Phylogeography of the Alpine salamander, Salamandra atra (Salamandridae) and the influence of the Pleistocene climatic oscillations on population divergence
被引:36
作者:
Riberon, A
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机构:Univ Grenoble 1, Lab Biol Populat Altitude, CNRS, UMR 5553, F-38041 Grenoble 9, France
Riberon, A
Miaud, C
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机构:Univ Grenoble 1, Lab Biol Populat Altitude, CNRS, UMR 5553, F-38041 Grenoble 9, France
Miaud, C
Grossenbacher, K
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机构:Univ Grenoble 1, Lab Biol Populat Altitude, CNRS, UMR 5553, F-38041 Grenoble 9, France
Grossenbacher, K
Taberlet, P
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机构:Univ Grenoble 1, Lab Biol Populat Altitude, CNRS, UMR 5553, F-38041 Grenoble 9, France
Taberlet, P
机构:
[1] Univ Grenoble 1, Lab Biol Populat Altitude, CNRS, UMR 5553, F-38041 Grenoble 9, France
[2] Univ Savoie, CISM, CNRS, UMR 5553, F-73376 Le Bourget Du Lac, France
[3] Nat Hist Museum Burgergemeinde Bern, CH-3005 Bern, Switzerland
Alpine arc;
cytochrome b;
glacial history;
mtDNA;
phylogeography;
population differentiation;
D O I:
10.1046/j.1365-294X.2001.01373.x
中图分类号:
Q5 [生物化学];
Q7 [分子生物学];
学科分类号:
071010 ;
081704 ;
摘要:
Fifty individuals of the endemic Alpine salamander, Salamandra atra, representing 13 populations throughout the range of the two currently recognized subspecies, atra and aurorae, were examined for sequence variation in a large portion (1050 bp) of the mitochondrial cytochrome b gene. We revealed a large number of mitochondrial DNA (mtDNA) haplotypes (10). Interpopulation sequence divergence was very low, ranging from 0 to 3.1%. The relationships among haplotypes were poorly resolved. The divergence time estimate between several mtDNA haplotypes suggested a pre-Pleistocene differentiation approximately 3 million years ago. Moreover, the impact of the Pleistocene glaciations on the phylogeographical patterns appears to have been secondary, although a somewhat reduced genetic variability was found in populations living in areas that were directly affected by the glaciation.