Genetic differences (Fst) among populations and patches using data from five microsatellite loci (Table S1).

The F-statistics (FST) values were calculated with GENETIX version 4.03, the significance of which was tested by comparison of the 95 and 99% confidence intervals derived from 1,000 bootstrap permutations individuals across sites.nsp>0.05,*p≤0.05,**p使用GENETIX 4.03软件计算F统计量（F-statistics，FST）值，其显著性通过对比1000次跨位点个体自举置换（bootstrap）所得的95%与99%置信区间进行检验。显著性标注规则为：nsp>0.05、*p≤0.05、**p。