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为在小麦生产上利用杂种优势,自50年代以来,世界上先后发现了二十多种近亲植物细胞质的小麦雄性不育体系,其中 T 型不育系是小麦杂优育种的主要基础材料。二十多年的实践表明,T 型不育系在普通小麦品种群体中恢复系极少,T.timopheevi 胞质与大多数小麦核基因型互作造成不育系种子皱缩,增加了研究的难度。70年代
To take advantage of heterosis in wheat production, more than 20 kinds of inbred wheat cytoplasm male sterility system have been discovered in the world since the 1950s. Among them, T male sterile line is the main basic material of heterosis breeding in wheat. More than two decades of practice have shown that T-CMS lines have very few restorer lines in common wheat cultivars. The interaction of T.timopheevi cytoplasm with most wheat nuclear genotypes resulted in shrinkage of CMS lines, Difficulty. 70’s