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Registros recuperados: 57
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Soil-dwelling polychaetes: enigmatic as ever? Some hints on their phylogenetic relationships as suggested by a maximum parsimony analysis of 18S rRNA gene sequences Naturalis
Rota, Emilia; Martin, Patrick; Erséus, Christer.
To re-evaluate the various hypotheses on the systematic position of Parergodrilus heideri Reisinger, 1925 and Hrabeiella periglandulata Pizl & Chalupský, 1984, the sole truly terrestrial non-clitellate annelids known to date, their phylogenetic relationships were investigated using a data set of new 18S rDNA sequences of these and other five relevant annelid taxa, including an unknown species of Ctenodrilidae, as well as homologous sequences already available for 18 polychaetes, one aphanoneuran, 11 clitellates, two pogonophorans, one echiuran, one sipunculan, three molluscs and two arthropods. Two different alignments were constructed, according to an algorithmic method (Clustal W) and on the basis of a secondary structure model (DCSE), A maximum...
Tipo: Article / Letter to the editor Palavras-chave: Terrestrial Polychaeta; Parergodrilus heideri; Stygocapitella subterranea; Hrabeiella periglandulata; I8S rRNA gene; Molecular phylogeny; Rapid radiation.
Ano: 2001 URL: http://www.repository.naturalis.nl/record/534378
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South Pacific Cleistocalyx transferred to Syzygium (Myrtaceae) Naturalis
Biffin, E.; Craven, L.A.; Tuiwawa, M.; Crisp, M.D.; Gadek, P.A..
Evidence from both morphological and molecular phylogenetic data support the view that the circumscissile calycine calyptra, the sole defining character of Cleistocalyx, has multiple origins within Syzygium s. l. and is therefore an invalid basis for generic circumscription. Accordingly, the Fijian Cleistocalyx are transferred to Syzygium, and the new combinations Syzygium decussatus, S. eugenioides and S. seemannii, are made. Syzygium myrtoides is reinstated, and Cleistocalyx ellipticus, C. longiflorus, C. kasiensis and C. seemannii var. punctatus are reduced to the synonymy of S. seemannii. The distribution of S. seemannii is extended to Vanuatu.
Tipo: Article / Letter to the editor Palavras-chave: Acicalyptus; Cleistocalyx; Syzygium; Myrtaceae; Molecular phylogeny; Morphology.
Ano: 2005 URL: http://www.repository.naturalis.nl/record/525909
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Genera of diaporthalean coelomycetes associated with leaf spots of tree hosts Naturalis
Crous, P.W.; Summerell, B.A.; Alfenas, A.C.; Edwards, J.; Pascoe, I.G.; Porter, I.J.; Groenewald, J.Z..
Four different genera of diaporthalean coelomycetous fungi associated with leaf spots of tree hosts are morphologically treated and phylogenetically compared based on the DNA sequence data of the large subunit nuclear ribosomal DNA gene (LSU) and the internal transcribed spacers and 5.8S rRNA gene of the nrDNA operon. These include two new Australian genera, namely Auratiopycnidiella, proposed for a leaf spotting fungus occurring on Tristaniopsis laurina in New South Wales, and Disculoides, proposed for two species occurring on leaf spots of Eucalyptus leaves in Victoria. Two new species are described in Aurantiosacculus, a hitherto monotypic genus associated with leaf spots of Eucalyptus in Australia, namely A. acutatus on E. viminalis, and A....
Tipo: Article / Letter to the editor Palavras-chave: Leaf spot disease; Molecular phylogeny; Systematics.
Ano: 2012 URL: http://www.repository.naturalis.nl/record/531869
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Three new Graphium species from baobab trees in South Africa and Madagascar Naturalis
Cruywagen, E.M.; Beer, Z.W. de; Roux, J.; Wingfield, M.J..
Australia has efficient and visible plant quarantine measures, which through various border controls and survey activities attempt to prevent the entry of unwanted pests and diseases. The ability to successfully perform this task relies heavily on determining what pathogens are present and established in Australia as well as those pathogens that are exotic and threatening. There are detailed checklists and databases of fungal plant pathogens in Australia, compiled, in part, from surveys over many years sponsored by Federal and State programmes. These checklists and databases are mostly specimen-based, which enables validation of records with reference herbarium specimens and sometimes associated cultures. Most of the identifications have been based on...
Tipo: Article / Letter to the editor Palavras-chave: Disease associated fungi; Disease threats; Molecular phylogeny; Quarantine; Taxonomy.
Ano: 2010 URL: http://www.repository.naturalis.nl/record/532219
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Davalliaceae in Peninsular Malaysia, a preliminary study based on trnL-F region Naturalis
Maideen, H.; Milne, R.I.; Gibby, M..
