Genetic diversity and structure of the endemic and endangered species Aristolochia delavayi growing along the Jinsha River

doi:10.1016/j.pld.2020.12.007

KIB OpenIR

	Genetic diversity and structure of the endemic and endangered species Aristolochia delavayi growing along the Jinsha River
	Yu,Yu-Long ; Wang,Hui-Chun ; Yu,Zhi-Xiang ; Schinnerl,Johann ; Tang,Rong ; Geng,Yu-Peng ; Chen,Gao
	2021
发表期刊	PLANT DIVERSITY
ISSN	2096-2703
卷号	43 期号:3 页码:225-233
摘要	The traditional medicinal plant, and endangered species Aristolochia delavayi (Aristolochiaceae) is an endemic species in China and occurs in the warm and dry areas along the Jinsha river. It is also a specific host of the larvae of Byasa daemonius, a vulnerable butterfly. In this study, 15 pairs of polymorphic microsatellite primers of A. delavayi were designed and screened based on the Simple Sequence Repeats (SSR) loci found by using the results of genome skimming. Based on these 15 SSR markers, the genetic diversity and structure of 193 individuals from ten natural populations were analyzed in detail. In comparison to other endemic and endangered plants in the region, the population of A. delavayi possess a relatively high genetic diversity (He = 0.550, I = 1.112). AMOVA analysis showed that 68.4% of the total genetic diversity was within populations and 31.6% of the variation occurred among populations. There was a significant genetic differentiation among natural populations of A. delavayi detectable, with low gene flow (Nm = 0.591). This might be attributed to geographical barriers and limited seed dispersal. To test the isolation by distance (IBD), we performed Mantel test, which showed a significant correlation between the geographic and genetic distances. In order to cope with the possible biases caused by IBD, we additionally performed Bayesian genetic cluster analyses and principal coordinate analysis (PCoA). The final cluster analysis revealed three groups with distinct geographical distribution. Habitat fragmentation and limited gene flow between these populations may be the main reasons for the current genetic structure. For conservation of this species, we suggest to divide its populations into three protection management units, with subsequent focus on the Yongsheng and Luquan populations which experienced a genetic bottleneck event in the past. Copyright (C) 2020 Kunming Institute of Botany, Chinese Academy of Sciences. Publishing services by Elsevier B.V. on behalf of KeAi Communications Co. Ltd.
关键词	Aristolochia delavayi Conservation biology Genetic diversity Genetic structure Microsatellites Genome skimming SMALL POPULATIONS PSESP DRY-HOT VALLEYS SYSTEM EVOLUTION PLANT CONSERVATION SOFTWARE DIFFERENTIATION IMPLEMENTATION FRAGMENTATION CONSEQUENCES
DOI	10.1016/j.pld.2020.12.007
WOS记录号	WOS:000661912800006
引用统计
文献类型	期刊论文
条目标识符	http://ir.kib.ac.cn/handle/151853/73674
专题	中国科学院昆明植物研究所
作者单位	1.Yunnan Univ, Sch Ecol & Environm Sci, Kunming 650091, Yunnan, Peoples R China 2.Chinese Acad Sci, Kunming Inst Bot, Yunnan Key Lab Integrat Conservat Plant Species E, Kunming 650201, Yunnan, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Sichuan Panzhihua Cycas Natl Nat Reserver Bur, Panzhihua 617000, Peoples R China 5.Univ Vienna, Dept Bot & Biodivers Res, Rennweg 14, A-1030 Vienna, Austria 6.Chinese Acad Sci, Kunming Inst Bot, CAS Key Lab Plant Biodivers & Biogeog East Asia, Kunming 650201, Yunnan, Peoples R China
推荐引用方式 GB/T 7714	Yu,Yu-Long,Wang,Hui-Chun,Yu,Zhi-Xiang,et al. Genetic diversity and structure of the endemic and endangered species Aristolochia delavayi growing along the Jinsha River[J]. PLANT DIVERSITY,2021,43(3):225-233.
APA	Yu,Yu-Long.,Wang,Hui-Chun.,Yu,Zhi-Xiang.,Schinnerl,Johann.,Tang,Rong.,...&Chen,Gao.(2021).Genetic diversity and structure of the endemic and endangered species Aristolochia delavayi growing along the Jinsha River.PLANT DIVERSITY,43(3),225-233.
MLA	Yu,Yu-Long,et al."Genetic diversity and structure of the endemic and endangered species Aristolochia delavayi growing along the Jinsha River".PLANT DIVERSITY 43.3(2021):225-233.