玉米不育系回交转育群体农艺性状的遗传变异及相关分析  

Genetic Variation and Correlation Analysis of Agronomic Traits of Backcross Population on Maize Male Sterile Line

作　　者：王振[1] 高树仁[1] 王霞[1] 孙丽芳[1] 胡凯凤 邓杰[1] 王婧泽 

机构地区：[1]黑龙江八一农垦大学农学院,大庆163319

出　　处：《黑龙江八一农垦大学学报》2016年第2期1-4,共4页journal of heilongjiang bayi agricultural university

基　　金：寒地作物品种改良与生理生态重点开放实验室开放课题基金项目;农业部公益性项目(本地与引进种质资源高效结合与利用研究:201303007)

摘　　要：为研究不育系主要农艺性状在回交早代的分布特点,以玉米细胞质雄性不育系cms-合344为母本与辐63018进行杂交,以辐63018为轮回亲本进行回交转育不育系,对BC1和BC2两群体12个农艺性状进行遗传变异和相关分析。结果表明,在两群体中变异系数较大均是秃尖长,轴粗在两群体之间差异最大。对12个性状进行相关系数分析,BC1穗行数和轴粗两个性状与其他性状间没有相关性,BC2穗行数与行粒数没有相关性。利用两群体中的各变异性状,结合性状间的相关性进行选择,可以加快转育新的玉米不育系。In order to study the main agronomic traits distribution of sterile line in backcross generations,the cytoplasm male sterile line cms-He 344 and Fu63018 were used to hybrid,in which Fu63018 line was as the recurrent parent. 12 agronomic traits of BC1 and BC2 were carried on genetic variation and correlation analysis,the results showed that the coefficient variation of bald long was large,and the axis coarse had the biggest difference between two groups. The correlation coefficient analysis among 12 traits results showed that the number of rows and coarse axis had no relationship with other traits in BC1 groups,and the number of rows had no relationship with kernels rows in BC2 groups. The different variation trait of two groups was used to combine with relevance,which could speed to transfer new maize CMS.

关 键 词：玉米不育系 回交转育 农艺性状 遗传变异 相关分析 

分 类 号：S513[农业科学—作物学]