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Concordance between phylogeographical and biogeographical patterns in the Brazilian Cerrado: diversification of the endemic tree Dalbergia miscolobium (Fabaceae)

Novaes, Renan Milagres Lage ; Ribeiro, Renata Acácio ; Lemos-Filho, José Pires ; Lovato, Maria Bernadete Salamin, Nicolas

PloS one, 2013-12, Vol.8 (12), p.e82198-e82198 [Periódico revisado por pares]

United States: Public Library of Science

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  • Título:
    Concordance between phylogeographical and biogeographical patterns in the Brazilian Cerrado: diversification of the endemic tree Dalbergia miscolobium (Fabaceae)
  • Autor: Novaes, Renan Milagres Lage ; Ribeiro, Renata Acácio ; Lemos-Filho, José Pires ; Lovato, Maria Bernadete
  • Salamin, Nicolas
  • Assuntos: Biodiversity ; Biogeography ; Biological diversity ; Brazil ; Chloroplast DNA ; Climate change ; Dalbergia ; Demographics ; Deoxyribonucleic acid ; Divergence ; DNA ; DNA sequencing ; DNA structure ; Ecology ; Ecosystems ; Evolution ; Expansion ; Fabaceae ; Fabaceae - classification ; Fabaceae - genetics ; Gene sequencing ; Genetic aspects ; Genetic diversity ; Genetic Variation ; Haplotypes ; Phylogeography ; Pleistocene ; Pliocene ; Population growth ; Population structure ; Rosewoods ; Spacer ; Spatial distribution ; Species ; Studies ; Trees ; Uniqueness
  • É parte de: PloS one, 2013-12, Vol.8 (12), p.e82198-e82198
  • Notas: ObjectType-Article-1
    SourceType-Scholarly Journals-1
    ObjectType-Feature-2
    content type line 23
    Conceived and designed the experiments: JPLF MBL. Performed the experiments: RAR. Analyzed the data: RMLN RAR. Contributed reagents/materials/analysis tools: JPLF MBL. Wrote the paper: RMLN RAR JPLF MBL. performed sampling trips and interpreted the data: JPLF MBL RAR RMLN.
    Competing Interests: The authors have declared that no competing interests exist.
  • Descrição: Few studies have addressed the phylogeography of species of the Cerrado, the largest savanna biome of South America. Here we aimed to investigate the phylogeographical structure of Dalbergia miscolobium, a widespread tree from the Cerrado, and to verify its concordance with plant phylogeographical and biogeographical patterns so far described. A total of 287 individuals from 32 populations were analyzed by sequencing the trnL intron of the chloroplast DNA and the internal transcribed spacer of the nuclear ribosomal DNA. Analysis of population structure and tests of population expansion were performed and the time of divergence of haplotypes was estimated. Twelve and 27 haplotypes were identified in the cpDNA and nrDNA data, respectively. The star-like network configuration and the mismatch distributions indicated a recent spatial and demographic expansion of the species. Consistent with previous tree phylogeographical studies of Cerrado trees, the cpDNA also suggested a recent expansion towards the southern Cerrado. The diversity of D. miscolobium was widespread but high levels of genetic diversity were found in the Central Eastern and in the southern portion of Central Western Cerrado. The combined analysis of cpDNA and nrDNA supported a phylogeographic structure into seven groups. The phylogeographical pattern showed many concordances with biogeographical and phylogeographical studies in the Cerrado, mainly with the Cerrado phytogeographic provinces superimposed to our sampling area. The data reinforced the uniqueness of Northeastern and Southeastern Cerrados and the differentiation between Eastern and Western Central Cerrados. The recent diversification of the species (estimated between the Pliocene and the Pleistocene) and the 'genealogical concordances' suggest that a shared and persistent pattern of species diversification might have been present in the Cerrado over time. This is the first time that an extensive 'genealogical concordance' between phylogeographic and phytogeographic patterns is shown for the Cerrado biome.
  • Editor: United States: Public Library of Science
  • Idioma: Inglês
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  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

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