsatellites, we studied the genetic structure and interspecific relationships among West Mediterranean firs, A. pinsapo (Spain), A. maroccana and A. tazaotana (Morocco). Based on the hypothesis that A. pinsapo could historically exchange genes with A. alba growing in the Pyrenees via secondary contact, we investigated the level of genetic admixture between these species using a Bayesian approach. The studied populations showed moderate genetic diversity (mean H-E=0.598) and a high level of genetic differentiation (F-ST=0.225) that was especially pronounced between A. alba and the African firs. All populations...
Tipo: Text
Palavras-chave: A. pinsapo; A. alba; Genetic diversity; Phylogeography; Gibraltar Strait; West Mediterranean firs.
Ano: 2014
URL: https://archimer.ifremer.fr/doc/00291/40224/82999.pdf

Maintenance of genetic differentiation across a transition zone in the sea: discordance between nuclear and cytoplasmic markers
Provedor de dados: 5
Autores: Lemaire, Christophe; Versini, J; Bonhomme, Francois.
To investigate the origin and maintenance of the genetic discontinuity between Atlantic and Mediterranean populations of the common sea bass (Dicentrarchus labrax) we analysed the genetic variation at a fragment of mitochondrial cytochrome b sequence for 18 population samples. The result were also compared with new or previously published microsatellite data. Seven mitochondrial haplotypes and an average nucleotidic divergence of 0.02 between Atlantic and Mediterranean populations that matches a Pleistocene allopatric isolation were found. The frequency variation at the cytochrome b locus was many times greater between Atlantic and Mediterranean populations ((&amp;#952;) over cap (C) = 0.67) than at microsatellite loci ((&amp;#952;) over cap (N) = 0.02)....
Tipo: Text
Palavras-chave: Reproductive isolation; Phylogeography; MtDNA; Microsatellites; Genetic transitions.
Ano: 2005
URL: http://archimer.ifremer.fr/doc/2005/publication-776.pdf

Phylogeography of mangrove oysters from the Southern Atlantic ocean : Crassostrea gasar and Crassostre rhizophorae
Provedor de dados: 5
Autores: Lapegue, Sylvie; Boutet, Isabelle; Leitao, Alexandra; Thiriot-quievreux, Catherine; Heurtebise, Serge; Garcia, P.; Boudry, Pierre.
Mangrove oysters encompass several species and their taxomony is unclear. Among then, Crassostrea rhizophorae has been described along the Central and South American Atlantic coasts and Crassostrea gasar along African Atlantic coasts. Most taxonomic studies have so far been based on morphological criteria which are particularly susceptible to plasticity and new insight can be provided by molecular markers. The present work aims to provide information on the phylogeography of these two taxa.
Tipo: Text
Palavras-chave: Genetic; Phylogeography; Crassostrea rhizophorae; Crassostrea gasar; Mangrove oysters.
Ano: 2000
URL: http://archimer.ifremer.fr/doc/2000/acte-3496.pdf

Mitochondrial and nuclear DNA phylogeography of Crassostrea angulata, the Portuguese oyster endangered in Europe
Provedor de dados: 5
Autores: Huvet, Arnaud; Lapegue, Sylvie; Magoulas, A; Boudry, Pierre.
The respective status of the Portuguese oyster, Crassostrea angulata, and the Pacific oyster, Crassostrea gigas, has long been a matter of controversy. Morphological and physiological similarities, homogeneity of allozyme allelic frequencies between populations of the two taxa and the demonstration of hybridization lead most authors to suggest that they should be regrouped within the same species. The risk of introgression and the present expansion of C. gigas aquaculture in Europe raises the question of the need for preservation of C. angulata in Europe, as only a few populations remain. We studied European and Asian populations of C. gigas and C. angulata using microsatellite and mitochondrial DNA markers to estimate their genetic diversity and...
Tipo: Text
Palavras-chave: Phylogeography; Population genetics; Microsatellites; Crassostrea gigas; Crassostrea angulata.
Ano: 2000
URL: https://archimer.ifremer.fr/doc/2000/publication-707.pdf

