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Common wheat(Triticum aestivum L.) is one of the most important crops,and intra-specific wheat hybrids have obvious heterosis in yield and protein quality.Therefore,utilization of hybrid wheat varieties offers an effective way to increase yield and nutrition.Cytoplasmic male sterility(CMS) systems are a useful genetic tool for hybrid crop breeding,and are ideal models for studying the genetic interaction and cooperative function of mitochondrial and nuclear genomes in plants (Schnable and Wise,1998;Hanson and Bentolila,2004).The breeding of hybrid wheat using male sterility caused by the cytoplasm of T.timopheevii has been studied since the early 1960’s.But it is unsuccessful because there are some deficiencies in the practical application of this cytoplasm, including limited restoration resources,thin seeds,pre-harvest
Common wheat (Triticum aestivum L.) is one of the most important crops, and intra-specific wheat hybrids have obvious heterosis in yield and protein quality. Herefore, utilization of hybrid wheat varieties offers an effective way to increase yield and nutrition. Cytoplasmic male sterility (CMS) systems are a useful genetic tool for hybrid crop breeding, and are ideal models for studying the genetic interaction and cooperative function of mitochondrial and nuclear genomes in plants (Schnable and Wise, 1998; Hanson and Bentolila, 2004) of hybrid wheat using male sterility caused by the cytoplasm of T.timopheevii has been studied since the early 1960’s.But it is unsuccessful because there are some deficiencies in the practical application of this cytoplasm, including limited restoration resources, thin seeds, pre-harvest