Hybrid Rice Resistant to Bacterial Leaf Blight Developed By Marker Assisted Selection

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Hybrid Rice Resistant to Bacterial Leaf Blight Developed By Marker Assisted Selection

CAO Li-yong; ZHUANG Jie-yun; YUAN Shou-jiang; ZHAN Xiao-deng; ZHENG Kang-le; CHENG Shi-hua

Chinese National Center for Rice Improvement; State Key Laboratory for Rice Biology,China National Rice Research Institute, Hangzhou 310006, China

Received:2003-06-23 Revised:1900-01-01 Online:2003-10-18 Published:2003-10-18
Contact: CHENG Shi-hua

Abstract

Abstract: Through recurrent backcrossing in combination with molecular markerassisted selection (MAS), restorer lines R8006 and R1176 carrying Xa21, a gene having broadspectrum resistance to rice bacterial leaf blight, were selected. By crossing the two lines to CMS line Zhong 9A, two new hybrid rice combinations, Zhongyou 6 and Zhongyou 1176 were developed. The hybrids showed high resistance to diseases, good grain quality and high yielding potential in national and provincial adaptability and yield trials.

Key words: marker assisted selection, hybrid rice, bacterial leaf blight, disease resistance

CAO Li-yong, ZHUANG Jie-yun, YUAN Shou-jiang, ZHAN Xiao-deng, ZHENG Kang-le, CHENG Shi-hua. Hybrid Rice Resistant to Bacterial Leaf Blight Developed By Marker Assisted Selection[J]. RICE SCIENCE.

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Hybrid Rice Resistant to Bacterial Leaf Blight Developed By Marker Assisted Selection

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