Abstract
National Agrobiodiversity Center, National Academy of Agricultural Science, Rural Development Administration,Suwon 441-853, Korea(Received on October 5, 2012; Revised on December 13, 2012; Accepted on December 14, 2012)Fusarium wilt, caused by three races of Fusarium oxysporum f. sp. lycopersici, is one of the most importantdisease of tomato ( Solanum lycopersicum ) worldwide. A total of 1,906 tomato accessions were screened for theresistance to Fusarium wilt using I-3 SNP marker and high resolution melting analysis. Results showed that97 accessions were homozygous resistant, 8 accessions were heterozygous resistant and 1,801 werehomozygous susceptible. Accessions containing resistance were identified in 65 accessions of S. lycopersicumvar. lycopersicum, 13 accessions of S. lycopericum var. cerasiform, 8 accessions of S. pimpinellifolium, 3accessions of S. habrochaites , 3 accessions of S. corneliomulleri , 1 accession of S. galapagense , 3 accessions of S.peruvianum, 1 accession of S. chilense. For accurate evaluation of the Fusarium wilt resistance, however,screening to race 1 and race 2 and bio-assay still remain to be evaluated.Keywords : Fusarium wilt, I-3, Resistant resources
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