Shimin You, Zhigang Zhao, Xiaowen Yu, Shanshan Zhu, Jian Wang, Dekun Lei, Jiawu Zhou, Jing Li, Haiyuan Chen, Yanjia Xiao, Weiwei Chen, Qiming Wang, Jiayu Lu, Keyi Chen, Chunlei Zhou, Xin Zhang, Zhijun Cheng, Xiuping Guo, Yulong Ren, Xiaoming Zheng, Shijia Liu, Xi Liu, Yunlu Tian, Ling Jiang, Dayun Tao, Chuanyin Wu, Jianmin Wan
Breakdown of reproductive isolation facilitates flow of useful trait genes into crop plants from their wild relatives. Hybrid sterility, a major form of reproductive isolation exists between cultivated rice (Oryza sativa) and wild rice (O. meridionalis, Mer). Here, we report the cloning of qHMS1, a quantitative trait locus controlling hybrid male sterility between these two species. Like qHMS7, another locus we cloned previously, qHMS1 encodes a toxin-antidote system, but differs in the encoded proteins, their evolutionary origin, and action time point during pollen development...
November 18, 2023: Nature Communications