Identifícation of RAPD markers linked to bacterial blight resistance genes in Phaseolous vulgaris L

Genetic studies indicate that resistance to bacterial blight is different depending on the source of resistance may be determined by both major and minor genes (Mcelroy 1985, Musaana el al, 1993. ). RAPD markers obtained from PCR amplification of genomic DNA with random primers have been successfully used for tagging genes of interest in common bean and other crops. For seed, pod and leaf reactions to CBB resistance in common bean, I. 2 and 3 putative QTLs, which accounted for 18%. 25% and 35% of the variation in CBB resistance were identified by Jung et al(l993). Nodari et al(1993) reported four putative QTLs. which acounted for 75% of the variation in CBB resistance, were identified ba.sed on RFLP markers.