A preliminary molecular analysis based on trnL-F region is presented for 17 taxa of Davalliaceae in Peninsular Malaysia. Maximum parsimony and Bayesian analysis were conducted on the dataset in order to establish a robust phylogenetic relationship between taxa. The results of analysis indicate incongruence with morphological classification. All genera of Davalliaceae in the study area are paraphyletic except Araiostegia which is represented by only a single species. In addition it partially agrees with recent phylogeny base on rbcL data.
Tipo: Article / Letter to the editor Palavras-chave: Davalliaceae; Molecular phylogeny; Peninsular Malaysia; TrnL-F.
Ano: 2009 URL: http://www.repository.naturalis.nl/record/524899
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The velvet spiders: an atlas of the Eresidae (Arachnida, Araneae) Naturalis
Miller, J.A.; Griswold, C.E.; Scharff, N.; Řezáč, M.; Szűts, T.; Marhabaie, M..
The family Eresidae C. L. Koch, 1850 is reviewed at the genus level. The family comprises nine genera including one new genus. They are: Adonea Simon, 1873, Dorceus C. L. Koch, 1846, Dresserus Simon, 1876, Eresus Walckenaer, 1805, Gandanameno Lehtinen, 1967, Loureedia gen. n., Paradonea Lawrence, 1968, Seothyra Purcell, 1903, and Stegodyphus Simon, 1873. A key to all genera and major lineages is provided along with corresponding diagnoses, as well as descriptions of selected species. These are documented with collections of photographs, scanning electron micrographs, and illustrations. A new phylogeny of Eresidae based on molecular sequence data expands on a previously published analysis. A species of the genus Paradonea Lawrence, 1968 is sequenced and...
Tipo: Article / Letter to the editor Palavras-chave: Ladybird spiders; Molecular phylogeny; Spinneret spigot morphology; Taxonomy; 42.74.
Ano: 2012 URL: http://www.repository.naturalis.nl/record/419786
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Taxonomic study of the Japanese Dacrymycetes Naturalis
Shirouzu, T.; Hirose, D.; Tokumasu, S..
The class Dacrymycetes is a rather small group of brown-rot wood-decaying jelly fungi characterised by forked basidia and an orange to yellow gelatinous to cartilaginous fruit body. In Japan, dacrymycetous fungi had not been investigated for a long time, justifying a taxonomic re-examination. In the present study we attempted an investigation of the dacrymycetous fungal flora of Japan, and recognised 28 taxonomic entities, including five new taxa, i.e. Dacrymyces ancyleus, D. aureosporus, D. pinacearum, D. subarcticus and Dacryopinax sphenocarpa, and nine new records. Due to the present survey, the total number of dacrymycetous species recorded from Japan increased from 28 to 42. Of the newly described species, Dacrymyces ancyleus is characterised by...
Tipo: Article / Letter to the editor Palavras-chave: Dacrymycetes; Japanese species; Molecular phylogeny; New species; Taxonomy.
Ano: 2009 URL: http://www.repository.naturalis.nl/record/532128
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New taxa, including three new genera show uniqueness of Neotropical Nepticulidae (Lepidoptera) Naturalis
Nieukerken, E.J. van; Doorenweerd, C.; Nishida, K.; Snyers, C..
After finding distinct clades in a molecular phylogeny for Nepticulidae that could not be placed in any known genera and discovering clear apomorphic characters that define these clades, as well as a number of Neotropical species that could be placed in known genera but were undescribed, three new genera and nine new species are here described from the Neotropics: Stigmella gallicola van Nieukerken & Nishida, sp. n. reared from galls on Hampea appendiculata (Malvaceae) in Costa Rica, representing the first example of a gall making Stigmella; S. schinivora van Nieukerken, sp. n. reared from leafmines on Schinus terebinthifolia (Anacardiaceae) in Argentina, Misiones; S. costaricensis van Nieukerken & Nishida, sp. n. and S. intronia van Nieukerken...
Tipo: Article / Letter to the editor Palavras-chave: New species; New genus; Taxonomy; Leafmines; Gall; Molecular phylogeny.
Ano: 2016 URL: http://www.repository.naturalis.nl/record/648815
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A morphometric and molecular study of Anastrepha pickeli Lima (Diptera: Tephritidae) Neotropical Entomology
Bomfim,ZV; Lima,KM; Silva,JG; Costa,MA; Zucchi,RA.
