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Phylogeography of the cactophilic species Drosophila gouveai: demographic events and divergence timing in dry vegetation enclaves in eastern Brazil

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dc.contributor.author Moraes, Evandro M.
dc.contributor.author Yotoko, Karla S. C.
dc.contributor.author Manfrin, Maura H.
dc.contributor.author Solferini, Vera N.
dc.contributor.author Sene, Fábio M.
dc.date.accessioned 2018-12-18T14:37:37Z
dc.date.available 2018-12-18T14:37:37Z
dc.date.issued 2009-11
dc.identifier.issn 1365-2699
dc.identifier.uri http://dx.doi.org/10.1111/j.1365-2699.2009.02145.x
dc.identifier.uri http://www.locus.ufv.br/handle/123456789/22844
dc.description.abstract The aim of this study was to assess the causal mechanisms underlying populational subdivision in Drosophila gouveai, a cactophilic species associated with xeric vegetation enclaves in eastern Brazil. A secondary aim was to investigate the genetic effects of Pleistocene climatic fluctuations on these environments. Dry vegetation enclaves within the limits of the Cerrado domain in eastern Brazil. We determined the mitochondrial DNA haplotypes of 55 individuals (representing 12 populations) based on sequence data of a 483‐bp fragment from the cytochrome c oxidase subunit II (COII) gene. Phylogenetic and coalescent analyses were used to test for the occurrence of demographic events and to infer the time of divergence amongst genetically independent groups. Our analyses revealed the existence of two divergent subclades (G1 and G2) plus an introgressed clade restricted to the southernmost range of D. gouveai. Subclades G1 and G2 displayed genetic footprints of range expansion and segregated geographical distributions in south‐eastern and some central highland regions, east and west of the Paraná River valley. Molecular dating indicated that the main demographic and diversification events occurred in the late to middle Pleistocene. The phylogeographical and genetic patterns observed for D. gouveai in this study are consistent with changes in the distribution of dry vegetation in eastern Brazil. All of the estimates obtained by molecular dating indicate that range expansion and isolation pre‐dated the Last Glacial Maximum, occurring during the late to middle Pleistocene, and were probably triggered by climatic changes during the Pleistocene. The current patchy geographical distribution and population subdivision in D. gouveai is apparently closely linked to these past events. en
dc.format pdf pt-BR
dc.language.iso eng pt-BR
dc.publisher Journal of Biogeography pt-BR
dc.relation.ispartofseries Volume 36, Issue 11, Pages 2136- 2147, November 2009 pt-BR
dc.rights Open Access pt-BR
dc.subject Cactaceae pt-BR
dc.subject Cerrado pt-BR
dc.subject Diptera pt-BR
dc.subject Drosophila pt-BR
dc.subject Phylogeography pt-BR
dc.subject Pleistocene pt-BR
dc.subject South America pt-BR
dc.subject Xerophytic plants pt-BR
dc.title Phylogeography of the cactophilic species Drosophila gouveai: demographic events and divergence timing in dry vegetation enclaves in eastern Brazil en
dc.type Artigo pt-BR


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  • Artigos [572]
    Artigos Técnico-científicos na área de Biologia Geral

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