核仁显性
- 网络nucleolar dominance
核仁显性-
植物远缘杂交可以引起广泛的表观遗传变异，如：基因沉默、核仁显性、转座子激活、DNA甲基化变异等，而DNA甲基化尤其是胞嘧啶甲基化是表观遗传的主要调控机制之一。
Distant hybridization of plants can cause a wide range of apparent genetic variability , such as : gene silencing , nucleolar dominance , transposon activation , DNA methylation variations and so on , and DNA methylation , in particular cytosine methylation is one of the main epigenetic control mechanisms .