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Genetic diversity and structure of Munronia delavayi Franch. (Meliaceae), an endemic species in the dry-hot valley of Jinsha River, south-western China
Jia, Jing1,2; Wu, Hao1; Wang, Jin-Feng3; Gong, Xun1
2014-10-01
Source PublicationGENETIC RESOURCES AND CROP EVOLUTION
ISSN0925-9864
Volume61Issue:7Pages:1381-1395
Contribution Rank第一
Abstract

Munronia delavayi Franch. (Meliaceae) is a vulnerable perennial species that is narrowly distributed and endemic to the dry-hot valley of the middle/lower Jinsha River. However, 12 hydropower stations are currently scheduled to be built in the middle and lower Jinsha River drainage and their distribution overlaps with the range of M. delavayi. The construction of these hydropower stations will cause flooding of the adjacent habitats that support M. delavayi and will change the local ecological environment, which may result in a new and dangerous situation for the survival of this species. Our aim was to evaluate the population structure and propose the most suitable conservation strategy for M. delavayi to support its adaptive potential. In this study, we collected 70 individuals from seven populations that covered most of the geographic range along the Jinsha River and investigated the population diversity, genetic structure and demographic history of this species by analyzing the variations in one mitochondrial marker (18sf-5sr), two non-coding chloroplast DNA regions (trnT-trnL, trnS-trnG), and one nuclear DNA marker (Gs687f-994r). As a result, three mitotypes, nine chlorotypes and six haplotypes with high genetic diversity (H-T = 0.580, 0.774 and 0.740) were detected based on mtDNA, cpDNA and nDNA and a strong genetic structure (F-ST = 0.855 and 0.545) was detected based on cpDNA and nDNA. Our study also indicated that habitat fragmentation and limited gene flow may result in the genetic differentiation of this species and that the population distributed in Qiaojia, Yongshan and Panzhihua should be proactively protected based on the conservation genetic analysis.

KeywordConservation Genetics Dry-hot Valley Hydropower Stations Munronia Delavayi Mitochondrial Chloroplast And Nuclear Genomes
Subject AreaAgriculture ; Plant Sciences
DOI10.1007/s10722-014-0120-7
Indexed BySCI
Language英语
WOS Research AreaAgriculture ; Plant Sciences
WOS SubjectAgronomy ; Plant Sciences
WOS IDWOS:000343288500011
Citation statistics
Document Type期刊论文
Identifierhttp://ir.kib.ac.cn/handle/151853/18420
Collection资源植物与生物技术所级重点实验室
Corresponding AuthorGong, Xun
Affiliation1.Chinese Acad Sci, Kunming Inst Bot, Key Lab Plant Divers & Biogeog East Asia, Kunming 650201, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Zhejiang Forestry Acad, Hangzhou 310000, Zhejiang, Peoples R China
Recommended Citation
GB/T 7714
Jia, Jing,Wu, Hao,Wang, Jin-Feng,et al. Genetic diversity and structure of Munronia delavayi Franch. (Meliaceae), an endemic species in the dry-hot valley of Jinsha River, south-western China[J]. GENETIC RESOURCES AND CROP EVOLUTION,2014,61(7):1381-1395.
APA Jia, Jing,Wu, Hao,Wang, Jin-Feng,&Gong, Xun.(2014).Genetic diversity and structure of Munronia delavayi Franch. (Meliaceae), an endemic species in the dry-hot valley of Jinsha River, south-western China.GENETIC RESOURCES AND CROP EVOLUTION,61(7),1381-1395.
MLA Jia, Jing,et al."Genetic diversity and structure of Munronia delavayi Franch. (Meliaceae), an endemic species in the dry-hot valley of Jinsha River, south-western China".GENETIC RESOURCES AND CROP EVOLUTION 61.7(2014):1381-1395.
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