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Neighbor-joining phylogenetic tree showing the relationships of the representative sequences of 33 abundant OTUs of Bacillus-like bacterial communities obtained from the black soils. The numbers in the parentheses behind each OTU represents the average abundance of the OTU and the identity between the OTUs and the closest reference bacteria, and the numbers in the parentheses of reference bacterial strains indicate the accession numbers in the NCBI website.
