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Conservation implications of population genetic structure in a threatened orchid Cypripedium tibeticum.

ABSTRACT: Cypripedium tibeticum is a threatened orchid which efficient conservation requires knowledge of its extent and structure of genetic variation. Using two chloroplast DNA fragments (rps16 and trnL-F), we analyzed 157 individuals from 9 populations representing the species range in China. Seven haplotypes were identified. C. tibeticum had high total genetic diversity (H T = 0.80) with major contribution to this diversity made by among-population component (G ST = 0.64, ? ST = 0.86). However, despite high population differentiation there was no clear phylogeographic structure. The populations CY and DC made the greatest contribution to the total gene diversity as well as allelic richness. The possible mechanisms and implications of these findings for conservation of the species are discussed.

SUBMITTER: Guo JL

PROVIDER: S-EPMC6412106 | biostudies-literature | 2019 Feb

REPOSITORIES: biostudies-literature

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Conservation implications of population genetic structure in a threatened orchid Cypripedium tibeticum.

Guo Jian-Ling JL Cao Wen-Juan WJ Li Zhi-Min ZM Zhang Yong-Hong YH Volis Sergei S

Plant diversity 20181231 1

Cypripedium tibeticum is a threatened orchid which efficient conservation requires knowledge of its extent and structure of genetic variation. Using two chloroplast DNA fragments (rps16 and trnL-F), we analyzed 157 individuals from 9 populations representing the species range in China. Seven haplotypes were identified. C. tibeticum had high total genetic diversity (H T = 0.80) with major contribution to this diversity made by among-population compone ...[more]

PMID: 30931413

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Dataset Information

Conservation implications of population genetic structure in a threatened orchid Cypripedium tibeticum.

Publications

Conservation implications of population genetic structure in a threatened orchid <i>Cypripedium tibeticum</i>.

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