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《Hybrid Rice》 2004-01
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Studies on Yield-enhancing Genes from Wild Rice and Their Marker-assisted Selection in Hybrid Rice

DENG Qi-yun~1, YUAN Long-ping~1, LIANG Feng-shan~2, LI Ji-ming~1, LI Xin-qi~1, WANG Le-guang~2, WANG Bin~2(1.China National Hybrid Rice Research and Development Center, Changsha, Hunan 410125, China; 2.Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China)  
It has been widely proved that genetic improvement is the most practicable way to increase rice productivity. However, it is now quite limited to further raise the yield ceiling through traditional breeding methods based on the exploitation of genetic diversity withinOryza sativa. With the rapid development of the biotechnology in recent years, it becomes a more and more important research field for rice breeders to introduce distantly related favorable genes into rice cultivars from wild relatives of rice. It is described here that the discovery of two yield-enhancing QTLs (yld1.1 andyld2.1) from wild rice and the preliminary studies on the marker-assisted selection (MAS) of these QTLs in hybrid rice breeding program. The prospect in the realm of MAS breeding was also discussed in the paper.
【Fund】: 国家高技术研究发展计划 (2 0 0 1AA2 110 71-3 ) ;; 国家自然科学基金 (3 0 2 70 819) ;; 湖南省自然科学基金 (0 0JJY10 0 3 )资助;; 美国洛克菲勒基金 (theRockefellerFoundation)资助
【CateGory Index】: S511.9
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