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Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/11449/20119
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dc.contributor.authorBechara, Marcelo D.-
dc.contributor.authorMoretzsohn, Marcio C.-
dc.contributor.authorPalmieri, Darío Abel-
dc.contributor.authorMonteiro, Jomar P.-
dc.contributor.authorBacci Junior, Mauricio-
dc.contributor.authorMartins, Joaquim-
dc.contributor.authorValls, Jose F. M.-
dc.contributor.authorLopes, Catalina R.-
dc.contributor.authorGimenes, Marcos A.-
dc.date.accessioned2013-09-30T18:37:55Z-
dc.date.accessioned2014-05-20T13:56:18Z-
dc.date.available2013-09-30T18:37:55Z-
dc.date.available2014-05-20T13:56:18Z-
dc.date.issued2010-11-19-
dc.identifierhttp://dx.doi.org/10.1186/1471-2229-10-255-
dc.identifier.citationBmc Plant Biology. London: Biomed Central Ltd., v. 10, p. 12, 2010.-
dc.identifier.issn1471-2229-
dc.identifier.urihttp://hdl.handle.net/11449/20119-
dc.description.abstractBackground: The genus Arachis comprises 80 species and it is subdivided into nine taxonomic sections (Arachis, Caulorrhizae, Erectoides, Extranervosae, Heteranthae, Procumbentes, Rhizomatosae, Trierectoides, and Triseminatae). This genus is naturally confined to South America and most of its species are native to Brazil. In order to provide a better understanding of the evolution of the genus, we reconstructed the phylogeny of 45 species using the variation observed on nucleotide sequences in internal transcribed spacer regions (ITS1 and ITS2) and 5.8 S of nuclear ribosomal DNA.Results: Intraspecific variation was detected, but in general it was not enough to place accessions of the same species in different clades. Our data support the view that Arachis is a monophyletic group and suggested Heteranthae as the most primitive section of genus Arachis. The results confirmed the circumscriptions of some sections (Caulorrhizae, Extranervosae), but raised questions about others. Sections Erectoides, Trierectoides and Procumbentes were not well defined, while sections Arachis and Rhizomatosae seem to include species that could be moved to different sections. The division of section Arachis into A and B genome species was also observed in the phylogenetic tree and these two groups of species may not have a monophyletic origin. The 2n = 2x = 18 species of section Arachis (A. praecox, A. palustris and A. decora) were all placed in the same clade, indicating they are closely related to each other, and their genomes are more related to B genome than to the A genome. Data also allowed insights on the origin of tetraploid A. glabrata, suggesting rhizome appeared twice within the genus and raising questions about the placement of that species in section Rhizomatosae.Conclusion: The main clades established in this study in general agreed with many other studies that have used other types of evidences and sets of species, being some of them included in our study and some not. Thus, the relationships established can be a useful framework for future systematic reviews of genus Arachis and for the selection of species to pre-breeding programs.en
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
dc.format.extent12-
dc.language.isoeng-
dc.publisherBiomed Central Ltd.-
dc.sourceWeb of Science-
dc.titlePhylogenetic relationships in genus Arachis based on ITS and 5.8S rDNA sequencesen
dc.typeoutro-
dc.contributor.institutionEmpresa Brasileira de Pesquisa Agropecuária (EMBRAPA)-
dc.contributor.institutionUniversidade de Marília (UNIMAR)-
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)-
dc.description.affiliationEmpresa Brasileira de Pesquisa Agropecuária (EMBRAPA) Recursos Genet & Biotecnol, BR-70770917 Brasilia, DF, Brazil-
dc.description.affiliationUniv Marilia, UNIMAR, Marilia, SP, Brazil-
dc.description.affiliationUniv Estadual Paulista, Dept Ciencias Biol, Fac Ciencias & Letras, UNESP, BR-19806900 Assis, SP, Brazil-
dc.description.affiliationUniv Estadual Paulista, UNESP, Inst Biociencias, Dept Genet, BR-18618000 Botucatu, SP, Brazil-
dc.description.affiliationUniv Estadual Paulista, Inst Biociencias, Dept Bioquim & Microbiol, UNESP, BR-13506900 Rio Claro, SP, Brazil-
dc.description.affiliationUniv Estadual Paulista, Inst Biociencias, Ctr Estudos Insetos Sociais, UNESP, BR-13506900 Rio Claro, SP, Brazil-
dc.description.affiliationUnespUniv Estadual Paulista, Dept Ciencias Biol, Fac Ciencias & Letras, UNESP, BR-19806900 Assis, SP, Brazil-
dc.description.affiliationUnespUniv Estadual Paulista, UNESP, Inst Biociencias, Dept Genet, BR-18618000 Botucatu, SP, Brazil-
dc.description.affiliationUnespUniv Estadual Paulista, Inst Biociencias, Dept Bioquim & Microbiol, UNESP, BR-13506900 Rio Claro, SP, Brazil-
dc.description.affiliationUnespUniv Estadual Paulista, Inst Biociencias, Ctr Estudos Insetos Sociais, UNESP, BR-13506900 Rio Claro, SP, Brazil-
dc.identifier.doi10.1186/1471-2229-10-255-
dc.identifier.wosWOS:000285349200001-
dc.rights.accessRightsAcesso aberto-
dc.identifier.fileWOS000285349200001.pdf-
dc.relation.ispartofBmc Plant Biology-
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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