• 제목/요약/키워드: distograms

검색결과 1건 처리시간 0.013초

Spatial Genetic Structure of Allozyme Polymorphisms within a Small Population of Abies nephrolepis in Mt. Ohdae, South Korea

  • Lee, Seok-Woo;Yang, Byeong-Hoon;Lee, Kab Yeon;Song, Jeong Ho;Hur, Seong Doo;Lee, Jung Joo
    • 한국산림과학회지
    • /
    • 제97권2호
    • /
    • pp.144-151
    • /
    • 2008
  • Using 8 isozyme polymorphic loci as gene markers, we studied the spatial distribution of genotypes in a naturally regenerated uneven-aged Eastern Siberian Fir (Abies nephrolepis Max.) stand (1ha, $100{\times}100m$) on Mt. Ohdae in northeastern South Korea. Gregorius' distograms and Moran's I correlograms revealed no evidence of significant genetic structure at three spatial classes of 5 m, 10 m, and 20 m. Extensive gene flow, due to the long distance dispersal of pollen and seeds in A. nephrolepis, may account for the lack of fine-scale spatial structure. Alternatives would be overlapping seed shadows caused by high densities of A. nephrolepis adult trees (160 trees/ha) and/or intraspecific competition resulting in extensive thinning within maternal half-sib groups.