Abstract:

In recent years, our undersranding of the fundamontal biological process of heterosis has been greatly advanced. This paper reviews the mechanism of heterosis, cytoplasmic male sterility, prediction of heterosis and potential uses of heterosis in plant breeding.

Key words: Heterosis Cytoplasmic male sterility Gene engineering

摘要：

杂种优势是一种普遍的生物学现象,近年来,杂种优势研究有了较大进展.本文综述了杂种优势的机理,细胞质雄性不育机理,杂种比势预测以及杂种优势利用等方面研究进展.

关键词: 杂种优势, 细胞质雄性不育, 基因工程