干旱区生态环境知识资源中心(Arid): Insights into the aridification history of Central Asian Mountains and international conservation strategy from the endangered wild apple tree

Arid

DOI	10.1111/jbi.13999
	Insights into the aridification history of Central Asian Mountains and international conservation strategy from the endangered wild apple tree
	Zhang, Hong-Xiang; Li, Xiao-Shuang; Wang, Jian-Cheng; Zhang, Dao-Yuan
通讯作者	Zhang, DY
来源期刊	JOURNAL OF BIOGEOGRAPHY
ISSN	0305-0270
EISSN	1365-2699
英文摘要	Aim Evolutionary processes of mountain plants in arid lands remain poorly understood. Here, we investigate population genomics of the endangered wild apple tree to interpret the effects of long-term aridification on plant diversification and demographical history in Central Asian Mountains. Location The Tianshan Mountains, spanning north-western China, Kazakhstan, Kyrgyzstan and Tajikistan. Taxon Malus sieversii (Rosaceae) Methods Using genome-wide single nucleotide polymorphisms, we assessed genetic diversity and genetic structure of 15 populations across the species' range. Demographical history was simulated with approximate Bayesian computation and species distribution modelling. We used a general linear model to identify key environmental factors affecting population genetic diversity and structure. Results We separated the 15 populations into three groups: the eastern group of western Junggar Mountains in China; the central group of the Ili Valley, the Talas Alatau Mountains in Kazakhstan and Kyrgyzstan; and the western group of Tajikistan and the Dzungarian Alatau in Kazakhstan. Central populations had higher genetic diversity and effective population size than eastern and western populations. The three groups split at the late Miocene and subsequently experienced extensive admixture. We detected a significant pattern of isolation by distance, but not isolation by environment, among these populations. Population genetic diversity was significantly associated with longitudinal and current environmental gradients. Main conclusions Long-term aridification promoted distribution fragmentation and plant lineage divergence of relict broad-leaved forests in Central Asian Mountains. Both geographical isolation and environmental heterogeneity shaped spatial patterns in genetic variation among M. sieversii populations. To maintain genetic integrity, we propose the establishment of an international network for the conservation of this endangered wild apple tree.
英文关键词	approximate Bayesian computation conservation units fragmentation lineage admixture Malus phylogeography population genomics Tianshan Mountains
类型	Article ; Early Access
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000586265800001
WOS关键词	GENETIC-STRUCTURE ; COMPARATIVE PHYLOGEOGRAPHY ; POPULATION-STRUCTURE ; HENGDUAN MOUNTAINS ; GLACIAL REFUGIA ; MALUS-SIEVERSII ; TOOL SET ; GENOME ; SEQUENCE ; LOESS
WOS类目	Ecology ; Geography, Physical
WOS研究方向	Environmental Sciences & Ecology ; Physical Geography
来源机构	中国科学院新疆生态与地理研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/328442
作者单位	[Zhang, Hong-Xiang; Li, Xiao-Shuang; Wang, Jian-Cheng; Zhang, Dao-Yuan] Chinese Acad Sci, Xinjiang Inst Ecol & Geog, State Key Lab Desert & Oasis Ecol, Urumqi 830011, Peoples R China; [Wang, Jian-Cheng; Zhang, Dao-Yuan] Chinese Acad Sci, Turpan Eremophytes Bot Garden, Turpan, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Hong-Xiang,Li, Xiao-Shuang,Wang, Jian-Cheng,et al. Insights into the aridification history of Central Asian Mountains and international conservation strategy from the endangered wild apple tree[J]. 中国科学院新疆生态与地理研究所.
APA	Zhang, Hong-Xiang,Li, Xiao-Shuang,Wang, Jian-Cheng,&Zhang, Dao-Yuan.
MLA	Zhang, Hong-Xiang,et al."Insights into the aridification history of Central Asian Mountains and international conservation strategy from the endangered wild apple tree".JOURNAL OF BIOGEOGRAPHY