MOLECULAR CHARACTERIZATION AND MAPPING OF THE ANTHRACNOSE RESISTANCE GENE IN THE ANDEAN COMMON BEAN CULTIVAR PERLA

摘要

The common bean {Phaseolus vulgaris L.) stands out as a culture of great importance in Brazil and worldwide. Among the main factors that affect common bean productivity, we can point out incidence of diseases (Singh and Schwartz, 2010). In this sense,anthracnose, caused by the fungus Colletotrichum lindemuthianum deserves special attention, as it can cause production losses up to 100% in susceptible cultivars, and in regions of subtropical climate, with moderate temperatures and high humidity. It ismost likely to be transmitted through contaminated seeds (Padder et al., 2017). Previous inheritance studies about anthracnose resistance, using races 65 and 73, revealed the presence of a single dominant resistance gene in Perla cultivar (Taboada et al., 2016). This cultivar is also resistant to race 2047, which shows to be an important source of anthracnose resistance. Therefore, this study had as objective to characterize and to map the anthracnose resistance gene of the Perla cultivar of common bean.