Low yield of common bean, in Brazil, occurs mainly due to diseases such as anthracnose caused by Colletotrichum lindemuthianum Sacc & Magnus. Fifty physiological strains of this fungus have already been described races 31, 65 and 89 being the most important in the State of São Paulo. In the present work, six SCAR (Sequence-Characterized Amplified Regions) markers were evaluated in 42 parental lines and in 76 lines of the bean breeding program of Instituto Agronômico (IAC) aiming at to identify genotypes carrying resistance genes to C. lindemuthianum and the probable most frequent genes. Based on the SCAR markers, three parents and nine derived lines were identified as carrying four resistance genes, demonstrating the effectiveness of the markers for the on going breeding program. Co-6 was the most frequent resistance gene followed by Co-4², Co-3³, Co-5, and Co-4.
Anthracnose; Colletotrichum lindemuthianum; Phaseolus vulgaris; resistance genes; common beans
