如何克服籼稻和粳稻杂种育性下降、结实率很低问题,是水稻育种家们几十年来苦苦求索的。中国科学院院士、华中农业大学教授张启发领衔的研究团队最近在这一领域取得重大进展,发现并成功分离克隆一个控制水稻籼粳杂种育性和广亲和性状的主效基因,命名为S5。该研究成果在水稻品种改良中具有重大应用前景。 How to overcome the decline of hybrid fertility in indica and japonica rice and the low rate of seed setting are the problems that rice breeders have been searching for for decades. The research team headed by Zhang Qifa, an academician of the Chinese Academy of Sciences and a professor at Huazhong Agricultural University, made significant progress in this field recently. It discovered and successfully isolated and cloned a major gene that controls the indica-japonica hybrid and broad-compatibility traits in rice, and named S5. The research results have great application prospects in rice variety improvement.