论文部分内容阅读
Genetic recombination results in novel allele combinations and is the most important genetic phenomenon for generating variation in breeding populations.However, in most organisms,the number of geneticrecombinations is tightly constrained, which hampers the introgression of new genetic traits and limits genetic variation during agricultural breeding.Therefore, the possibility of increasing genetic recombination frequency has attracted much interest from crop breeders because of the obvious practical applications in traditional breeding.However,to date, the goal of increasing the recombination frequency has not been achieved in crops.