干旱区生态环境知识资源中心(Arid): Phylogeography Reveals Geographic and Environmental Factors Driving Genetic Differentiation of Populus sect. Turanga in Northwest China

Arid

DOI	10.3389/fpls.2021.705083
	Phylogeography Reveals Geographic and Environmental Factors Driving Genetic Differentiation of Populus sect. Turanga in Northwest China
	Gai, Zhongshuai; Zhai, Juntuan; Chen, Xiangxiang; Jiao, Peipei; Zhang, Shanhe; Sun, Jianhao; Qin, Rui; Liu, Hong; Wu, Zhihua; Li, Zhijun
通讯作者	Li, ZJ (corresponding author), Xinjiang Prod & Construct Grp, Key Lab Biol Resource Protect & Utilizat Tarim Ba, Alar, Peoples R China. ; Li, ZJ (corresponding author), Tarim Univ, Coll Life Sci, Alar, Peoples R China. ; Li, ZJ (corresponding author), Tarim Univ, Desert Poplar Res Ctr, Alar, Peoples R China. ; Wu, ZH (corresponding author), South Cent Univ Nationalities, Coll Life Sci, Hubei Prov Key Lab Protect & Applicat Special Pla, Wuhan, Peoples R China.
来源期刊	FRONTIERS IN PLANT SCIENCE
ISSN	1664-462X
出版年	2021
卷号	12
英文摘要	Populus sect. Turanga (hereafter referred to as Populus), including Populus euphratica and Populus pruinosa, are the predominant tree species in desert riparian forests in northwestern China. These trees play key roles in maintaining ecosystem balance, curbing desertification, and protecting biodiversity. However, the distribution area of Populus forests has been severely diminished and degraded in recent years due to increased habitat destruction and human activity. Understanding the genetic diversity among Populus individuals and populations is essential for designing conservation strategies, but comprehensive studies of their genetic diversity in northwest China are lacking. Here, we assessed the population structures and genetic diversity of 1,620 samples from 85 natural populations of Populus (59 P. euphratica and 26 P. pruinosa populations) covering all of northwestern China using 120 single nucleotide polymorphism (SNP) markers. Analysis of population structure revealed significant differentiation between these two sister species and indicated that strong geographical distribution patterns, a geographical barrier, and environmental heterogeneity shaped the extant genetic patterns of Populus. Both P. euphratica and P. pruinosa populations in southern Xinjiang had higher genetic diversity than populations in other clades, perhaps contributing to local geographic structure and strong gene flow. Analysis of molecular variance (AMOVA) identified 15% variance among and 85% variance within subpopulations. Mantel tests suggested that the genetic variation among P. euphratica and P. pruinosa populations could be explained by both geographical and environmental distance. The genetic diversity of P. euphratica showed a significant negative correlation with latitude and longitude and a positive correlation with various environmental factors, such as precipitation of warmest quarter and driest month, temperature seasonality, and annual mean temperature. These findings provide insights into how the genetic differentiation of endangered Populus species was driven by geographical and environmental factors, which should be helpful for designing strategies to protect these genetic resources in the future.
英文关键词	Populus euphratica Populus pruinosa population structure genetic diversity geographical and environmental factors
类型	Article
语种	英语
开放获取类型	Green Published, gold
收录类别	SCI-E
WOS记录号	WOS:000688472000001
WOS关键词	PRUINOSA SCHRENK ; EUPHRATICA OLIV. ; DIVERSITY ; POPLAR ; RIVER ; POPULATIONS ; DIVERGENCE ; CONTRIBUTE ; SIGNATURES ; SELECTION
WOS类目	Plant Sciences
WOS研究方向	Plant Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/363340
作者单位	[Gai, Zhongshuai; Zhai, Juntuan; Chen, Xiangxiang; Jiao, Peipei; Zhang, Shanhe; Sun, Jianhao; Li, Zhijun] Xinjiang Prod & Construct Grp, Key Lab Biol Resource Protect & Utilizat Tarim Ba, Alar, Peoples R China; [Gai, Zhongshuai; Zhai, Juntuan; Chen, Xiangxiang; Jiao, Peipei; Zhang, Shanhe; Sun, Jianhao; Li, Zhijun] Tarim Univ, Coll Life Sci, Alar, Peoples R China; [Gai, Zhongshuai; Zhai, Juntuan; Chen, Xiangxiang; Jiao, Peipei; Zhang, Shanhe; Sun, Jianhao; Li, Zhijun] Tarim Univ, Desert Poplar Res Ctr, Alar, Peoples R China; [Qin, Rui; Liu, Hong; Wu, Zhihua] South Cent Univ Nationalities, Coll Life Sci, Hubei Prov Key Lab Protect & Applicat Special Pla, Wuhan, Peoples R China
推荐引用方式 GB/T 7714	Gai, Zhongshuai,Zhai, Juntuan,Chen, Xiangxiang,et al. Phylogeography Reveals Geographic and Environmental Factors Driving Genetic Differentiation of Populus sect. Turanga in Northwest China[J],2021,12.
APA	Gai, Zhongshuai.,Zhai, Juntuan.,Chen, Xiangxiang.,Jiao, Peipei.,Zhang, Shanhe.,...&Li, Zhijun.(2021).Phylogeography Reveals Geographic and Environmental Factors Driving Genetic Differentiation of Populus sect. Turanga in Northwest China.FRONTIERS IN PLANT SCIENCE,12.
MLA	Gai, Zhongshuai,et al."Phylogeography Reveals Geographic and Environmental Factors Driving Genetic Differentiation of Populus sect. Turanga in Northwest China".FRONTIERS IN PLANT SCIENCE 12(2021).