This study investigated the level of morphometric and genetic variability among populations of Anastrepha pickeli Lima from several localities in Brazil, one locality in Bolivia and one in Paraguay. Traditional and geometric morphometric analyses were used, as well as sequencing of a fragment of the cytochrome oxidase gene (COI). Six variables were measured from the aculeus for traditional morphometric analysis and 14 landmarks from the right wing were used for geometric analysis, using 10 specimes/population. The aculeus tip length, aculeus width at the end of the cloaca opening, and the serrate part length contributed with 62.7% for grouping. According to the results from traditional morphometry, there was no significant difference, but the multivariate...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Fruit fly; Geometric and traditional morphometry; Molecular phylogeny; Cytochrome oxidase I (COI); Taxonomy.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2011000500010
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Description of a new species of Moenkhausia (Characiformes: Characidae) from the upper Paraguay basin, Central Brazil, with comments on its phylogenetic relationships Neotropical Ichthyology
Britzke,Ricardo; Troy,Waldo P.; Oliveira,Claudio; Benine,Ricardo C..
ABSTRACT A new species of Moenkhausia is described from tributaries of the upper rio Sepotuba, Paraguay basin, Brazil. The new species is distinguished from its congeners by a combination of characters, including an inconspicuous oval-shaped vertically elongated humeral blotch, extending horizontally from third through five lateral-line scales, and vertically from third row above lateral line to first row below it, followed by a diffuse field of dark chromatophores in the flank, combined with a well-defined dark line at the base of the anal fin. Furthermore, the phylogenetic position of the new species is presented based on molecular data, showing a close relationship among species of Moenkhausia and Hemigrammus that have a well-defined dark line at the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Hemigrammus; Molecular phylogeny; Neotropical tetras; Taxonomy.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252018000200211
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Phylogenetic analyses of Cladophora vagabunda (L.) C. Hoek (Cladophorales, Chlorophyta) from Brazil based on SSU rDNA sequences Rev. Bras. Bot.
Gestinari,Lísia Mônica de Souza; Oliveira,Mariana Cabral de; Milstein,Daniela; Yoneshige-Valentin,Yocie; Pereira,Sonia Maria Barreto.
The complete SSU rDNA was sequenced for 10 individuals of Cladophora vagabunda collected along the coast of Brazil. For C. rupestris (L.) Kütz. a partial SSU rDNA sequence (1634 bp) was obtained. Phylogenetic trees indicate that Cladophora is paraphyletic, but the section Glomeratae sensu lato including C. vagabunda from Brazil, Japan and France, C. albida (Nees) Kütz., C. sericea (Hudson) Kütz., and C. glomerata (L.) Kütz. is monophyletic. Within this group C. vagabunda is paraphyletic. The sequence identity for the SSU rDNA varied from 98.9% to 100% for the Brazilian C. vagabunda, and from 98.3% to 99.7% comparing the Brazilian individuals to the ones from France and Japan. Sequence identity of the Brazilian C. vagabunda to C. albida and C. sericea vary...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Brazil; Cladophora vagabunda; Cladophorales; Molecular phylogeny; SSU rDNA.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042009000300012
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Description of a new and highly distinctive genus and species of Euptychiina (Lepidoptera: Nymphalidae: Satyrinae) from the Brazilian southern Amazon Rev. Bras. entomol.
Freitas,André V.L.; Mota,Luísa L.; Zacca,Thamara; Barbosa,Eduardo P..
ABSTRACT A new genus and species of Euptychiina (Satyrinae), Cristalinaia vitoria Mota, Zacca & Freitas gen. et sp. nov., is described based on three specimens collected in the region of the Cristalino River, Alta Floresta, Mato Grosso, Brazil. This rare species is known only from this region, where it flies inside the dense bamboo patches typical of that area. The last instar larva and the pupa are described; the larva was observed feeding on mature leaves of the common bamboo Guadua aff. paniculata Munro.urn:lsid:zoobank.org:pub:D61EDE8D-CAE9-41C6-B24D-BB789873566E
Tipo: Info:eu-repo/semantics/article Palavras-chave: Amazonia; Immature stages; Morphology; Molecular phylogeny; Taxonomy.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262019000300254
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DNA barcoding of a tropical anguillid eel, Anguilla bicolor (Actinopterygii: Anguilliformes), in Indo-Pacific region and notes on its population structure Rev. Bras. Zool.
Norarfan,Ahmad Fathi; Mokti,Siti Shazwani Azreena; Taha,Hussein; Amin,Muhamad; Ali,Muhamad; Arai,Takaomi.
ABSTRACT The tropical anguillid eel, Anguilla bicolor McCelland, 1844, includes two subspecies, Anguilla bicolor bicolor McCelland, 1844 and Anguilla bicolor pacifica Schmidt, 1928, and is distributed across the Indo-Pacific region. Although A. bicolor is widely distributed and recognized as an important fish resource in the Indo-Pacific region, few studies have been conducted on its genetic variation and population structure. DNA barcoding of A. bicolor specimens collected in the Indo-Pacific region was carried out in this study using mitochondrial cytochrome c oxidase subunit I. Anguilla bicolor was found to diverge genetically, which supported its classification into two different subspecies. In addition, our study showed that A. bicolor bicolor had two...
Tipo: Info:eu-repo/semantics/other Palavras-chave: Anguillid eel; Haplotype network; Molecular phylogeny; Tropical species.
