SABIIA - Sistema Aberto e Integrado de Informação em Agricultura (Sabiia)

Sousa,Luciene C.C.; Gontijo,Célia M.F.; Botelho,Helbert A.; Fonseca,Cleusa G..

Didelphis albiventris is a well-known and common marsupial. Due to its high adaptability, this very widespread generalist species occurs under various environmental conditions, this even including protected regions and disturbed urban areas. We studied a 653 bp fragment of cytochrome oxidase c (COI) from 93 biological samples from seven Brazilian localities, with linear distances ranging between 58 and about 1800 km to analyze the effects of geographic distances on variability and genetic differentiation. The haplotype network presented nine haplotypes and two genetic clusters compatible with the two most distant geographic areas of the states of Minas Gerais, in the southeast, and Rio Grande do Sul, in the extreme south. As each cluster was characterized...

Phylogenetic relationships and the evolution of mimicry in the Chauliognathus yellow-black species complex (Coleoptera: Cantharidae) inferred from mitochondrial COI sequences

Palavras-chave: Didelphis albiventris; Marsupial; Variability; COI; Genetic differentiation.

Ano: 2012

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572012000300020

Machado,Vilmar; Araujo,Aldo M.; Serrano,José; Galián,José.

The phylogenetic relationships of twelve species of Chauliognathus were investigated by studying the mitochondrial cytochrome oxidase I gene. A 678 bp fragment of the COI gene was sequenced to test the hypothesis that the Müllerian mimicry species of the "yellow-black" complex make up a monophyletic clade, separated from species with other colour patterns. The data set was analysed by neighbour-joining, maximum parsimony and maximum likelihood procedures. The results support a single origin of the yellow-black colour pattern during the evolution of the genus, with one main clade formed by Chauliognathus lineatus, C. tetrapunctatus, C. riograndensis, C. flavipes, C. octomaculatus, C. fallax, and another one formed by two species, C. expansus and C sp 1,...

A test of the utility of DNA barcoding in the radiation of the freshwater stingray genus Potamotrygon (Potamotrygonidae, Myliobatiformes)

Palavras-chave: Cantharidae; Chauliognathus; COI; Coleoptera; Müllerian mimicry; Phylogeny; Yellow-black complex.

Ano: 2004

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572004000100010

Toffoli,Daniel; Hrbek,Tomas; Araújo,Maria Lúcia Góes de; Almeida,Maurício Pinto de; Charvet-Almeida,Patricia; Farias,Izeni Pires.

DNA barcoding is a recently proposed global standard in taxonomy based on DNA sequences. The two main goals of DNA barcoding methodology are assignment of specimens to a species and discovery of new species. There are two main underlying assumptions: i) reciprocal monophyly of species, and ii) intraspecific divergence is always less than interspecific divergence. Here we present a phylogenetic analysis of the family Potamotrygonidae based on mitochondrial cytochrome c oxidase I gene, sampling 10 out of the 18 to 20 valid species including two non-described species. Potamotrygonidae systematics is still not fully resolved with several still-to-be-described species while some other species are difficult to delimit due to overlap in morphological characters...

Significant genetic differentiation among populations of Anomalocardia brasiliana (Gmelin, 1791): a bivalve with planktonic larval dispersion

Palavras-chave: Potamotrygon; Barcoding; Radiation; Phylogenetics; COI; MtDNA.

Ano: 2008

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572008000200028

Arruda,Cinthya Cristina Bulhões; Beasley,Colin Robert; Vallinoto,Marcelo; Marques-Silva,Nelane do Socorro; Tagliaro,Claudia Helena.

Four Brazilian populations of Anomalocardia brasiliana were tested for mutual genetic homogeneity, using data from 123 sequences of the mtDNA cytochrome oxidase c subunit I gene. A total of 36 haplotypes were identified, those shared being H3 (Canela Island, Prainha and Acupe) and both H5 and H9 (Prainha and Acupe). Haplotype diversity values were high, except for the Camurupim population, whereas nucleotide values were low in all the populations, except for that of Acupe. Only the Prainha population showed a deviation from neutrality and the SSD test did not reject the demographic expansion hypothesis. Fst values showed that the Prainha and Acupe populations represent a single stock, whereas in both the Canela Island and Camurupim stocks, population...

Molecular evidence of two cryptic species of Stramonita (Mollusca, Muricidae) in the southeastern Atlantic coast of Brazil

Palavras-chave: MtDNA; COI; Population; Anomalocardia brasiliana; Conservation.

Ano: 2009

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572009000200033

De Biasi,Juliana Beltramin; Tomás,Acácio Ribeiro Gomes; Hilsdorf,Alexandre Wagner Silva.

