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A CAPS marker TAO1 902 diagnostic for the I‐2 gene conferring resistance to Fusarium oxysporum f. sp. lycopersici race 2 in tomato
Author(s) -
Staniaszek M.,
Kozik E. U.,
Marczewski W.
Publication year - 2007
Publication title -
plant breeding
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.583
H-Index - 71
eISSN - 1439-0523
pISSN - 0179-9541
DOI - 10.1111/j.1439-0523.2007.01355.x
Subject(s) - fusarium oxysporum f.sp. lycopersici , biology , fusarium wilt , germplasm , fusarium oxysporum , gene , genotype , cultivar , allele , hybrid , genetics , fusarium , solanaceae , horticulture , botany
Abstract Fusarium oxysporum f. sp. lycopersici inhabits most tomato‐growing regions worldwide, causing tomato production yield losses. A molecular marker linked to resistance would be useful for tomato improvement programmes. Thus, a cleaved amplified polymorphic sequence (CAPS) marker TAO1 902 was developed to identify tomato genotypes possessing the I‐2 gene, which confers resistance to F. o. lycopersici race 2. The Rsa I or Fok I restriction fragments corresponded to the presence or absence of the I‐2 allele in a segregating 100 F 2 progeny, tomato cultivars, 16 resistant and 20 susceptible to Fusarium wilt, respectively, lines and F 1 hybrids, representing various tomato gene pools. TAO1 902 may be helpful for selection of F. o. lycopersici ‐resistant tomato germplasm.