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

Jian Ling Guo; Wen Juan Cao; Zhi Min Li; Yong Hong Zhang; Sergei Volis

doi:10.1016/j.pld.2018.12.002

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

Jian Ling Guo, Wen Juan Cao, Zhi Min Li, Yong Hong Zhang, Sergei Volis

Research output: Contribution to journal › Article › peer-review

10 Scopus citations

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, Φ _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.

Original language	English
Pages (from-to)	13-18
Number of pages	6
Journal	Plant Diversity
Volume	41
Issue number	1
DOIs	https://doi.org/10.1016/j.pld.2018.12.002
State	Published - 1 Feb 2019
Externally published	Yes

Keywords

Conservation strategy
Cypripedium tibeticum
East Himalaya-Hengduan mountains
Orchid genetic diversity
Population differentiation

ASJC Scopus subject areas

Ecology, Evolution, Behavior and Systematics
Plant Science

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.pld.2018.12.002

Cite this

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title = "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, Φ 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.",

keywords = "Conservation strategy, Cypripedium tibeticum, East Himalaya-Hengduan mountains, Orchid genetic diversity, Population differentiation",

author = "Guo, {Jian Ling} and Cao, {Wen Juan} and Li, {Zhi Min} and Zhang, {Yong Hong} and Sergei Volis",

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AU - Cao, Wen Juan

AU - Li, Zhi Min

AU - Zhang, Yong Hong

AU - Volis, Sergei

PY - 2019/2/1

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AB - 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, Φ 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.

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KW - Orchid genetic diversity

KW - Population differentiation

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

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

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