论文部分内容阅读
首次报道了利用小麦 -簇毛麦二体代换系贵农 2 2与小麦中间偃麦草二体代换系遗 4 2 12杂交 ,在其杂种F2群体中染色体易位频率高达 3 7% ,其中既有臂间易位也有双插入易位 ,并出现小麦 -簇毛麦、小麦 -中间偃麦草染色体易位系 ,而贵农 2 2、遗 4 2 12与中国春杂交种F2群体中易位频率分别为 1 7%和 0 %。结果表明 :利用小麦的不同种属异源二体代换系之间相互杂交 ,既有可能是一条能产生高频易位的新途径 ,也是创造特殊遗传和育种材料的有效手段。
It was the first report that the frequency of chromosome translocation in F2 population of hybrids was as high as 37% using the crosses between you and the parents of wheat, There were both inter-armenian and trans-translocation, and the wheat-cluster wheat and wheat-Thinopyrum intermedium chromosomal translocations were found, while the translocations of Guinong 2 2 and gene 4 2 12 and Chinese spring hybrid F2 population The frequencies were 17% and 0% respectively. The results showed that the crossover between heterologous two-body substitution lines of different species in wheat could be a new way to produce high-frequency translocation as well as an effective means to create special genetic and breeding materials.