Phylogeography of the green turtle, Chelonia mydas, in the Southwest Indian Ocean
Provedor de dados: 5
Autores: Bourjea, Jerome; Lapegue, Sylvie; Gagnevin, L; Broderick, D; Mortimer, J.a.; Ciccione, S; Roos, David; Taquet, Coralie; Grizel, Henri.
Patterns of mitochondrial DNA (mtDNA) variation were used to analyse the population genetic structure of southwestern Indian Ocean green turtle (Chelonia mydas) populations. Analysis of sequence variation over 396 bp of the mtDNA control region revealed seven haplotypes among 288 individuals from 10 nesting sites in the Southwest Indian Ocean. This is the first time that Atlantic Ocean haplotypes have been recorded among any Indo-Pacific nesting populations. Previous studies indicated that the Cape of Good Hope was a major biogeographical barrier between the Atlantic and Indian Oceans because evidence for gene flow in the last 1.5 million years has yet to emerge. This study, by sampling localities adjacent to this barrier, demonstrates that recent gene...
Tipo: Text
Palavras-chave: Phylogeography; Mozambique Channel; Mitochondrial DNA; Indian Ocean; Control region; Chelonia mydas.
Ano: 2007
URL: http://archimer.ifremer.fr/doc/2007/publication-2185.pdf

Evidence for the presence of the Portuguese oyster, Crassostrea angulata, in northern China
Provedor de dados: 5
Autores: Lapegue, Sylvie; Batista, Frederico; Heurtebise, Serge; Yu, Ziniu; Boudry, Pierre.
The Pacific oyster, Crassostrea gigas (Thunberg), and the Portuguese oyster, C. angulata (Lamarck), are two closely related taxa. Although these two taxa were both introduced from Asia into Europe. one (C. gigas) was voluntarily introduced in the early 1970s, whereas the other (C. angulata) was presumed to be present in Europe for at least four centuries, but nearly disappeared because of disease. Few C. angulata populations remained in southern Portugal, Spain and Morocco and their putative origin was traced in Taiwan. The present paper reports evidence for its presence in Northern China. We reanalyzed recently published mitochondrial cytochrome oxidase C subunit I (COI) sequence data from presumed Dalianwan oysters (C. talienwhanensis) and compared them...
Tipo: Text
Palavras-chave: Phylogeography; Cytochrome oxidase C subunit 1 gene; Crassostrea talienwhanensis; Gigas; Crosstrea; Crassostrea angulata; Cupped oysters.
Ano: 2004
URL: https://archimer.ifremer.fr/doc/2004/publication-3173.pdf

Mitochondrial and nuclear DNA phylogeography of  two cupped oysters Crassostrea gigas and Crassostrea angulata
Provedor de dados: 5
Autores: Boudry, Pierre; Huvet, Arnaud.
The taxonomic status of Crassostrea angulata and Crassostrea gigas has long been a matter of controversy. Morphological and physiological similarities, as well as homogeneity in allelic frequencies on allozymes between the populations of the two taxa, lead most authors to suggest to regroup of the two within the same species. European and Asian populations of C. gigas and C. angulata have been studied using microsatellite and mitochondrial DNA markers. The analysis of genetic distances and the distribution of allelic and haplotype frequencies revealed a differentiation between the populations of C. gigas and C. angulata. The data allowed the construction of Neighbor-joining trees for each of the two types of markers. Similar topologies appeared with data...
Tipo: Text
Palavras-chave: Mitochondrial DNA; Nuclear DNA; Phylogeography; Crassostrea angulata; Crassostrea gigas; Genetic; Oyster.
Ano: 1999
URL: http://archimer.ifremer.fr/doc/1999/acte-3434.pdf

Circumpolar dataset of sequenced specimens of Promachocrinus kerguelensis (Echinodermata, Crinoidea)
Provedor de dados: 5
Autores: Hemery, Lenaig G.; Ameziane, Nadia; Eleaume, Marc.
This circumpolar dataset of the comatulid (Echinodermata: Crinoidea) Promachocrinus kerguelensis (Carpenter, 1888) from the Southern Ocean, documents biodiversity associated with the specimens sequenced in Hemery et al. (2012). The aim of Hemery et al. (2012) paper was to use phylogeographic and phylogenetic tools to assess the genetic diversity, demographic history and evolutionary relationships of this very common and abundant comatulid, in the context of the glacial history of the Antarctic and Sub-Antarctic shelves (Thatje et al. 2005, 2008). Over one thousand three hundred specimens (1307) used in this study were collected during seventeen cruises from 1996 to 2010, in eight regions of the Southern Ocean: Kerguelen Plateau, Davis Sea, Dumont d'Urville...
Tipo: Text
Palavras-chave: Antarctica; Crinoidea; Cytochrome Oxydase subunit I; Echinodermata; Phylogeography; Promachocrinus; Southern Ocean; Sub-Antarctic.
Ano: 2013
URL: https://archimer.ifremer.fr/doc/00296/40758/39749.pdf

