DNA 표지를 이용한 채종원내 소나무의 교배양식 분석

• 영문명: Mating System of Japanese Red Pines in Seed Orchard Using DNA Markers
• 발행기관: 한국자원식물학회
• 저자명: 김영미 홍용표 안지영 박재인
• 간행물 정보: 『한국자원식물학회지』제25권 제1호, 63~71쪽, 전체 9쪽
• 주제분류: 농수해양 > 기타농수해양
• 파일형태: PDF
• 발행일자: 2012.02.28

영문 초록

To assess parameters of mating system in seed orchard, such as outcrossing rates, number of potential pollen contributors, and degree of pollen contamination, seeds, produced in ′77 plot of the Japanese red pine (Pinus densiflora S et Z) seed orchard at Anmyeon island, were collected in 2007 and analysed by nSSR and cpSSR markers. Estimates of outcrossing rates ranged from 91.2 to 100% (mean 97.7%) on the basis of the analysis of cpSSR haplotypes and from 81.6to 100% (mean 95.3%) on the basis of the analysis of nSSR genotypes. By cross checking of both DNA markers, seeds,presumed to be products of self pollination on the basis of single marker, were confirmed as outcrossed seeds, which resulted in cumulative outcrossing rates of 98.9%. On the basis of pooled cpSSR haplotype of each seed, the number of pollen contributors and paternal contribution rates were estimated as 14.8 and 0.512, respectively. In conclusion,considering pretty high level of outcrossing rates observed in a seed orchard, good genetic potential of the seeds, produced in ′77 plot of the seed orchard of Japanese red pines at Anmyeon island, may be guaranteed. Investigated results from the analysis of mating system of Japanese red pines in a ′77 plot of the seed orchard may also be expected to provide useful information for the management and establishment of the seed orchard of the progressive generation.

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결과 및 고찰

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키워드

Japanese red pines Mating system Pollen contamination Seed orchard cpSSR haplotype nSSR genotype Pollen contributor