토마토 유전자원의 Ralstonia solanacearum에 의한 풋마름병 저항성 평가 = Resistance Evaluation of Tomato Germplasm against Bacterial Wilt by Ralstonia solanacearum

다국어 초록 (Multilingual Abstract)

This study was conducted to evaluate tomato plant resistance against bacterial wilt by Ralstonia solanacearumusing tomato cultivars or tomato breeding lines maintained in RDA-Genebank of Rural Development Administrationand to select resistant tomato lines for breeding purpose. We evaluated the disease responses of atotal of 13 cultivars and 39 breeding lines from RDA-Genebank using R. solanacearum SL341 strain, which is arepresentative strain in Korea. Tomato cultivar Hawaii 7996 and Moneymaker were used as a resistant controlplant and a susceptible control plant, respectively. A total of 32 cultivars were susceptible and 10 cultivarsshowed various disease response suggesting resistant phenotype segregation in the lines. Five commercialcultivars and 5 breeding lines exhibited strong resistance to bacterial wilt by the SL341 strain. These 5 breedinglines might be used for further study of plant defense response against bacterial wilt and cloning of theresistance gene from tomato plants. Ultimately, the selected lines could be used for tomato breeding to generatebacterial wilt resistant tomato plants.

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