CAJ | 학술논문

为了利用关联分析发掘与重要农艺性状相关的数量性状基因位点，本研究采用全基因组扫描的方法，利用分布在基因组上的60对SSR引物，对140份东北三省水稻种质资源进行群体结构和连锁不平衡分析。结果表明：本研究中东北粳稻可分为2个类群，线性和非线性组合中，都有一定的连锁不平衡存在。群体中，19.2%的标记位点可以观察到显著的LD (P<0.05)，其中第一类群和第二类群基于D'统计概率(P<0.05)支持的LD成对位点比例分别为2.1%和16.6%。第2类群连锁不平衡衰减(D'<0.5)所延伸的遗传距离变幅为0.32-120.4 cM，回归方程为：y=-0.0276ln(x)+0.3994。
위료이용관련분석발굴여중요농예성상상관적수량성상기인위점，본연구채용전기인조소묘적방법，이용분포재기인조상적60대SSR인물，대140빈동북삼성수도충질자원진행군체결구화련쇄불평형분석。결과표명：본연구중동북갱도가분위2개류군，선성화비선성조합중，도유일정적련쇄불평형존재。군체중，19.2%적표기위점가이관찰도현저적LD (P<0.05)，기중제일류군화제이류군기우D'통계개솔(P<0.05)지지적LD성대위점비례분별위2.1%화16.6%。제2류군련쇄불평형쇠감(D'<0.5)소연신적유전거리변폭위0.32-120.4 cM，회귀방정위：y=-0.0276ln(x)+0.3994。
To discover quantitative trait loci related to important agronomic traits via association analysis, popula-tion structure and linkage disequilibrium ( LD ) of 140 rice germplasm resources from northeast provinces were analyzed with 60 SSR markers located on chromosomes in this study. The results indicated that the population of japonica rice in northeast could be classified into 2 groups, and LD in the linear and non-linear combination occurred commonly. 19.2%of the SSR loci pairs significantly showed LD at P<0.05, where the sites based on D' linkage disequilibrium of group 1 and group 2 were 2.1%and 19.1%, respectively. LD of second group was found to decay across a range from 0.32 to 120.4 cM, and the regression equation was y=-0.0276ln(x)+0.3994.