Os06g0212900
part of a killer-protector system was found at the S5 locus. ORF3(Os06g0212900) act as the protector to prevent ER stress and produce normal gametes.
Contents
Annotated Information
Function
A killer-protector system was found at the S5 locus encoded by three tightly linked genes [Open Reading Frame 3 (ORF3)to ORF5] regulates fertility in indica japonica hybrids. During female sporogenesis, the action of ORF5+ (killer) and ORF4+ (partner) causes endoplasmic reticulum (ER) stress. ORF3+ (protector) prevents ER stress and produces normal gametes, but ORF3–cannot prevent ER stress, resulting in premature programmed cell death and leads to embryo-sac abortion. Preferential transmission ofORF3+ gametes results in segregation distortion in the progeny. These results add to our understanding of differences betweenindica andjaponica rice and may aid in rice genetic improvement.[1]
Expression
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Evolution
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Labs working on this gene
- National Key Laboratory of Crop Genetic Improvement and National Centre of Plant Gene Research, Huazhong Agricultural University, Wuhan 430070, China.
- School of Life Sciences, Chinese University of Hong Kong, Shatin, New Territories, Hong Kong 999077, China.
References
- ↑ 1.0 1.1 Jiangyi Yang, Xiaobo Zhao, Ke Cheng, Hongyi Du, Yidan Ouyang, Jiongjiong Chen, Shuqing Qiu, Jianyan Huang, Yunhe Jiang, Liwen Jiang, Jihua Ding, Jia Wang, Caiguo Xu, Xianghua Li, Qifa Zhang. (2012) A Killer-Protector System Regulates Both Hybrid Sterility and Segregation Distortion in Rice. Science 337: 1336-1340.
