随着小麦生产水平的提高,小麦属内的遗传资源已不能满足需要,因此,利用远缘杂交从小麦近缘属、种中转移有利的基因资源便显得日益重要。远缘杂交的主要障碍之一是远缘材料间的不亲和性,常常需要借助桥梁材料实现有利基因的转移。来源于中国四川地方品种的“中国春”,由于具有kr_1、kr_2基因而与黑麦(Secale cereale L.)有较高的亲和性、与其它近缘属、种的亲和性也较好,因此,在遗传研究与育种实践中,“中国春”被广泛用作 With the improvement of wheat production level, the genetic resources within the genus Triticum can not meet the needs. Therefore, it is increasingly important to utilize distant hybridization to transfer the favorable gene resources from the relatives and species of wheat. One of the major obstacles to distant hybridization is the incompatibility of distant materials, often requiring the use of bridging materials for favorable gene transfer. Chinese Spring, which originated from Sichuan, China, has a higher affinity with Secale cereale L. due to its kr_1 and kr_2 genes, and better affinity with other relatives and species Therefore, “Chinese Spring” is widely used in genetic research and breeding practice