Abstract Snails of the genus Stramonita are commonly found in the rocky intertidal habitat of the western Atlantic Ocean coast. They belong to a monophyletic taxon that occurs along the tropical and warm-temperate Atlantic and eastern Pacific rocky shores. This genus comprises different valid species and members of the S. haemastoma complex. In the present study, samples of Stramonita were collected from three different regions of southeastern Brazil. Partial sequences of two mitochondrial genes, COI and 16S rRNA, were used to compare nucleotides sequences between Stramonita specimens. Levels of nucleotide divergence greater than 2% across the three sampled regions were used for differentiation at the species level. One of the identified species was S....

Tipo: Info:eu-repo/semantics/other

Palavras-chave: COI; 16s rRNA; Mitochondrial DNA; Southern oyster drill; Brazilian coast.

Ano: 2016

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572016000300392

The history of the introduction of the giant river prawn, Macrobrachium cf. rosenbergii (Decapoda, Palaemonidae), in Brazil: new insights from molecular data

Iketani,Gabriel; Pimentel,Luciana; Silva-Oliveira,Glaúcia; Maciel,Cristiana; Valenti,Wagner; Schneider,Horacio; Sampaio,Iracilda.

The giant river prawn, Macrobrachium cf. rosenbergii, is one of the most cultivated freshwater prawns in the world and has been introduced into more than 40 countries. In some countries, this prawn is considered an invasive species that requires close monitoring. Recent changes in the taxonomy of this species (separation of M. rosenbergii and M. dacqueti) require a re-evaluation of introduced taxa. In this work, molecular analyses were used to determine which of these two species was introduced into Brazil and to establish the geographic origin of the introduced populations that have invaded Amazonian coastal waters. The species introduced into Brazil was M. dacqueti through two introduction events involving prawns originating from Vietnam and either...

Presence of two mitochondrial genomes in the mytilid Perumytilus purpuratus: Phylogenetic evidence for doubly uniparental inheritance

Palavras-chave: Bioinvasion; Exotic species; Giant river prawn; Macrobrachium dacqueti; COI; 16S rRNA; Amazonia.

Ano: 2011

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572011000100025

Vargas,Jaime; Pérez,Montse; Toro,Jorge; Astorga,Marcela P..

This study presents evidence, using sequences of ribosomal 16S and COI mtDNA, for the presence of two mitochondrial genomes in Perumytilus purpuratus. This may be considered evidence of doubly uniparental mtDNA inheritance. The presence of the two types of mitochondrial genomes differentiates females from males. The F genome was found in the somatic and gonadal tissues of females and in the somatic tissues of males; the M genome was found in the gonads and mantle of males only. For the mitochondrial 16S region, ten haplotypes were found for the F genome (nucleotide diversity 0.004), and 7 haplotypes for the M genome (nucleotide diversity 0.001), with a distance Dxy of 0.125 and divergence Kxy of 60.33%. For the COI gene 17 haplotypes were found for the F...

Genetic identification of bucktooth parrotfish Sparisoma radians (Valenciennes, 1840) (Labridae, Scarinae) by chromosomal and molecular markers

Palavras-chave: Mytilidae; 16S; COI; Perumytilus; DUI.

Ano: 2015

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572015000200173

Paim,Fabilene Gomes; Brandão,José Henrique Souza Galdino; Sampaio,Iracilda; Affonso,Paulo Roberto Antunes de Mello; Diniz,Débora.

Parrotfishes (Labridae, Scarinae) comprise a large marine fish group of difficult identification, particularly during juvenile phase when the typical morphology and coloration of adults are absent. Therefore, the goal of this study was to test cytogenetic markers and DNA barcoding in the identification of bucktooth parrtotfish Sparisoma radians from the northeastern coast of Brazil. Sequencing of cytochrome c oxidase subunit I (COI) confirmed all studied samples as S. radians, and all showed high similarity (99-100%) with Caribbean populations. The karyotype of this species was divergent from most marine Perciformes, being composed of 2n = 46 chromosomes. These consisted of a large number of metacentric and submetacentric pairs with small amounts of...

Phylogenetic position and taxonomy of Cycloseris explanulata and C. wellsi (Scleractinia: Fungiidae): lost mushroom corals find their way home

Palavras-chave: COI; Karyotype; South Atlantic fish; Ribossomal genes; Robertsonian rearrangements.

Ano: 2014

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572014000500007

Benzoni, Francesca; Arrigoni, Roberto; Stefani, Fabrizio; Reijnen, Bastian T.; Montano, Simone; Hoeksema, Bert W..

