polyploidy

Autopolyploidy A type of polyploidy involving the multiplication of chromo-some sets from only one species.

通常由同一个体，同一纯种染色体数目加倍而倍性现象。

Polyploidy is a mechanism often attributed to causing some speciation events in sympatry.

倍性常被当作引起在同一地区并存物种发生物种形事件一种机制。