Longitudinal differentiation among pelagic populations in a planktic foraminifer
Provedor de dados: 5
Autores: Ujiie, Yurika; Asami, Takahiro; De Garidel-thoron, Thibault; Liu, Hui; Ishitani, Yoshiyuki; De Vargas, Colomban.
Evolutionary processes in marine plankton have been assumed to be dependent on the oceanic circulation system, which transports plankton between populations in marine surface waters. Gene flow facilitated by oceanic currents along longitudinal gradients may efficiently impede genetic differentiation of pelagic populations in the absence of confounding marine environmental effects. However, how responsible oceanic currents are for the geographic distribution and dispersal of plankton is poorly understood. We examined the phylogeography of the planktic foraminifer Pulleniatina obliquiloculata in the Indo-Pacific Warm Pool (IPWP) by using partial small subunit ribosomal DNA (SSU rDNA) sequences. We found longitudinal clines in the frequencies of three...
Tipo: Text
Palavras-chave: Longitudinal gradient; Ocean current; Phylogeography; Planktic foraminifer.
Ano: 2012
URL: https://archimer.ifremer.fr/doc/00140/25109/23218.pdf

Phylogeography of the reef-building polychaetes of the genus     Phragmatopoma     in the western Atlantic Region
Provedor de dados: 5
Autores: Nunes, Flavia; Van Wormhoudt, Alain; Faroni-perez, Larisse; Fournier, Jerome.
Aim  To verify the synonymy of the reef-building polychaete Phragmatopoma caudata (described for the Caribbean) and Phragmatopoma lapidosa (described for Brazil) using molecular data. To evaluate the patterns of genetic diversity and connectivity among populations from Florida to South Brazil. Location  Intertidal zone in the western Atlantic biogeographical Region: Brazil, eastern Caribbean and Florida (USA). Methods  DNA sequence data from one mitochondrial (cox-1) and one nuclear ribosomal (ITS-1) loci were obtained from 11 populations of P. caudata spanning the coasts of Brazil, eastern Caribbean and Florida. Phylogenetic relationships among populations of P. caudata and other members of the genus were inferred by Bayesian methods. Population...
Tipo: Text
Palavras-chave: Biogeographical barrier; Brazilian Province; Caribbean Province; Connectivity; Larval dispersal; Phragmatopoma caudata; Phylogenetics; Phylogeography; Polychaete reef; Western Atlantic Region.
Ano: 2017
URL: https://archimer.ifremer.fr/doc/00363/47376/47710.pdf

The impact of aquaculture on the genetics and distribution of the onuphid annelid Diopatra biscayensis
Provedor de dados: 5
Autores: Galaska, Matthew P.; Wethey, David S.; Arias, Andrés; Dubois, Stanislas; Halanych, Kenneth M.; Woodin, Sarah A.
Aim Evolutionary history of natural populations can be confounded by human intervention such as the case of decorator worm species Diopatra (Onuphidae), which have a history of being transported through anthropogenic activities. Because they build tubes and act as ecosystem engineers, they can have a large impact on the overall ecosystem in which they occur. One conspicuous member, Diopatra biscayensis, which was only described in 2012, has a fragmented distribution that includes the Bay of Biscay and the Normanno‐Breton Gulf in the English Channel. This study explores the origin of these worms in the Normanno‐Breton region, which has been debated to either be the result of a historic range contraction from a relic continuous population or a more recent...
Tipo: Text
Palavras-chave: Bay of Biscay; Convex Hull; Onuphidae; Phylogeography; Population genetics; RADseq.
Ano: 2021
URL: https://archimer.ifremer.fr/doc/00692/80411/83522.pdf

Oligoryzomys delticola es sinónimo de O. nigripes (Rodentia, Cricetidae, Sigmodontinae)
Provedor de dados: 81
Autores: Francés,José; D´Elía,Guillermo.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Alpha taxonomy; Cricetidae; Hantavirus; Muroidea; Phylogeography.
Ano: 2006
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-93832006000100010

Characterisation of a novel fruit type found in Ehretia (Ehretiaceae, Boraginales)
Provedor de dados: 16
Autores: Gottschling, M.; Hilger, H.H.
Ehretia (Ehretiaceae, Boraginales) has been divided into two major clades, characterised by fruits with four endocarpids (Ehretia I, including species of Ehretia formerly belonging to Rotula) and by fruits with two endocarpids (Ehretia II, plus E. microphylla (= Carmona retusa) with an undivided endocarp), respectively. Both molecular (ITS1) and morphological data support the recognition of an additional clade, Ehretia III (E. longiflora species group). Its representatives are characterised by four endocarpids (as in Ehretia I), but differ in the presence of distinct lamellae on the abaxial surface of each endocarpid (as in Bourreria, also belonging to Ehretiaceae). However, molecular data suggest a close relationship with Ehretia II. At least three...
Tipo: Article / Letter to the editor
Palavras-chave: Ehretia longiflora; Anatomy; Fruit; ITS1; Molecular systematics; Phylogeny; Phylogeography.
Ano: 2004
URL: http://www.repository.naturalis.nl/record/525580

