Screening of dry and snap bean (Phaseolus vulgaris L.) genotypes for resistance to Bean common mosaic virus and Bean common mosaic necrosis virus

The most effective control of Bean common mosaic virus (BCMV) and necrosis (BCMNV) is achieved by using the seeds resistant cultivars. During conventional breeding, resistance against BCMV BCMNV in bean can be developed pyramiding strain-nonspecific dominant I gene with strain-specific recessive (bc-) genes for long-term control. In this study, a total 58 genotypes involving registered green dry cultivars, local genotypes, breeding lines were tested presence known genes. First all, each genotype was inoculated NL-3 strain NL-4 separately, plants evaluated symptom appearance DAS-ELISA to confirm or absence after three weeks sap-inoculation. last part investigated SCAR markers SW-13 linked SBD-5 bc-12. According phenotypic molecular tests, out tested, 37 involved gene, seven contained bc-22 bc-12 genes, respectively.