| phylogenetic diversity of indigenous cowpea bradyrhizobia from soils in japan based on sequence analysis of the 16s-23s rrna internal transcribed spacer (its) region. | cowpea [vigna unguiculata (l.) walp.] is an important legume crop and yet its rhizobia have not been well characterized in many areas. in the present study, sequence analysis of the bacterial 16s-23s rrna internal transcribed spacer (its) region was performed to characterize genetically 76 indigenous cowpea rhizobia from five different geographic regions (okinawa, miyazaki, kyoto, fukushima and hokkaido) of japan. the sequence analysis clustered all isolates in the genus bradyrhizobium. they wer ... | 2011 | 21498019 |