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

多倍性常被当作引起地区并存的物发物形成事件的。

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

通常是由个体，纯的染色体数目加倍而成的多倍性现象。