Files in this Data Supplement:
PCR amplification of nodC and nifH from seed extracts of inoculated plants (Fig. S1); PCR amplification of rpoB, nodC, and nifH of seed extracts from noninoculated plants fertilized with combined nitrogen (Fig. S2); growth of rhizobial strains in MM with diverse carbon and nitrogen sources (Table S1); growth of rhizobial strains under diverse stress conditions (Table S2); predicted CCGM1 CDS not shared with the Rhizobium group (R. phaseoli, R. etli) (Table S3A); predicted CCGM7 CDS not shared with the Sinorhizobium group (S. meliloti, S. medicae, S. fredii) (Table S3B); prediction of the genes of CCGM1 prophages (Table S4); presence or absence of genes related to nitrogen fixation and nodule development in rhizobia and K. pneumoniae (Table S5).
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