Karyotype frequencies in each and pooled populations.

Locality names and numbers are consisted with those in Table 1;Roman numerals (I∼IX) represent different karyotypes;“*” Populations with more than 50% type IV.地点名称及编号均与表1所载内容一致；罗马数字（I~IX）代表不同的核型（karyotype）；标记有“*”的种群（population），其IV型占比超过50%。