甜玉米遗传距离与特殊配合力的关系  

Relationship between Genetic Divergence and Specific Combining Ability of Sweet Corn

作　　者：王逸群[1] 郑金贵 王玉兰[3] 吴若菁[1] 孙珊珊[1] 

机构地区：[1]福建师范大学生物工程学院,福建福州350007 [2]福建农林大学生物技术中心,福建福州350002 [3]吉林农业大学农学院,吉林长春130118

出　　处：《吉林农业大学学报》2002年第4期26-29,共4页Journal of Jilin Agricultural University

基　　金：吉林省科委资助项目 ( 96 -5 5 1-11-0 1)

摘　　要：按照Griffing完全双列杂交遗传交配设计方法Ⅰ配制组合 ,对甜玉米产量性状的特殊配合力进行了测定并根据 70个甜玉米自交系数量性状的表现计算了它们之间的遗传距离。回归分析结果表明 :F1 代产量的特殊配合力与双亲之间的遗传距离呈三次曲线关系 ,而F1 代含糖量性状的特殊配合力与双亲之间的遗传距离无确定关系。同时 ,对遗传距离预测F1A total of 8 inbred lines with great genetic diversity in 70 inbred lines of sweet corn were used selectively as parents to make complete diallel crosses in accordance with the Griffing method 1 in order to study the relationship between genetic divergence and specific combining ability of sweet corn. The results showed that the relation between genetic divergence and specific combining ability of the green ear yield can be described as Y SCA=a+bD+cD 2+dD 3. The yield specific combining ability can be predicted from the divergence of their parental lines according to this model,but no definite relation could be found between parental genetic divergence and the specific combining ability of sugar content in sweet corn.

关 键 词：甜玉米 遗传距离 特殊配合力 产量性状 

分 类 号：S513[农业科学—作物学]