a remarkable case of micro-endemism in laonastes aenigmamus (diatomyidae, rodentia) revealed by nuclear and mitochondrial dna sequence data的情况下在laonastes micro-endemism aenigmamus(diatomyidae啮齿目)揭示了核和线粒体dna序列数据.pdfVIP

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a remarkable case of micro-endemism in laonastes aenigmamus (diatomyidae, rodentia) revealed by nuclear and mitochondrial dna sequence data的情况下在laonastes micro-endemism aenigmamus(diatomyidae啮齿目)揭示了核和线粒体dna序列数据.pdf

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a remarkable case of micro-endemism in laonastes aenigmamus (diatomyidae, rodentia) revealed by nuclear and mitochondrial dna sequence data的情况下在laonastes micro-endemism aenigmamus(diatomyidae啮齿目)揭示了核和线粒体dna序列数据

A Remarkable Case of Micro-Endemism in Laonastes aenigmamus (Diatomyidae, Rodentia) Revealed by Nuclear and Mitochondrial DNA Sequence Data 1 2 3 4 Violaine Nicolas *, Vincent Herbreteau , Arnaud Couloux , Kham Keovichit , Bounneuang Douangboupha4, Jean-Pierre Hugot1 ´ ´ ´ 1 UMR CNRS 7205, Departement Systematique et Evolution, Museum National d’Histoire Naturelle, Paris, France, 2 IRD, UMR ESPACE-DEV, Montpellier, France, ´ 3 Genoscope, Centre National de Sequenc¸age, Evry, France, 4 National Agriculture And Forestry Research Institute (NAFRI), Vientiane, Lao PDR Abstract L. aenigmamus is endemic to the limestone formations of the Khammuan Province (Lao PDR), and is strongly specialized ecologically. From the survey of 137 individuals collected from 38 localities, we studied the phylogeography of this species using one mitochondrial (Cyt b) and two nuclear genes (BFIBR and GHR). Cyt b analyses reveal a strong mtDNA phylogeographical structure: 8 major geographical clades differing by 5–14% sequence divergence were identified, most of them corresponding to distinct karst areas. Nuclear markers display congruent results but with a less genetic structuring. Together, the data strongly suggest an inland insular model for Laonastes population structure. With 8 to 16 evolutionary significant units in a small area (about 200 650 km) this represents an exceptional example of micro-endemism. Our results suggest that L. aenigmamus may represent a complex of species and/or sub-species. The common ancestor of all Laonastes may have been widely distributed within the limestone formations of th