Gene duplication is one of the most important factors that influence the evolution of genome size, the origination of novel gene, the genetic robustness against null mutations, the speciation, etc. Duplication can be created by unequal crossing over, retroposition, or whole genome (or chromosomal) duplication. In this review, we summarized the studies of the molecular mechanisms of gene duplication, the preservation of duplicated gene, the selections acting on duplicated gene, the alternative ways of divergence and the evolution rate.
[Progress in the study of gene duplication] Publishing Authors By Initials
