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. 2016 Dec 13;6:39020. doi: 10.1038/srep39020

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Copyright © 2016, The Author(s)

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(a) Based on the DNA sequence of 16S rRNA genes. (b) Based on the amino acid sequence of ribonucleotide reductase gene β-subunit nrdB. (c) Based on the DNA sequence of nrdB. The CLas cluster was labeled by the right brace.