中国科学家阐明Boro II型水稻细胞质雄性不育和育性恢复的分子机理

Chinese Scientists Elucidated Molecular Mechanisms of Cytoplasmic Male Sterility and Fertility Restoration for Boro II CMS of Rice

自从20世纪70年代中国成功实现杂交水稻三系配套以来,不少学者致力于水稻细胞质雄性不育及育性恢复的机理研究。近年来,国内外科学家已定位和克隆了控制细胞质雄性不育和育性恢复的基因。2006年华南农业大学刘耀光研究组在《ThePlantCell》上发表论文揭示:BoroII型水稻细胞质雄性不育由线粒体编码的细胞毒素肽引起,两个含PPR蛋白基因中的任何一个均可破坏或降解细胞毒素肽使植株育性恢复,从而在分子水平解释了BoroII型水稻细胞质雄性不育及育性恢复性的机理。这是中国科学家对植物细胞质雄性不育及育性恢复研究的最新贡献。

Since the successful development of the three-line combination of hybrid rice in China in the 1970s, there has been considerable interests in the studying the mechanisms of cytoplasmic male sterility and fertility restoration in rice. In recent years, a number of genetic loci for CMS and fertility restoration in rice have been identified and genes cloned by scientists in several countries. In 2006, a research group headed by Dr. Yaoguang Liu of South China Agricultural University published their work in The Plant Cell, in which they elucidated the molecular mechanisms for male sterility and fertility restoration in rice with BoroⅡ Cytoplasm. This is the big contributions on hybrid rice again dedicated by Chinese scientists.