文献类型： 会议论文

第一作者： Feng Wang

作者： Feng Wang ¹ ; Wuge Liu ¹ ; Yisheng Han ¹ ; Zhenrong Liu ¹ ;

作者机构： 1.Rice Research Institute, Guangdong Academy of Agricultural Sciences,Guangzhou 510640, Guangdong, China

会议名称： International symposium on hybrid rice

主办单位：

页码： 1-9

摘要： Grain quality is a major objective for many breeding programs. Because the ultimate economic product of hybrid rice is a bulk of segregating endosperms of the F2 generation, the quality traits of hybrid rice are co-determined by both female and male parental lines. This makes hybrid rice breeding for fine grain quality more complicated and challenging. With the rapid development of biotechnology, inheritance of the main quality traits has been elucidated and most of them have been precisely mapped on linkage groups with molecular markers. Based on the understanding of the nature of the inheritance of the quality attributes and the mapping of the genes, strategies for breeding highquality hybrid rice have been proposed, and a highly efficient breeding platform needs to be established by pyramiding all the desirable grain quality traits into the elite parental lines of hybrid rice with both traditional backcross and molecular marker–assisted selection to accelerate the development of fine-quality hybrid rice. Some MS lines, such as Taifeng A, Tianxiang A, and Yuefeng A, and restorer lines Guanghui 998 and Guanghui 122, as well as a series of heterotic combinations with better grain quality traits have been developed.

分类号： Q781`S334