外引大豆种质资源在新疆生态区的遗传多样性分析  

Preliminary Analysis of Genetic Diversity of Introduced Soybean Germplasm in Xinjiang Ecological Region

作　　者：章艳凤[1] 严勇亮[1] 王宏飞[2] 王钊英[3] 肖菁[1] 丛花[1] 

机构地区：[1]新疆农业科学院农作物品种资源研究所,乌鲁木齐830091 [2]中国科学院新疆生态与地理研究所,乌鲁木齐830011 [3]新疆农业科学院,乌鲁木齐830091

出　　处：《新疆农业科学》2012年第11期1966-1972,共7页Xinjiang Agricultural Sciences

基　　金：新疆维吾尔自治区兴农办项目(2011xn01);新疆农科院优秀青年科技基金项目(xjnky-2012-021)

摘　　要：[目的]促进外引大豆种质资源的有效利用,为新疆大豆育种和种质创新提供依据。[方法]采用数量性状多样性统计和聚类分析方法,对149份外引大豆种质资源的8个主要农艺性状和2个籽粒性状进行遗传多样性分析。[结果]149份大豆种质资源主要来源于11个国家和地区,具有较高的变异系数,变异范围为12.48%～67.13%,其中单株荚数、单株粒数和单株粒重的变异系数最高,达60%以上;生育期的变异系数最低,为12.48%;基于10个农艺性状的聚类分析将149份材料聚为2大类5亚类,聚类结果与材料地理来源具有一定相关性。[结论]该批种质资源极大丰富了新疆大豆的遗传多样性,为新疆大豆育种奠定了基础。[ Objective ] The purpose of this project was to promote tlae ettecuve use of mtroouceu soyoean germphlasm in Xinjiang and provide basis for choosing parents when creating a new cross combination. [ Method] Eight primary agronomic characters and two kernel traits were used to evaluate genetic diversity of 149 soybean germplasm from different countries. [ Result] The results showed that 149 soybean germplasm from 11 nations and areas such as Japan and America et al. , had high variation coefficient of 8 characters ranged from 12.48% to 67.13%, and the largest variation coefficient was found in Pods per plant, Seeds per plant and Seed weight per plant exceed 60% ; the smallest coefficient of variation to maturity was 12.48%. The results also showed that the 149 varieties could be divided into 2 groups, 5 sub - groups according to 8 agronomic traits and 2 seed traits. The results of clustering showed some rules in the geographical distribution. [ Conclusion]The 149 varieties increased genetic diversity in broadening genetic basis of Xinjiang soybean cultivars. of Xinjiang soybean germplasm, and were utilized

关 键 词：大豆 农艺性状 多样性 聚类分析 

分 类 号：S565.1[农业科学—作物学]