Transformation, conjugation, and transduction are the main forms of horizontal gene transfer in prokaryotes, but no clear clue was related with the mechanism of horizontal gene transfer in eukaryotes.

• 原核生物基因水平转移的主要方式有转化、接合和转导, 真核生物中水平转移发生方式尚不清楚。基因水平转移在基因、基因组和生物进化中有着其独特的作用。