Repeated Range Expansion and Glacial Endurance of Potentilla glabra (Rosaceae) in the Qinghai-Tibetan Plateau

NWIPB OpenIR

	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/363003/51145
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).