The scleractinian species Psammocora explanulata and Coscinaraea wellsi were originally classified in the family Siderastreidae, but in a recent morpho-molecular study it appeared that they are more closely related to each other and to the Fungiidae than to any siderastreid taxon. A subsequent morpho-molecular study of the Fungiidae provided new insights regarding the phylogenetic relationships within that family. In the present study existing molecular data sets of both families were analyzed jointly with those of new specimens and sequences of P. explanulata and C. wellsi. The results indicate that both species actually belong to the Cycloseris clade within the family Fungiidae. A reappraisal of their morphologic characters based on museum specimens and...

Tipo: Text

Palavras-chave: COI; Coscinaraea wellsi; Psammocora explanulata; RDNA.

Ano: 2012

URL: https://archimer.ifremer.fr/doc/00145/25580/23718.pdf

Not all spotted cats are leopards: evidence for a Hemilienardia ocellata species complex (Gastropoda: Conoidea: Raphitomidae)

Fedosov, Alexander E.; Stahlschmidt, Peter; Puillandre, Nicolas; Aznar-cormano, Laetitia; Bouchet, Philippe.

The small conoidean Hemilienardia ocellata is one of the easily recognizable Indo-Pacific "turrids", primarily because of its remarkable eyespot colour pattern. Morphological and molecular phylogenetic analyses revealed four species that share this "characteristic" colour pattern but demonstrate consistent differences in size and shell proportions. Three new species - Hemilienardia acinonyx sp. nov. from the Philippines, H. lynx sp. nov. from Papua New Guinea and H. pardus sp. nov. from the Society and Loyalty Islands - are described based on the results of phylogenetic analyses. Although the H. ocellata species complex clade falls in a monophyletic Hemilienardia, H. ocellata and H. acinonyx sp. nov. possess a radula with semi-enrolled or notably flattened...

Tipo: Text

Palavras-chave: Integrative taxonomy; Species delimitation; Indo-Pacific; COI; 16S..

Ano: 2017

URL: https://archimer.ifremer.fr/doc/00479/59033/61660.pdf

A new species of Phyllochaetopterus (Annelida: Chaetopteridae) from deep-sea hydrothermal Ashadze-1 vent field, Mid-Atlantic Ridge: taxonomical description and partial COI DNA sequence

First record of the coloured righteye flounder, Poecilopsetta colorata (Teleostei: Poecilopsettidae) from the Sakalaves seamounts in the Mozambique Channel

Morineaux, Marie; Nishi, Eijiroh; Ormos, Andrea; Mouchel, Olivier.

Phyllochaetopterus polus, a new species of the polychaete family Chaetopteridae is described. Specimens were collected at the Ashadze-1 vent field (Mid-Atlantic Ridge), from 4100-4200 m depth. P polus is the first chaetopterid reported from the Atlantic hydrothermal vents. Three chaetopterid species have been recorded from deep-sea hydrothermal vents belonging to two genera, Spiochaetopterus and Phyllochaetopterus. P polus sp. nov. is a medium-sized chaetopterid, characterized by 9 chaetigers in region A and 2 in region B; region C is usually incomplete in the specimens examined, but has at least 40-70 chaetigers. This polychaete has one pair of modified chaetae in chaetiger 4 with a pear-shaped obliquely truncated head, triangular uncini and a branched...

Tipo: Text

Palavras-chave: Polychaeta; Hydrothermal vent; Mid-Atlantic Ridge; Taxonomy; New species; COI.

Ano: 2010

URL: http://archimer.ifremer.fr/doc/00013/12439/9250.pdf

Taxonomy and phylogenetic relationships of the coral genera Australomussa and Parascolymia (Scleractinia, Lobophylliidae)

Chen, Wei-jen; Chen, Jhen-nien; Pernet, Marie Eve Julie; Olu, Karine.

Background: The coloured righteye flounder, Poecilopsetta colorata Günther, 1880 was previously known from the eastern Indian Ocean to the South China Sea and Indonesia. Here, a new record from the western Indian Ocean is reported. Results: The new record is based on a specimen collected on the Sakalaves seamounts at 375 m in depth in the Mozambique Channel during a recent oceanographic survey. Four other teleost fish species including an uncommon ophidiid species, Neobythites somaliaensis Nielsen, 1995 were also collected on the same seamounts. Conclusions: The presence of P. colorata in the Mozambique Channel suggests a broad and Indo-West Pacific wide distribution for this relatively rare deep-sea species. The sequence of the cytochrome oxidase...