Genetic differentiation through dispersal and isolation in two freshwater fish species from coastal basins of Northeastern Brazil
Provedor de dados: 83
Autores: Abreu,João Marcelo S.; Waltz,Brandon T.; Albert,James S.; Piorski,Nivaldo M.
Abstract The coastal basins in Northeastern Brazil used in this study make up two different ecoregions for freshwater fishes (Amazonas estuary and coastal drainages, and Parnaiba) and two areas of endemism for Characiformes (Maranhão and Parnaíba), and exhibits a diversified yet poorly explored freshwater fish fauna. The population structure and biogeography of two migratory freshwater fish species that are commercially exploited from Maranhão and Parnaíba regions were herein analyzed. Molecular sequence data and statistical analyses were used to estimate haplotypes networks and lineage divergence times and correlated with hydrographic history of drainage and paleodrainages of the region. A total of 171 sequences was produced for both species, Schizodon...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Characiformes; Headwater capture; Paleodrainages; Phylogeography; Sea-level change.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252020000300206

Historical biogeography of fishes from coastal basins of Maranhão State, northeastern Brazil
Provedor de dados: 83
Autores: Abreu,João Marcelo S.; Craig,Jack M.; Albert,James S.; Piorski,Nivaldo M.
ABSTRACT The Amazonian ichthyofauna is one of the most diverse in the world, yet fishes from the adjacent coastal basins of Maranhão State in Northeastern Brazil remain poorly known. We use phylogeographic, community phylogenetic and phylogenetic beta diversity methods to study the biogeographic history of fishes from the coastal basins of Maranhão State. We report a total of 160 fish species from the basins of the Maranhão region, representing a 93% increase over results of previous studies. All the fish species assemblages from Maranhão are polyphyletic, with only a few putative sister species pairs inhabiting the region. The modern watershed divides among Maranhão basins do not form substantial barriers to dispersal for freshwater fish species, and are...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biodiversity; Community phylogenetics; Paleogeography; Phylogenetic beta diversity; Phylogeography.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252019000200203

Phylogeographic pattern of Jenynsia multidentata(Cyprinodontiformes: Anablepidae) in the southern boundary of the Brazilian Subregion, Argentina
Provedor de dados: 83
Autores: Bruno,María Cecilia; Casciotta,Jorge Rafael; Almirón,Adriana Edith; Lizarralde,Marta Susana.
The Atlantic drainage basins are located in the southern Pampean area, in the southernmost part of the Brazilian subregion. Tectonic and paleoclimatic phenomena, occurring during the Quaternary, have currently isolated these basins from the present hydrographic system. Their ichthyofaunal composition is similar to that of hydric systems located further northward. Jenynsia multidentata is a species with wide distribution in the Atlantic drainage basins, as well as in those Northern basins. Here we investigated the phylogeographic pattern of Jenynsia multidentataand analyzed its relationships with the paleoclimatic and geologic history of the region. The analysis of the population's assemblage showed moderate genetic diversity, demographic equilibrium and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Control region; Genetic structure; Ichthyofauna; Phylogeography; Southern Pampean area.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252013000300477

Ontogenetic changes in mouth morphology triggers conflicting hypotheses of relationships in characid fishes (Ostariophysi: Characiformes)
Provedor de dados: 83
Autores: Hirschmann,Alice; Fagundes,Nelson J. R.; Malabarba,Luiz R.
ABSTRACT Bryconamericus lethostigmus is the type-species of the monotypic genus Odontostoechus, diagnosed in part based on the presence of a unique tooth series in the premaxilla. Recently a new proposal of classification of the Stevardiinae placed Odontostoechus as a junior synonym of a monophyletic genus Bryconamericus sensu stricto, a genus characterized by the presence of two tooth series. Bryconamericus lethostigmus is redescribed herein and the single tooth series in the premaxilla is demonstrated to originate from merging of the external tooth row with the inner row during ontogeny refuting primary hypothesis of homology between the mouth morphology of B. lethostigmus and the genera Bryconacidnus, Ceratobranchia, Monotocheirodon, Othonocheirodus,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Atlantic Forest; Cyanocharax itaimbe; Phylogeography; Tooth series; Tramandai-Mampituba ecoregion.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252017000100212

