Heterosis and differential gene expression in hybrids and parents in Bombyx mori by digital gene expression profiling.

ABSTRACT: Heterosis is a concern to all breeders, but the mechanism of heterosis remains unknown. In F1 organisms, genetic material is inherited from the two parents and theoretically, heterosis might be caused by differences in gene expression or modification. Differential gene expression was analyzed in hybrids and parents in Bombyx mori. The results showed that there were significant changes in gene expression in the fat body involving biological regulation, cellular and metabolic processes. Consistent trends in expression patterns covering different hybrid combinations were seen in 74 genes. Moreover, these differential gene expression patterns included overdominance, dominance, and additive effects. By correlating these patterns with economic traits, a potential relationship was found. Differen

SUBMITTER: Wang H 

PROVIDER: S-EPMC4348626 | biostudies-literature | 2015 Mar

REPOSITORIES: biostudies-literature