Tipo: Text

Palavras-chave: Fishes; New record; Distribution; Western Indian Ocean; Mozambique Channel; Sakalaves seamounts; COI; PAMELA-MOZ01 cruise.

Ano: 2016

URL: http://archimer.ifremer.fr/doc/00353/46385/46009.pdf

Arrigoni, Roberto; Richards, Zoe T.; Chen, Chaolun Allen; Baird, Andrew H.; Benzoni, Francesca.

Novel micromorphological characters in combination with molecular studies have led to an extensive revision of the taxonomy and systematics of scleractinian corals. In the present work, we investigate the macro- and micromorphology and the phylogenetic position of the genera Australomussa and Parascolymia, two monotypic genera ascribed to the family Lobophylliidae. The molecular phylogeny of both genera was addressed using three markers, the partial mitochondrial COI gene and the nuclear histone H3 and the ribosomal ITS region. Based on molecular data, Australomussa and Parascolymia belong to the Lobophylliidae and they cluster together with the genera Lobophyllia and Symphyllia within the same clade. While A. rowleyensis and P. vitiensis are closely...

Tipo: Text

Palavras-chave: COI; Evolution; Histone H3; Lobophyllia; Pacific Ocean; RDNA; Symphyllia; Systematics; Taxonomic revision.

Ano: 2014

URL: https://archimer.ifremer.fr/doc/00298/40912/39970.pdf

Phylogeny and phylogeography of Atlantic oyster species: evolutionary history, limited genetic connectivity and isolation by distance

Molecular phylogeny and evolution of the cone snails (Gastropoda, Conoidea)

Lazoski, C.; Gusmao, J.; Boudry, Pierre; Sole-cava, A. M..

The phylogenetic relationships between naturally occurring Atlantic Crassostrea oyster species were inferred through analyses of mitochondrial (cytochrome oxidase subunit I and 16S) and nuclear (second internal transcribed spacer) sequences. We also scored 15 allozyme loci on 422 oysters to study population structuring of C. rhizophorae and C. brasiliana along 9000 km of the Western Atlantic coastline. Despite morphological similarities, C. virginica was genetically more closely related to C. rhizophorae than to C. brasiliana. In contrast, C. paraibanensis was genetically indistinguishable from C. brasiliana, which is probably a junior synonym of the African C. gasar. Significant genetic differentiation between populations of C. rhizophorae and C. gasar...

Tipo: Text

Palavras-chave: Population genetics; Biogeography; Allozymes; Cytochrome c oxidase subunit I; COI; 16S; Internal transcribed spacer 2; ITS-2.

Ano: 2011

URL: http://archimer.ifremer.fr/doc/00033/14464/11765.pdf

Morphological and molecular characterization of Isostichopus sp. in the Colombian Caribbean sea

Puillandre, N.; Bouchet, P.; Duda, T. F., Jr.; Kauferstein, S.; Kohn, A. J.; Olivera, B. M.; Watkins, M.; Meyer, C..

We present a large-scale molecular phylogeny that includes 320 of the 761 recognized valid species of the cone snails (Conus), one of the most diverse groups of marine molluscs, based on three mitochondrial genes (COI, 16S rDNA and 12S rDNA). This is the first phylogeny of the taxon to employ concatenated sequences of several genes, and it includes more than twice as many species as the last published molecular phylogeny of the entire group nearly a decade ago. Most of the numerous molecular phylogenies published during the last 15 years are limited to rather small fractions of its species diversity. Bayesian and maximum likelihood analyses are mostly congruent and confirm the presence of three previously reported highly divergent lineages among cone...

Tipo: Text

Palavras-chave: Ancestral state reconstruction; Conidae; Conus; COI; 16SrRNA; 12SrRNA.

Ano: 2014

URL: https://archimer.ifremer.fr/doc/00468/57920/83480.pdf

JBAG

Vergara,W; Agudelo,V; Castro,L; R. Rodríguez,A; Eeckhaut,I.

Isostichopus sp. (Aspidochirotida: Stichopodidae) are sea cucumbers widely distributed in the Caribbean Sea. Amongst them, Isostichopus badionotus is one of the most harvested species. It shows a wide range of morphotypes widespread in the Caribbean region including different habitats (muddy, sandy and rocky bottoms, and sea grass beds). In Colombia, three morphotypes can be distinguished; two of them live in sea grass beds while the third one is found on rocky substrates. The present study describes the morphological characteristics of these morphotypes and analyzes their genetic structures through 16S rDNA and COI data. Our phylogenetic analyses show that the morphotype living on rocky substrates is morphologically and genetically distinct from the two...