中国水稻科学

中国水稻科学

• 研究报告 • 上一篇    下一篇

水稻亚种间的亲和性研究

徐云碧; 王建军; 申宗坦   

  1. 浙江农业大学
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:1989-10-10 发布日期:1989-10-10

Study on Intersubspecific Compatibility in Rice(Oryza sativa)

Xu Yunbi; Wang Jianjun; Shen Zongtan   

  • Received:1900-01-01 Revised:1900-01-01 Online:1989-10-10 Published:1989-10-10

PDF

摘要： 对160个亚种间F_1结实率的分析表明,籼稻 IR58和二九丰、粳稻秀水117和T8340具有较好的亚种间亲和性。43个粳稻品种分别与 IR58和二九丰测交,其成对 F_1的结实率随粳稻品种不同而出现 IR58/粳高于二九丰/粳、二九丰/粳高于 IR58/粳或两者相似的情形,其最大差值可达72.6个百分点。10个籼稻品种分别与秀水117和 T8340杂交,其F_1结实率均以秀水117/籼较高,成对F_1结实率的最大差值可达39.6个百分点。这表明不存在对亚种间品种均表现亲和性的“广亲和”品种,亲和性的广与狭只是相对的,既有一般亲和性,又有特殊亲和性。本研究发现4个受测品种的亲和性与色素基因之间不存在连锁或相关关系。

关键词: 水稻, 籼粳杂交, 亚种间亲和性, 品种筛选

Abstract: Analysis on spikelet fertility of intersubspecific F1 hybrids revealed that IR58 and Er-Jiu-Feng(indicas), and Xiu-Shui 117 and T8340(Japonicas)showed intersubspecific compatibility. When crossed to 43 japonica testers,spikelet fertility of F1 with IR58 was higher than that with Er-Jiu-Feng for some testers and vice versa for the others,and the difference of fertility between IR58/japonica and Er-Jiu-Feng/japonica could be up to 72.6 percent points.When crossed to 10 indica testers spikelet fertility of F1' with Xiu-Shui 117 were all higher than those with T8340, and the difference of fertility between Xiu-Shui 117/indica and T8340/indica could be up to 39.6 percent points. It was suggested that the intersubspecific compatibility of a variety could not be so wide that all of the F1's had a high fertility when crossed with indica and japonica testers. There were not only general compatibility but also specific compatibility between the tested variety and its testers,Linkage or correlation between compatibility and chromogen was not found in the tested compatible varieties.

Key words: Oryza sativa, Indica-japonica hybrids, Intersubspecific compatibility, Varietal screening