干旱区生态环境知识资源中心(Arid): Comparative evolutionary history of two closely related desert plant, Convolvulus tragacanthoide and Convolvulus gortschakovii (Convolvulaceae) from northwest China

Arid

DOI	10.1002/ece3.9355
	Comparative evolutionary history of two closely related desert plant, Convolvulus tragacanthoide and Convolvulus gortschakovii (Convolvulaceae) from northwest China
	Jia, Shuwen; Xu, Lina; Geng, Xiaoxiao; Zhang, Hongxiang
通讯作者	Jia, SW
来源期刊	ECOLOGY AND EVOLUTION
ISSN	2045-7758
出版年	2022
卷号	12 期号:9
英文摘要	Desert ecosystems are one of the most fragile ecosystems on Earth. The study of the effects of paleoclimatic and geological changes on genetic diversity, genetic structure, and species differentiation of desert plants is not only helpful in understanding the strategies of adaptation of plants to arid habitats, but can also provide reference for the protection and restoration of vegetation in desert ecosystem. Northwest China is an important part of arid regions in the northern hemisphere. Convolvulus tragacanthoides and Convolvulus gortschakovii are closely related and have similar morphology. Through our field investigation, we found that the annual precipitation of the two species distribution areas is significantly different. Thus, C. tragacanthoides and C. gortschakovii provide an ideal comparative template to investigate the evolutionary processes of closely related species, which have adapted to different niches in response to changes in paleogeography and paleoclimate in northwest China. In this study, we employed phylogeographical approaches (two cpDNA spacers: rpl14-rpl36 and trnT-trnY) and species distribution models to trace the demographic history of C. tragacanthoides and C. gortschakovii, two common subshrubs and small shrubs in northwest China. The results showed the following: (1) Populations of C. tragacanthoides in northwest China were divided into three groups: Tianshan Mountains-Ili Valley, west Yin Mountains-Helan Mountains-Qinglian Mountains, and Qinling Mountains-east Yin Mountains. There was a strong correlation between the distribution of haplotypes and the floristic subkingdom. The three groups corresponded to the Eurasian forest subkingdom, Asian desert flora subkingdom, and Sino-Japanese floristic regions, respectively. Thus, environmental differences among different flora may lead to the genetic differentiation of C. tragacanthoides in China. (2) The west Yin Mountains-Helan Mountains-Qinglian Mountains, and Qinling Mountains-east Yin Mountains were thought to form the ancestral distribution range of C. tragacanthoides. (3) C. tragacanthoides and C. gortschakovii adopted different strategies to cope with the Pleistocene glacial cycle. Convolvulus tragacanthoides contracted to the south during the glacial period and expanded to the north during the interglacial period; and there was no obvious north-south expansion or contraction of C. gortschakovii during the glacial cycle. (4) The interspecific variation of C. tragacanthoides and C. gortschakovii was related to the orogeny in northwest China caused by the uplift of the Tibetan Plateau during Miocene. (5) The 200 mm precipitation line formed the dividing line between the niches occupied by C. tragacanthoides and C. gortschakovii, respectively. In this study, from the perspective of precipitation, the impact of the formation of the summer monsoon limit line on species divergence and speciation is reported, which provides a new perspective for studying the response mechanism of species to the formation of the summer monsoon line, and also provides a clue for predicting how desert plants respond to future environmental changes.
英文关键词	200 mm precipitation line climate change desert plants Phylogeographic structure population dynamics
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:000857893200001
WOS关键词	GYMNOCARPOS-PRZEWALSKII CARYOPHYLLACEAE ; SEQUENCE VARIATION ; CLIMATE-CHANGE ; ARID REGIONS ; DIVERSIFICATION ; DNA ; PHYLOGEOGRAPHY ; INFERENCE ; TIANSHAN ; UPLIFT
WOS类目	Ecology ; Evolutionary Biology
WOS研究方向	Environmental Sciences & Ecology ; Evolutionary Biology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/392381
推荐引用方式 GB/T 7714	Jia, Shuwen,Xu, Lina,Geng, Xiaoxiao,et al. Comparative evolutionary history of two closely related desert plant, Convolvulus tragacanthoide and Convolvulus gortschakovii (Convolvulaceae) from northwest China[J],2022,12(9).
APA	Jia, Shuwen,Xu, Lina,Geng, Xiaoxiao,&Zhang, Hongxiang.(2022).Comparative evolutionary history of two closely related desert plant, Convolvulus tragacanthoide and Convolvulus gortschakovii (Convolvulaceae) from northwest China.ECOLOGY AND EVOLUTION,12(9).
MLA	Jia, Shuwen,et al."Comparative evolutionary history of two closely related desert plant, Convolvulus tragacanthoide and Convolvulus gortschakovii (Convolvulaceae) from northwest China".ECOLOGY AND EVOLUTION 12.9(2022).