EXTINCTION RISK OR LACK OF SAMPLING IN A THREATENED SPECIES: GENETIC STRUCTURE AND ENVIRONMENTAL SUITABILITY OF THE NEOTROPICAL FROG PRISTIMANTIS PENELOPUS (ANURA: CRAUGASTORIDAE)
Provedor de dados: 84
Autores: RESTREPO,ADRIANA; VELASCO,JULIAN A.; DAZA,JUAN M.
ABSTRACT IUCN Red Lists have been a valuable tool to prioritize conservation plans in endemic neotropical frogs. However, many areas in this region are poorly known in terms of their diversity and endemism. Based on examined museum specimens of the threatened species Pristimantis penelopus we revised its geographic distribution and determined the habitat suitability using niche modeling techniques. Using a mitochondrial fragment of COI gene, we determine the phylogenetic position and the extent of the genetic variation across its distribution in Colombia. We present the first records of P. penelopus for the Cordillera Oriental, the western versant of Cordillera Occidental and the northern portion of the Cauca river basin. Based on the molecular...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Colombia; IUCN Red List; Niche modeling; Phylogeography; Terrarana.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492017000100001

High-level phylogeographic structuring of Neoleucinodes elegantalis Guenée (Lepidoptera, Crambridae) in Brazil: an important tomato pest
Provedor de dados: 92
Autores: Maia,André V.P.; Almeida,Cícero; Santoro,Kleber R.; Melo,João L.A.; Oliveira,José V.; Guedes,Raul N.C.; Badji,César A.
ABSTRACT Neoleucinodes elegantalis is an important tomato pest in Brazil, occurring throughout the country and resulting in economic losses in agriculture. In several species, biogeographic studies in Brazil indicate the structuring of populations, following the refuge model, with a split between the populations of the northeast and the southeast regions of Brazil. The objective of this work was to analyze the phylogeography of N. elegantalis in Brazil, understanding its population structure and the demographic patterns. Larvae were collected from eight locations throughout Brazil, and the mitochondrial cytochrome c oxidase subunit 1 gene was analyzed. A total of 628 bp in 51 individuals were obtained, showing 12 haplotypes with a haplotype diversity of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Insect pest; Phylogeography; Small tomato borer.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262016000300206

Wide-range genetic connectivity of Coney, Cephalopholis fulva (Epinephelidae), through oceanic islands and continental Brazilian coast
Provedor de dados: 42
Autores: Souza,Allyson S. de; Dias Júnior,Eurico A.; Galetti Jr,Pedro M.; Machado,Erik G.; Pichorim,Mauro; Molina,Wagner F.
The Epinephelidae form a group of species of high biological and economical interests. It´s phylogeographic patterns are not well known especially the distributed populations in the western region of the Atlantic Ocean. Among the representatives is a small species called Cephalopholis fulva, Coney, which presents a wide geographical distribution, polychromia, hermaphroditism and is quickly becoming a large target for the exploration of commercial fishing. The genetic and historical demography were obtained through the partial sequence analysis of Control Region from six locations on the coastline of Brazil from the northeast coast to the southwest coast, including the oceanic islands of Rocas Atoll and Fernando de Noronha Archipelago. The analyzed samples...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: D-loop; Glaciation; MtDNA; Panmixia; Phylogeography.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652015000100121

A systematic review of East African-Indian family of Mycobacterium tuberculosis in Brazil
Provedor de dados: 55
Autores: Duarte,Tonya Azevedo; Nery,Joilda Silva; Boechat,Neio; Pereira,Susan Martins; Simonsen,Vera; Oliveira,Martha; Gomes,Maria Gabriela Miranda; Penha-Gonçalves,Carlos; Barreto,Mauricio Lima; Barbosa,Theolis.
ABSTRACT  Introduction: The Mycobacterium tuberculosis East African-Indian (EAI) spoligotyping family (belonging to lineage 1, Indo-Oceanic, defined by the region of deletion RD239) is distributed worldwide, but is more prevalent in Southeast Asia, India, and East Africa. Studies in Latin America have rarely identified EAI. In this study, we describe the occurrence of the EAI family in Brazil.  Methods: EAI was identified in a systematic literature review of genetic diversity studies pertaining to M. tuberculosis in Brazil, as well as in a survey conducted in Salvador, Bahia, located in the northeastern region of this country.  Results: The EAI6-BGD1 spoligotyping family and the EAI5 Spoligotype International Type (SIT) 1983 clade were the most frequently...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mycobacterium tuberculosis; Phylogeography; Genotyping; Epidemiology.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702017000300317