文献类型： 外文期刊
作者： You, Shimin 1 ; Zhao, Zhigang 1 ; Yu, Xiaowen 1 ; Zhu, Shanshan 2 ; Wang, Jian 2 ; Lei, Dekun 1 ; Zhou, Jiawu 3 ; Li, Jing 3 ; Chen, Haiyuan 1 ; Xiao, Yanjia 1 ; Chen, Weiwei 2 ; Wang, Qiming 1 ; Lu, Jiayu 1 ; Chen, Keyi 1 ; Zhou, Chunlei 1 ; Zhang, Xin 2 ; Cheng, Zhijun 2 ; Guo, Xiuping 2 ; Ren, Yulong 2 ; Zheng, Xiaoming 2 ; Liu, Shijia 1 ; Liu, Xi 1 ; Tian, Yunlu 1 ; Jiang, Ling 1 ; Tao, Dayun 3 ; Wu, Chuanyin 2 ; Wan, Jianmin 1 ;
作者机构： 1.Nanjing Agr Univ, State Key Lab Crop Genet & Germplasm Enhancement &, Cytogenet Inst, Zhongshan Biol Breeding Lab, Nanjing 210095, Peoples R China
2.Chinese Acad Agr Sci CAAS, Inst Crop Sci, State Key Lab Crop Gene Resources & Breeding, Beijing 100081, Peoples R China
3.Yunnan Acad Agr Sci YAAS, Food Crops Res Inst, Yunnan Seed Lab, Yunnan Key Lab Rice Genet Improvement, Kunming 650200, Peoples R China
期刊名称：NATURE COMMUNICATIONS （ 影响因子：16.6； 五年影响因子：17.0 ）
ISSN：
年卷期： 2023 年 14 卷 1 期
页码：
收录情况： SCI
摘要： 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. In plants heterozygous at qHMS1, similar to 50% of pollens carrying qHMS1-D (an allele from cultivated rice) are selectively killed. In plants heterozygous at both qHMS1 and qHMS7, similar to 75% pollens without co-presence of qHMS1-Mer and qHMS7-D are selectively killed, indicating that the antidotes function in a toxin-dependent manner. Our results indicate that different toxin-antidote systems provide stacked reproductive isolation for maintaining species identity and shed light on breakdown of hybrid male sterility.
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