Genetic diversity and phylogeny of 55 slow-growing rhizobia isolated from peanut (Arachis hypogaea) in China were determined by analysis of host-plant range, phynotype, 16S rRNA RFLP, 16S rRNA sequence, 16S-23S IGS RFLP, RAPD, REP-PCR, DNA-DNA hybridization homology. At the same time, the competitive nodulation capacity of rhizobia, effect of host plants and soil pH on the rhizobia were determined for screening and improvement of high effective rhizobium inoculant.
Results of host-plant...