Fig. 2

OTUs of microbial communities in rhizosphere and CK soils. a Flower plots showing the number of sample-specific OTUs (in the petals) and core OTUs (in the center) for all samples. b Venn diagram of OTUs observed as unique or shared among the four sites. The number of each site contains all the identified OTUs from all replicates. The above description also applies to c and d