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

多性常被当作引起在地区并存的物种发物种形成事件的种机制。

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

通常是由个，纯种的染色数目加而成的多性现象。