Bean Common Mosaic: Screening for Disease Resistance

antibodies antiserum aphid vectors assay Backcrossing BCMV resistance BCMV strains bean common mosaic bean cultivars bean genotypes bean plants bean seed black root breeding caused characteristic characterize chronic systemic infection CIAT combination common mosaic resistance common mosaic symptoms common mosaic virus containing countries cytoplasm depending detect Development diffuse dominant I gene dominant necrosis dominant resistance Drijfhout electron microscope electron microscopy evaluation expected F₂ field Figure genetic germplasm green grown I-gene immunosorbent important improved inclusions Incorporation individual inducing inoculated known Latin leaf lesions lines maintained materials microscope mosaic-susceptible necrosis-inducing strains necrotic observed obtained Once pathogenicity Phaseolus vulgaris placing possessing possible preferably presence primary leaves produce Program reaction recessive genes recommended requires Research responses restricted vein necrosis result Screening seedlings selected Serological tests showing strains of BCMV suitable susceptible bean symptomless systemic necrosis technique tissue transmission transmit BCMV tropical Unit usually viruses