云南边境地区稻种资源的SSR标记遗传多样性及其主要农艺性状关联性分析

汤翠凤, 阿新祥, 董超, 张斐斐, 杨雅云, 杨红梅, 戴陆园, 苏振喜

Analysis of Genetic Diversity by SSR Markers and Correlation of Main Agronomic Traits of Rice Germplasm Resources in Border Areas of Yunnan

Tang Cuifeng, A Xinxiang, Dong Chao, Zhang Feifei, Yang Yayun, Yang Hongmei, Dai Luyuan, Su Zhenxi

表6 稻种资源表型性状的主成分分析

Table 6 Principal component analysis of phenotypic traits of rice germplasm

项目 Item 主成分Principle component PC1 PC2 PC3 PC4 株高Plant height (cm) 0.247 0.108 -0.372 0.606 穗长Panicle length (cm) 0.400 0.126 -0.095 0.101 有效穗数Effective panicle number per plant -0.114 -0.125 0.507 0.254 穗实粒数Filled grain number per panicle 0.369 0.268 0.392 0.071 穗秕粒数Unfilled grain number per panicle 0.306 -0.537 -0.080 -0.008 穗粒数Grains per panicle 0.455 -0.103 0.252 0.051 结实率Seed setting rate (%) -0.064 0.628 0.332 0.011 千粒重1000-grain weight (g) 0.017 0.351 -0.380 -0.468 穗抽出度Panicle exsertion (cm) -0.188 0.198 -0.295 0.607 剑叶长Flag leaf length (cm) 0.391 0.132 -0.029 0.029 剑叶宽Flag leaf width (cm) 0.370 0.109 -0.171 -0.211 特征值Eigenvalue 3.796 1.946 1.458 1.294 方差贡献率Variance contribution rate (%) 34.510 17.690 13.251 11.767 累计贡献率Cumulative contribution rate (%) 34.510 52.200 65.451 77.218