干旱区生态环境知识资源中心(Arid): Intraspecific divergences and phylogeography of Panzerina lanata (Lamiaceae) in northwest China

Arid

DOI	10.7717/peerj.6264
	Intraspecific divergences and phylogeography of Panzerina lanata (Lamiaceae) in northwest China
	Zhao, Yanfen 1,2; Zhang, Hongxiang 1; Pan, Borong 1; Zhang, Mingli 1
通讯作者	Pan, Borong
来源期刊	PEERJ
ISSN	2167-8359
出版年	2019
卷号	7
英文摘要	Climatic fluctuations during the Quaternary significantly affect many species in their intraspecific divergence and population structure across northwest China. In order to investigate the impact of climate change on herbaceous plants, we studied Panzerina lanata (Lamiaceae), a widely distributed species. Sequences of two chloroplast DNA (cpDNA) intergenic spacers (trnH-psbA and rpoB-trnC) and a nuclear ribosomal region (nrDNA, ITS) were generated from 27 populations of Panzerina lanata and resulted in the identification of seven chloroplast haplotypes and thirty-two nuclear haplotypes. We applied AMOVA, neutrality test and mismatch distribution analysis to estimate genetic differentiation and demographic characteristics. The divergence times of the seven cpDNA haplotypes were estimated using BEAST. Our results revealed high levels of genetic diversity (cpDNA: H cp = 0.6691, H-T = 0.673; nrDNA: H nr = 0.5668, H-T = 0.577). High level of genetic differentiation (G(ST) = 0.950) among populations was observed in the cpDNA sequences, while the genetic differentiation values (GST = 0.348) were low in nuclear sequences. AMOVA results revealed major genetic variation among the three groups: northern, central, and eastern group. However, the genetic differentiation in ITS data was not found. The species distribution modeling and demographic analysis indicated that P. lanata had not experienced recent range expansion. The occurrence of divergence between seven cpDNA haplotypes, probably during Pleistocene, coincides with aridification and expansion of the desert across northwest China that resulted in species diversification and habitat fragmentation. In addition, we discovered that the deserts and the Helan Mountains acted as effective geographic barriers that promoting the intraspecific diversity of P. lanata.
英文关键词	Intraspecific divergences Aridification Panzerina lanata Desert expansion Northwest China
类型	Article
语种	英语
国家	Peoples R China
开放获取类型	gold, Green Published
收录类别	SCI-E
WOS记录号	WOS:000456675900003
WOS关键词	QINGHAI-TIBET PLATEAU ; POPULATION-GROWTH ; GENETIC-STRUCTURE ; PLANT ; CHLOROPLAST ; CLIMATE ; REFUGIA ; MITOCHONDRIAL ; PHYLOGENY ; DISPERSAL
WOS类目	Multidisciplinary Sciences
WOS研究方向	Science & Technology - Other Topics
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/2XILL650/217896
作者单位	1.Chinese Acad Sci, Xinjiang Inst Ecol & Geog, Key Lab Biogeog & Bioresource Arid Land, Urumqi, Xinjiang, Peoples R China; 2.Univ Chinese Acad Sci, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Zhao, Yanfen,Zhang, Hongxiang,Pan, Borong,et al. Intraspecific divergences and phylogeography of Panzerina lanata (Lamiaceae) in northwest China[J]. 中国科学院新疆生态与地理研究所,2019,7.
APA	Zhao, Yanfen,Zhang, Hongxiang,Pan, Borong,&Zhang, Mingli.(2019).Intraspecific divergences and phylogeography of Panzerina lanata (Lamiaceae) in northwest China.PEERJ,7.
MLA	Zhao, Yanfen,et al."Intraspecific divergences and phylogeography of Panzerina lanata (Lamiaceae) in northwest China".PEERJ 7(2019).