干旱区生态环境知识资源中心(Arid): Phylogeography of Ixiolirion songaricum, a spring ephemeral species endemic to Northwest China

Arid

DOI	10.1007/s00606-018-1563-7
	Phylogeography of Ixiolirion songaricum, a spring ephemeral species endemic to Northwest China
	Li, Yan1,2 ; Zhang, Xue-Ni 1,2; Lv, Guang-Hui1,2
通讯作者	Lv, Guang-Hui
来源期刊	PLANT SYSTEMATICS AND EVOLUTION
ISSN	0378-2697
EISSN	2199-6881
出版年	2019
卷号	305 期号:3 页码:205-221
英文摘要	Past geological and climatic changes have promoted shifts in both intraspecific differentiation and distribution ranges for many desert plants, though little is known about the effects of these changes specifically on spring ephemerals in Northwest China. In the present study, we aimed to survey the population structure and phylogeographic history of an endemic spring ephemeral species, Ixiolirion songaricum P. Yan in Northwest China. We sequenced the nITS and two ptDNA fragments (psbB-psbH and ycf6-psbM) for 265 individuals from 15 populations across the entire range. Eight nITS ribotypes and eleven plastid chlorotypes were identified, with three of them dominant. A significant phylogeographic structure was detected for the species in which two larger, distinct phylogeographic lineages were identified. A high proportion of the total genetic variation existed between populations and between the two lineages. The species had undergone a sudden range expansion in the late Quaternary, which might have been driven by an interglacial warm, humid climate following the largest Pleistocene glaciation period in Northwest China. The ecological niche modeling suggested the species experienced continuous shrinkage of potential range since the last interglacial, which is distinct from other desert plants. Overall, our results indicated that climate change associated with the Quaternary greatly promoted differentiation of I. songaricum. The shift in population distribution was likely driven by increasing aridity in Xinjiang during the Quaternary.
英文关键词	Central Asia Climate change Demographic dynamic Quaternary
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000459488100003
WOS关键词	GENETIC-STRUCTURE ; TIBETAN PLATEAU ; PHENOTYPIC ASSOCIATIONS ; CLIMATIC OSCILLATIONS ; HISTORICAL DEMOGRAPHY ; TIANSHAN MOUNTAINS ; CLADISTIC-ANALYSIS ; POPULATION-GROWTH ; TARIM BASIN ; DESERT
WOS类目	Plant Sciences ; Evolutionary Biology
WOS研究方向	Plant Sciences ; Evolutionary Biology
来源机构	新疆大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/218057
作者单位	1.Xinjiang Univ, Key Lab Oasis Ecol, Urumqi, Peoples R China; 2.Xinjiang Univ, Inst Arid Ecol & Environm, Urumqi, Peoples R China
推荐引用方式 GB/T 7714	Li, Yan,Zhang, Xue-Ni,Lv, Guang-Hui. Phylogeography of Ixiolirion songaricum, a spring ephemeral species endemic to Northwest China[J]. 新疆大学,2019,305(3):205-221.
APA	Li, Yan,Zhang, Xue-Ni,&Lv, Guang-Hui.(2019).Phylogeography of Ixiolirion songaricum, a spring ephemeral species endemic to Northwest China.PLANT SYSTEMATICS AND EVOLUTION,305(3),205-221.
MLA	Li, Yan,et al."Phylogeography of Ixiolirion songaricum, a spring ephemeral species endemic to Northwest China".PLANT SYSTEMATICS AND EVOLUTION 305.3(2019):205-221.