Fig. 1

Rarefaction analyses for the observed number of OTUs from the two samples (four regions) at a genetic distance of 3%. Rarefaction curves for each region are displayed in different colors, a sample A1 and b sample B1
Rarefaction analyses for the observed number of OTUs from the two samples (four regions) at a genetic distance of 3%. Rarefaction curves for each region are displayed in different colors, a sample A1 and b sample B1