Knowledge Management System of Northwest Institute of Plateau Biology, CAS
Repeated Range Expansion and Glacial Endurance of Potentilla glabra (Rosaceae) in the Qinghai-Tibetan Plateau | |
Wang, Liu-Yang ; Ikeda, Hiroshi ; Liu, Teng-Liang ; Wang, Yu-Jin ; Liu, Jian-Quan | |
2009-07-01 | |
发表期刊 | JOURNAL OF INTEGRATIVE PLANT BIOLOGY ; Wang, LY; Ikeda, H; Liu, TL; Wang, YJ; Liu, JQ.Repeated Range Expansion and Glacial Endurance of Potentilla glabra (Rosaceae) in the Qinghai-Tibetan Plateau,JOURNAL OF INTEGRATIVE PLANT BIOLOGY,2009,51(7):698-706 |
摘要 | To date, little is still known about how alpine species occurring in the Qinghai-Tibetan Plateau (QTP) responded to past climatic oscillations. Here, by using variations of the chloroplast trnT-L, we examined the genetic distribution pattern of 101 individuals of Potentilla glabra, comprising both the interior QTP and the plateau edge. Phylogenetic and network analyses of 31 recovered haplotypes identified three tentative clades (A, B and C). Analysis of molecular variance (amova) revealed that most of the genetic variability was found within populations (0.693), while differentiations between populations were obviously distinct (F(st) = 0.307). Two independent range expansions within clades A and B occurring at approximately 316 and 201 thousand years ago (kya) were recovered from the hierarchical mismatch analysis, and these two expansions were also confirmed by Fu's F(S) values and 'g' tests. However, distant distributions of clade C and private haplotypes from clades A and B suggest that they had survived the Last Glacial Maximum (LGM) and previous glaciers in situ since their origins. Our findings based on available limited samples support that multiple refugia of a few cold-enduring species had been maintained in the QTP platform during LGM and/or previous glacial stages.; To date, little is still known about how alpine species occurring in the Qinghai-Tibetan Plateau (QTP) responded to past climatic oscillations. Here, by using variations of the chloroplast trnT-L, we examined the genetic distribution pattern of 101 individuals of Potentilla glabra, comprising both the interior QTP and the plateau edge. Phylogenetic and network analyses of 31 recovered haplotypes identified three tentative clades (A, B and C). Analysis of molecular variance (amova) revealed that most of the genetic variability was found within populations (0.693), while differentiations between populations were obviously distinct (F(st) = 0.307). Two independent range expansions within clades A and B occurring at approximately 316 and 201 thousand years ago (kya) were recovered from the hierarchical mismatch analysis, and these two expansions were also confirmed by Fu's F(S) values and 'g' tests. However, distant distributions of clade C and private haplotypes from clades A and B suggest that they had survived the Last Glacial Maximum (LGM) and previous glaciers in situ since their origins. Our findings based on available limited samples support that multiple refugia of a few cold-enduring species had been maintained in the QTP platform during LGM and/or previous glacial stages. |
文献类型 | 期刊论文 |
条目标识符 | http://210.75.249.4/handle/363003/56225 |
专题 | 中国科学院西北高原生物研究所 |
推荐引用方式 GB/T 7714 | Wang, Liu-Yang,Ikeda, Hiroshi,Liu, Teng-Liang,et al. Repeated Range Expansion and Glacial Endurance of Potentilla glabra (Rosaceae) in the Qinghai-Tibetan Plateau[J]. JOURNAL OF INTEGRATIVE PLANT BIOLOGY, Wang, LY; Ikeda, H; Liu, TL; Wang, YJ; Liu, JQ.Repeated Range Expansion and Glacial Endurance of Potentilla glabra (Rosaceae) in the Qinghai-Tibetan Plateau,JOURNAL OF INTEGRATIVE PLANT BIOLOGY,2009,51(7):698-706,2009. |
APA | Wang, Liu-Yang,Ikeda, Hiroshi,Liu, Teng-Liang,Wang, Yu-Jin,&Liu, Jian-Quan.(2009).Repeated Range Expansion and Glacial Endurance of Potentilla glabra (Rosaceae) in the Qinghai-Tibetan Plateau.JOURNAL OF INTEGRATIVE PLANT BIOLOGY. |
MLA | Wang, Liu-Yang,et al."Repeated Range Expansion and Glacial Endurance of Potentilla glabra (Rosaceae) in the Qinghai-Tibetan Plateau".JOURNAL OF INTEGRATIVE PLANT BIOLOGY (2009). |
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