Is Nematocharax (Actinopterygii, Characiformes) a monotypic fish genus?

dc.contributor.authorBarreto, Silvia Britto
dc.contributor.authorNunes, Lorena Andrade
dc.contributor.authorSilva, Andre Teixeira da [UNESP]
dc.contributor.authorJuca-Chagas, Ricardo
dc.contributor.authorDiniz, Debora
dc.contributor.authorSampaio, Iracilda
dc.contributor.authorSchneider, Horacio
dc.contributor.authorAntunes de Mello Affonso, Paulo Roberto
dc.contributor.institutionUniv Estadual Sudoeste Bahia
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniv Fed Para
dc.date.accessioned2018-11-26T15:31:34Z
dc.date.available2018-11-26T15:31:34Z
dc.date.issued2016-10-01
dc.description.abstractThe combination of DNA barcodes and geometric morphometrics is useful to discriminate taxonomically controversial species, providing more precise estimates of biodiversity. Therefore, our goal was to assess the genetic and morphometric diversity in Nematocharax, a controversial monotypic and sexually dimorphic genus of Neotropical fish, based on sequencing of cytochrome c oxidase subunit I (COI) and morphometric analyses in seven populations of N. venustus from coastal rivers in Brazil. The average pairwise intrapopulation divergence in COI ranged from 0 to 2.2%, while the average pairwise interpopulation divergence varied from 0 to 7.5%. The neighbour-joining (NJ) tree resulted in five genetic groups (bootstrap >= 97%), which correspond to the five clusters delimited by the BIN System, GMYC, and bPTP, indicating that there might be at least five species (or OTUs) within Nematocharax. Morphometric differences among these genetic lineages were also identified. Apparently, sexual selection, restricted dispersal, and geographic isolation might have acted synergistically to cause the evolutionary split of populations. These data challenge the current view that Nematocharax is a monotypic genus inasmuch as evolutionarily significant units or even distinguished species were identified. Therefore, we recommend that the highly impacted coastal basins in northeastern Brazil should be prioritized in conservation plans.en
dc.description.affiliationUniv Estadual Sudoeste Bahia, Dept Biol Sci, Ave Jose Moreira Sobrinho, BR-45206190 Jequie, BA, Brazil
dc.description.affiliationUniv Estadual Paulista, Dept Zool, Biosci Inst, Ave 24-A,1515 Bela Vista, BR-13506970 Sao Paulo, Brazil
dc.description.affiliationUniv Fed Para, Inst Coastal Studies, Alameda Leandro Ribeiro S-N, BR-68600000 Braganca, Para, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Dept Zool, Biosci Inst, Ave 24-A,1515 Bela Vista, BR-13506970 Sao Paulo, Brazil
dc.description.sponsorshipFundacao de Amparo a Pesquisa do Estado da Bahia (FAPESB)
dc.description.sponsorshipIdFundacao de Amparo a Pesquisa do Estado da Bahia (FAPESB): PNE0019/2011
dc.description.sponsorshipIdFundacao de Amparo a Pesquisa do Estado da Bahia (FAPESB): RED0009/2013
dc.format.extent851-865
dc.identifierhttp://dx.doi.org/10.1139/gen-2015-0166
dc.identifier.citationGenome. Ottawa: Canadian Science Publishing, Nrc Research Press, v. 59, n. 10, p. 851-865, 2016.
dc.identifier.doi10.1139/gen-2015-0166
dc.identifier.fileWOS000385852100007.pdf
dc.identifier.issn0831-2796
dc.identifier.urihttp://hdl.handle.net/11449/159143
dc.identifier.wosWOS:000385852100007
dc.language.isoeng
dc.publisherCanadian Science Publishing, Nrc Research Press
dc.relation.ispartofGenome
dc.relation.ispartofsjr0,655
dc.rights.accessRightsAcesso aberto
dc.sourceWeb of Science
dc.subjectCOI
dc.subjectDNA barcoding
dc.subjectichthyofauna
dc.subjectgeometric morphometrics
dc.subjectspecies delimitation
dc.titleIs Nematocharax (Actinopterygii, Characiformes) a monotypic fish genus?en
dc.typeArtigo
dcterms.rightsHolderCanadian Science Publishing, Nrc Research Press
unesp.author.orcid0000-0002-2137-4656[6]
unesp.author.orcid0000-0002-5987-6395[7]

Arquivos

Pacote Original
Agora exibindo 1 - 1 de 1
Carregando...
Imagem de Miniatura
Nome:
WOS000385852100007.pdf
Tamanho:
3.06 MB
Formato:
Adobe Portable Document Format
Descrição:

Coleções