Journal of Life Science (생명과학회지)

Korean Society of Life Science (한국생명과학회)
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Genetic Diversity and Population Structure of Spiraea prunifolia for. simpliciflora by Inter-Simple Sequence Repeats

조팝나무의 유전적 다양성과 집단구조 분석을 위한 ISSR 분석

  • Huh, Man-Kyu (Department of Molecular Biology, Dongeui University)
  • 허만규 (동의대학교 분자생물학과)
  • Published : 2009.09.30
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Abstract

85 individual Spiraea prunifolia for. simpliciflora (Rosaceae) were sampled to examine the genetic diversity and population structure of S. prunifolia for. simpliciflora populations. Inter-simple sequence repeats (ISSR) produced 65 polymorphic loci and identified 78 ISSR genotypes. Three multilocus genotypes were shared by more than one plant within a population. Total genetic diversity values ($H_T$) and inter-locus variation in the within-population genetic diversity ($H_S$) were 0.293 and 0.183, respectively. On a per-locus basis, the proportion of total genetic variation due to differences among populations ($G_{ST}$) was 0.373. This indicated that about 37.3% of the total variation was among populations. ISSR markers are very effective in classifying natural population levels of S. prunifolia for. simpliciflora in Korea. In addition, insights into the relative gene diversity among and within populations of S. prunifolia for. simpliciflora would be useful in plant breeding and also for the development of strategies for ex situ conservation of plant genetic resources.

조팝나무는 목본이며 약용으로 매우 중요하며 우리나라 산림청 지정 보호수종이다. 이 속내 7집단에서 85개체에 대해 ISSR (inter simple sequence repeats) 마커로 이들 집단에 대한 유전적 변이와 집단구조를 조사하였다. 65개의 다형성 좌위와 78개 ISSR 유전자형을 얻었다. 덕유산 집단과 능동산 집단에는 1개체 이상 공유하는 유전자형이 포함되어 있었다. 전체 유전적 다양도는 종수준과 집단수준에서 각각 0.293과 0.183이였다. 집단의 분화($G_{ST}$)는 0.373으로 나타났다. 따라서 전체 변이의 37.3%는 집단 간에 있었다. ISSR 마커로 한국 내 조팝나무 집단의 분화는 잘 분리되어 ISSR로 조팝나무 집단 연구에 유익하며 유전적 다양도와 집단구조의 통찰은 종보전에 대한 기초 정보로 활용할 수 있을 것으로 사료된다.

Keywords

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