Ano: 2021 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702021000100501
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Molecular diversity among domestic guinea-pigs (Cavia porcellus) and their close phylogenetic relationship with the Andean wild species Cavia tschudii RChHN
SPOTORNO,ÁNGEL E; VALLADARES,JOHN P; MARÍN,JUAN C; ZEBALLOS,HORACIO.
To investigate the origin and diversity of domestic guinea-pigs Cavia porcellus (Linnaeus, 1758; Rodentia, Caviidae), we sequenced the mitochondrial cytochrome b gene of 12 domestic and 10 wild specimens from six species, including the two presumed as ancestral to the domestic one: Cavia tschudii and Cavia aperea. All maximum parsimony and maximum likelihood analyses grouped C. porcellus with C. tschudii (mean K2P distance = 3.2 %); best trees had 609 steps (CI = 0.796; Bremer support Index (SI) = 28), and a _Ln = 4419.52, with 100 % and 97 % bootstrap support respectively. This clade, supported by three substitutions and 96 % bootstrap, is also obtained in the cladistic analysis of corresponding amino acids. When the C. aperea node was forced to join C....
Tipo: Journal article Palavras-chave: Andes; Cavidae; Cytochrome b; Domestication; Guinea pig; Molecular phylogeny.
Ano: 2004 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2004000200004
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Toward a phylogenetic reclassification of the subfamily Ambavioideae (Annonaceae): establishment of a new subfamily and a new tribe Acta Botanica
Chaowasku,Tanawat.
ABSTRACT A molecular phylogeny of the subfamily Ambavioideae (Annonaceae) was reconstructed using up to eight plastid DNA regions (matK, ndhF, and rbcL exons; trnL intron; atpB-rbcL, psbA-trnH, trnL-trnF, and trnS-trnG intergenic spacers). The results indicate that the subfamily is not monophyletic, with the monotypic genus Meiocarpidium resolved as the second diverging lineage of Annonaceae after Anaxagorea (the only genus of Anaxagoreoideae) and as the sister group of a large clade consisting of the rest of Annonaceae. Consequently, a new subfamily, Meiocarpidioideae, is established to accommodate the enigmatic African genus Meiocarpidium. In addition, the subfamily Ambavioideae is redefined to contain two major clades formally recognized as two tribes....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Annonaceae; Ambavioideae; Meiocarpidium; Molecular phylogeny; Systematics; Taxonomy.
Ano: 2020 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000300522
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Separation of the genera in the subtribe Cassiinae (Leguminosae: Caesalpinioidae) using molecular markers Acta Botanica
Acharya,Laxmikanta; Mukherjee,Arup Kumar; Panda,Pratap Chandra.
Random amplified polymorphic DNA (RAPD), Inter simple sequence repeat (ISSR) and Amplified fragment length polymorphism (AFLP) markers were used to verify the segregation of the genus Cassia L. senso lato into three distinct genera namely Chamaecrista Moench., Senna P. Mill. and Cassia L. sensostricto Eighteen representatives of the three taxa were characterized using the molecular markers. 25 RAPD, six ISSR primers and six AFLP primer combinations resulted in the amplification of 612, 115 and 622 bands (loci) respectively. Most of the loci are found to be polymorphic, showing high degrees of genetic diversity among the different taxa studied. The dendrogram constructed on the basis of the RAPD, ISSR and AFLP data using SHAN clustering, divided Cassia L....
Tipo: Info:eu-repo/semantics/article Palavras-chave: AFLP; Cassia; ISSR; Molecular phylogeny; RAPD.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062011000100026
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ITS-rDNA phylogeny of Colletotrichum spp. causal agent of apple Glomerella leaf spot Ciência Rural
Giaretta,Diorvania Ribeiro; Bogo,Amauri; Coelho,Cileide Maria Medeiros; Guidolin,Altamir Frederico; Dantas,Adriana Cibele de Mesquita; Gomes,Eliane Aparecida.
Several diseases have affected apple production, among them there is Glomerella leaf spot (GLS) caused by Colletotrichum spp. The first report of this disease in apple was in plants nearby citrus orchards in São Paulo State, Brazil. The origin of this disease is still not clear, and studies based on the molecular phylogeny could relate the organisms evolutionarily and characterize possible mechanisms of divergent evolution. The amplification of 5.8S-ITS (Internal Transcribed Spacer) of rDNA of 51 pathogenic Colletotrichum spp. isolates from apples, pineapple guava and citrus produced one fragment of approximately 600 bases pairs (bp) for all the isolates analyzed. The amplified fragments were cleaved with restriction enzymes, and fragments from 90 to 500bp...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Pineapple guava; Citrus; Molecular phylogeny; In silico; Phylogenetic tree.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782010000400010
Registros recuperados: 57
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