福建农业学报2016，Vol.31Issue(3)：211-216,6.DOI:10.19303/j.issn.1008-0384.2016.03.001
水稻籼粳交后代的籼粳分化与杂种F1结实率的相关分析
Correlation between F1 Seed-setting and Genetic Differentiation of Indica j aponica Progenies
摘要
Abstract
Base on the Cheng's morphological classification and SSR molecular markers of Indica j aponica ,22 F7 lines derived from Zhenshan 97B/Xiushui 13 were analyzed .These lines were also crossed with 4 2‐PTGMS lines to produce 88 F1 hybrids .The correlation between the genetic background and seed‐setting rate of these F1 hybrids were analyzed .The results showed that the genetic differentiation on the 22 progenies of I . japonica was significant ,with most of them belonged to either Indicaor Indicaclinous type .The I .japonicaclassifications based on the SSR molecular markers and Cheng's index were similar .The seed‐setting and the parental genetic background of the F1 hybrids were found to be negatively correlated at an extremely significant level . According to the stepwise regression analysis , the I . j aponica differentiations on the 2‐PTGMS lines and the difference on the j aponica contents of the parents appeared to be the major factors affecting the seed‐setting of the F1 hybrids .Consequently ,breeding rice populations with cultivars carrying widely compatible genes could benefit the crossing that intended to utilize the heterosis .关键词
水稻/籼粳分化/程氏指数法/SSR分子标记/结实率Key words
rice/Indica j aponica index/Cheng's index/SSR molecular marker/seed-setting rate分类
农业科技引用本文复制引用
陈惠清,黄荣裕,王天生,谢旺有,陈锦文,谢少和,吴建梅,林荔辉..水稻籼粳交后代的籼粳分化与杂种F1结实率的相关分析[J].福建农业学报,2016,31(3):211-216,6.基金项目
泉州市科技局重点项目（2014N29）；福建省科技区域发展项目 （）
