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Genetic Diversity and Spatial Genetic Structure of Dwarf Stone Pine in Daecheongbong Area, Mt. Seorak (설악산 대청봉 눈잣나무(Pinus pumila (Pall.) Regel) 집단의 유전다양성과 공간적 유전구조)

  • Song, Jeong-Ho;Lim, Hyo-In;Hong, Kyung-Nak;Jang, Kyung-Hwan;Hong, Yong-Pyo
    • Korean Journal of Plant Resources
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    • v.25 no.4
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    • pp.407-415
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    • 2012

  • Pinus pumila, which occurs in the northeast Asia, is found limitedly in Daecheongbong area of Mt. Seorak in the South Korea. This population was chosen to study spatial pattern, genetic diversity and spatial genetic structure. There were 48 polymorphic and 30 monomorphic I-SSR markers. A total of 65 individuals which distributed in the study site (40 m ${\times}$ 70 m) showed weakly aggregate distribution (Aggregate Index = 0.871). A total of 40 genets were observed from 65 individuals through I-SSR genotype comparison. Proportion of distinguishable genotype (G/N), genotype diversity (D) and genotype evenness (E) were 61.5%, 0.977 and 0.909, respectively. In spite of the small number and the limited distribution, Shannon's diversity index (I = 0.567) was relatively high as compared with those of other plant species. Spatial autocorrelation using Tanimoto's distance showed that the genetic patch was established within 12 m. Based on Mantel tests, there was relatively low correlation between genetic distance and geographic distance. Therefore, it seems the P. pumila population was formed by many parent trees in early stage. For ex situ genetic conservation of P. pumila, the sampling strategy is efficient at least above 12 m between individual trees.

  • https://doi.org/10.7732/kjpr.2012.25.4.407 인용 PDF KSCI