In contrast to Rhizobium johnstonii strain 3841, R. johnstonii strain NaPi is able to form large pink nodules on the roots of pea (Pisum sativum L.) mutants in the gene Sym40. The genetic determinants underlying such efficiency have not been discovered yet. In this study, we report the complete genome sequence of the strain NaPi.
Keywords: legume-rhizobial symbiosis; nodule; symbiotic mutants.