State Key Laboratory of Crop Biology, Shandong Agricultural University, Taian, Shandong 271018, China.
College of Agronomy, Shandong Agricultural University, Taian, Shandong 271018, China.
Nat Commun. 2017 Apr 28;8:15121. doi: 10.1038/ncomms15121.
Male sterility is a valuable trait for plant breeding and hybrid seed production. The dominant male-sterile gene Ms2 in common wheat has facilitated the release of hundreds of breeding lines and cultivars in China. Here, we describe the map-based cloning of the Ms2 gene and show that Ms2 confers male sterility in wheat, barley and Brachypodium. MS2 appears as an orphan gene within the Triticinae and expression of Ms2 in anthers is associated with insertion of a retroelement into the promoter. The cloning of Ms2 has substantial potential to assemble practical pipelines for recurrent selection and hybrid seed production in wheat.
雄性不育是植物育种和杂交种子生产的一个有价值的特性。普通小麦中的显性雄性不育基因 Ms2 促进了中国数百个育种系和品种的释放。在这里，我们描述了 Ms2 基因的图谱克隆，并表明 Ms2 在小麦、大麦和短柄草中导致雄性不育。MS2 似乎是小麦族中的一个孤儿基因，花药中 Ms2 的表达与启动子中逆转录元件的插入有关。Ms2 的克隆具有组装小麦轮回选择和杂交种子生产实用流水线的巨大潜力。
