Screening of eggplant genotypes for resistance to bacterial wilt disease caused by Clavibacter michiganensis subsp. michiganensis

Clavibacter michiganensis subsp. (Cmm) is one of the phytopathogenic bacteria causing bacterial wilt disease and severe yield losses in tomatoes other solanaceous vegetables. Although there are some reports on Cmm infections eggplants (Solanum melongena), no information available resistance sources genetic control to this crop. We performed a search for eggplants, set 46 genotypes including landraces, inbred lines cultivars cultivated wild relatives, as well an analysis resistance. A mixture different strains from genomic groups was used screening. Plants were inoculated through injection 10 µL suspension at concentration 107 cfu/mL single point stem. The symptoms recorded nine weeks after inoculation with 0-4 scale. differences observed collection evaluated, severity index ranging 0.00 4.00. While 31 displayed symptoms, three eggplant highly susceptible. Reciprocal F1 F2 generations obtained crosses between most susceptible genotype (CT30) resistant (CT49). adjusted dominant recessive gene model underlying Cmm. These results important selection breeding eggplants.