PHENOTYPE AND SNPs REVEALED AN ANTHRACNOSE RESISTANCE LOCUS IN ANDEAN COMMON BEAN LANDRACE BEIJA FLOR

摘要

Brazil is the world's largest producer and consumer of common beans (Phaseolus vulgaris). In this country, the anthracnose disease, caused by Colletotrichum lindemuthianum, reduces yield and quality of seeds and pods. Host resistance is the most cost-effective method to manage anthracnose. The Andean bean landrace Beija Flor has been reported as resistant to multiple Mesoamerican races of C. lindemuthianum (Vidigal Filho et al., 2008; Marcon, 2017; Souza et al., 2018). It has been suggested that anthracnose resistance genes of Andean origin confer resistance to Mesoamerican races of C. lindemuthianum (Goncalves-Vidigal et al. 2009). In this study, we report an anthracnose resistance locus in Beija Flor and used bulk segregant analysis and single nucleotide polymorphism (SNPs) markers to position the resistance locus of Beija Flor in the common bean genome.