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팥배나무 집단의 열매의 형태적 특성에 의한 다변량분석과 선발효과추정
김문섭 ( Moon Sup Kim ),김세현 ( Sea Hyun Kim ),한진규 ( Jing Yu Han ),권해연 ( Hae Yun Kwon ),송정호 ( Jeong Ho Song ),김혜수 ( Hyeu Soo Kim ) 한국임학회 2014 한국산림과학회지 Vol.103 No.2
본 연구는 팥배나무의 열매에 대한 우수개체 선발을 위한 기초자료를 얻고자 11개 집단에서 총 107개체를 선발하여 선발목 열매의 형태적 특성 변이를 조사하고 주성분 분석과 군집분석을 실시하였으며 열매 특성에 의한 선발효과를 추정하였다. 주성분 분석 결과, 제4 주성분까지 75.4%의 설명력을 나타냈으며 군집분석에서는 4 그룹으로 구분되어짐을 알 수 있었다. 열매 수확량과 관련된 특성인 열매 폭과 길이 그리고 송이 당 수확량 특성을 대상으로 광교산1, 2와 덕유산7 그리고 마니산 29, 30 등 5개체의 우수개체 후보목을 선발하였다. 선발개체 5본에 대해서 전체 평균 형질과 비교하여 선발효과를 추정한 결과, 열매 폭은 122.8%, 열매 길이는 115.5%, 송이 당 수확량은 182.7%의 선발효과를 추정할 수 있었다. In order to select superior trees based on fruit characteristics and provide basic informations necessary for their improvement, total 107 individual trees of Sorbus alnifolia (Sieb. et Zucc.) K. Koch were selected from 11 wild populations in South Korea. After collecting normal fruit branch, we investigated morphological characteristics of fruit and then considered its relationship among the 11 populations by multivariate analysis method. Results from principal compound analysis showed that it represented 85.8% accumulated explanation from five principal compounds. According to cluster analysis based on fruit characteristics, the natural S. alnifolia populations were classified into four groups and Mt. Mani population was different from other populations. Selection effect with outstanding candidate trees including superior 5 individual trees (Gwangyo 1, Gwangyo 2, Deogyu 7, Mani 29, Mani 30) was estimated at 122.8%, 115.5% and 182.7% in fruit width, length and yield per fruit bunch, respectively. The object of this results will give us invaluable information about breeding by selection of S. alnifolia in south Korea.
김문섭(Moon-Sup Kim),김세현(Sea-Hyun Kim),한진규(Jin-Gyu Han),송정호(Jeong-Ho Song),김혜수(Hyeu-Soo Kim),김도훈(Do-Hoon Kim),권용삼(Yong-Sham Kwon) 한국육종학회 2015 한국육종학회지 Vol.47 No.1
The objective of this study was carried out to assess genetic diversity of Korean local accessions of wild pear using morphological traits and microsatellite markers. Assessment of 14 phenotypic traits showed high variation among wild pear accessions. These parameters were not applicable genetic diversity analysis of wild pear collection due to quantitatively inherit and their expression is affected by environmental factors. Microsatellite markers were used to evaluate the genetic similarity of 62 accessions. Among 50 tested SSR markers, 16 primer pairs were selected to profile genetic diversity on the basis of high level polymorphism. These microsatellite markers showed 1 or 2 discrete amplified fragment for all of the accessions. The sixteen microsatellite loci amplified 278 alleles, with 10 to 27 alleles (average 17.385) per locus. The mean of observed heterozygosity and polymorphism information content were 0.776 and 0.836, respectively. The Jaccard’s similarity coefficient ranged from 0.09 to 1.00. Two major groups were produced from all the accessions by UPGMA cluster analysis. Fifty five accessions could be discriminated except for 2 pairs. These results would be provided useful information about valuable genetic resources though assessment of genetic diversity and relationship in local pear accessions.