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Genetic diversity and structure of an endangered medicinal herb: implications for conservation.
Lee, Soo-Rang; Choi, Ji-Eun; Lee, Byoung-Yoon; Yu, Jeong-Nam; Lim, Chae Eun.
Afiliação
  • Lee SR; Multidisciplinary Genome Institute, Life Science Hall, Hallym University, Hallymdaehak-gil, Chuncheon-si, Gangwon-do, South Korea.
  • Choi JE; National Institute of Biological Resources, Seo-gu, Incheon, South Korea.
  • Lee BY; National Institute of Biological Resources, Seo-gu, Incheon, South Korea.
  • Yu JN; Nakdonggang National Institute of Biological Resources, Donam, Sangju-si, Gyeongsangbuk-do, South Korea.
  • Lim CE; National Institute of Biological Resources, Seo-gu, Incheon, South Korea.
AoB Plants ; 10(2): ply021, 2018 Apr.
Article em En | MEDLINE | ID: mdl-29692882
ABSTRACT
Human-driven habitat fragmentation leads to spatial isolation of endangered plant species increasing extinction risk. Understanding genetic variability and population structure of rare and isolated plant species is of great importance for assessing extinction risk and setting up conservation plans. Aconitum austrokoreense, an endangered and endemic species in Korea, is a perennial herb commonly used for medicinal purposes. We used five nuclear microsatellites and one chloroplast marker to investigate genetic diversity and population structure for 479 individuals of A. austrokoreense from seven populations throughout South Korea. A multivariate approach, discriminant analysis of principal components analysis, revealed broad-scale spatial patterns of A. austrokoreense populations across three major mountains that were composed of seven genetically distinct subgroups. High pairwise FST values (mean FST = 0.35; highest FST = 0.55) suggested significant differentiation among populations. Overall within population genetic variation was low. Based on Mantel test, there was significant correlation between geographical and genetic distances indicating pattern of isolation by distance. Our results suggest that A. austrokoreense populations may have undergone recent population bottlenecks. Given the limited dispersal ability of the species and ongoing habitat fragmentation, population isolation may further be exacerbated leading to increased extinction risk.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: AoB Plants Ano de publicação: 2018 Tipo de documento: Article País de afiliação: Coréia do Sul

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: AoB Plants Ano de publicação: 2018 Tipo de documento: Article País de afiliação: Coréia do Sul