Abstract
Anthracnose caused by Colletotrichum lindemuthianum is one of the major diseases of common bean (Phaseolus vulgaris L.) worldwide. The aim of this study was to analyze common bean cultivars in Turkey for Co resistance genes using different molecular markers (SC08, SBB14, OPAZ04, SF10, OPF10, OPA18, SB12, TGA1, SAB3, SCAreoli, SZ04, and OPV20) linked with anthracnose resistance genes and evaluate the reaction of these cultivars to the pathogen isolates. The results showed the presence of Co-1, Co-14, Co-15, Co-2, Co-4, Co-42, Co-6, Co-10, Co-11, and Co-13 resistance genes, alone or combination except for Co-33 and Co-5, in common bean cultivars. These cultivars carried predominantly Co-6 and Co-4 genes for anthracnose resistance. Five cultivar (Sazova, Zulbiye, Akin, Onceler and Karacasehir 90), carrying Co-1, Co-14, Co-15, Co-2, Co-10, Co-13, Co-4, and Co-6 resistance genes were resistant to the pathogen isolates. These cultivars, showing a high level of resistance to the pathogen can be used as resistance sources in common bean breeding programs for resistance to anthracnose disease. These markers will provide significant benefit in breeding strategies.
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