한국산림과학회지 (Journal of Korean Society of Forest Science)

  • 제103권2호
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  • Pages.182-188
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  • 2014
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  • 2586-6613(pISSN)
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  • 2586-6621(eISSN)
한국산림과학회 (Korean Society of Forest Science)
권호 표지
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ISSR 분석에 의한 전나무 집단의 유전변이

Genetic Variation of Abies holophylla Populations in South Korea Based on ISSR Markers

  • 김영미 (국립산림과학원 산림유전자원과) ;
  • 홍경낙 (국립산림과학원 산림유전자원과) ;
  • 이제완 (국립산림과학원 산림유전자원과) ;
  • 양병훈 (산림청 산림환경보호과)
  • Kim, Young-Mi (Division of Forest Genetic Resources, Korea Forest Research Institute) ;
  • Hong, Kyung Nak (Division of Forest Genetic Resources, Korea Forest Research Institute) ;
  • Lee, Jei Wan (Division of Forest Genetic Resources, Korea Forest Research Institute) ;
  • Yang, Byeong-Hoon (Forest Environment Conservation Division, Korea Forest Service)
  • 투고 : 2013.09.09
  • 심사 : 2014.05.27
  • 발행 : 2014.06.30
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초록

ISSR 표지를 이용하여 전나무 6개 집단의 유전다양성과 유전구조를 분석하였다. 6개 ISSR primer로 유전다양성을 추정한 결과, 집단별 다형성 유전자좌의 비율은 평균 85.6%, 이형접합도 기대치($H_e$)는 0.288로 나타났다. AMOVA 결과, 전체 유전변이에서 5.6%는 집단간, 94.4%는 집단내 개체간 차이에 기인하는 것으로 나타났다. 베이즈 추론에 근거한 유전분화는 ${\theta}^{II}$와 $G_{ST}$가 각각 0.045, 0.038로, 근연교배 정도는 0.509로 추정되었다. Mental 검증에서 집단간 지리적 거리가 멀수록 유전적으로 상이한 것으로 판명되었다(r = 0.74, P < 0.05). UPGMA 방법과 PCA 결과에 따라서 남원, 청도, 문경 집단을 한 군집으로, 인제, 홍천, 평창 집단을 다른 군집으로 나눌 수 있었다. 베이즈 군집분석에서는 유전변이 분포에 따라서 남원, 문경 집단이 한 군집으로 인제, 홍천, 평창, 청도 집단이 다른 한 군집으로 묶여서 2개의 상위 군집으로 나뉘었다. 빈도주의 분석에 따른 '군집'을 반영한 AMOVA 결과에서 전체 유전변이의 3.9%를 군집의 영향으로 설명할 수 있었으며, 전나무 집단의 지리적 분포는 베이즈 분석보다는 UPGMA 방법에 의한 구분과 일치하는 것으로 나타났다.

Genetic diversity and genetic differentiation in six natural populations of Abies holophylla Max were investigated using ISSR marker system. From 6 ISSR primers, the average percentage of polymorphic loci was 85.6%, and the average expected heterozygosity ($H_e$) was 0.288. From the result of AMOVA, 94.4% of total genetic variation came from the differences among individuals within populations, and 5.6% was caused by those of among-populations. On the basis of Bayesian inference, genetic differentiation (${\theta}^{II}$ and $G_{ST}$) and inbreeding coefficient for all populations were 0.045, 0.038, and 0.509, respectively. The correlation between genetic distance and geographical distance was highly significant at the Mental's test (r = 0.74, P < 0.05). Six populations divided into two groups according to the results of UPGMA and PCA. One group included Namwon, Cheongdo and Mungyeong population. The other was Inje, Hongcheon and Pyeongchang population. Also, in Bayesian clustering analysis, 6 populations were divided into two clusters. But Cheongdo population was assigned into the other cluster unlike those of UPGMA or PCA. Taking the regions based on the results of the cluster analysis into consideration of AMOVA, 3.9% of genetic variation came from the regional difference. The dendrogram from UPGMA could provide the most genetically reasonable explanation for the distribution of Abies holophylla populations in South Korea.

키워드

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피인용 문헌

  1. 제주도 개가시나무의 유전구조와 유전적 다양성 vol.107, pp.2, 2014, https://doi.org/10.14578/jkfs.2018.107.2.151