{Reference Type}: English Abstract {Title}: [Comigration of root nodule bacteria and bean plants to new habitats: coevolution mechanisms and practical importance (review)]. {Author}: Provorov NA;Zhukov VA;Kurchak ON;Onishchuk OP;Andronov EE;Borisov AIu;Chizhevskaia EP;Naumkina TS;Ovtsyna AO;Vorob'ev NI;Simarov BV;Tikhonovich IA; {Journal}: Prikl Biokhim Mikrobiol {Volume}: 49 {Issue}: 3 {Year}: May-Jun 2013 暂无{DOI}: 10.7868/s0555109913030148 {Abstract}: The review summarizes the results of studies on the comigration of tubercular bacteria and bean plants to new habitats, which is often accompanied by a decrease in the symbiosis efficiency due to a loss of the diversity of genes responsible for the interaction. This migration may lead to a rise in new symbionts as a result of gene transfers from initial symbionts to local bacteria. It was demonstrated that typically new symbionts lack an ability for N2 fixation but are highly competitive, blocking the inoculation of bean cultures by industrial strains. The design of coadapted systems of recognition and signal interaction of partners is a perspective approach to ensure competitive advantages of efficient rhizobia strains introduced into agrocenoses, together with host plants, over inactive local strains.