Immunity to Fusarium Wilt in the Tomato

Development of SRAP, SRAP-RGA, RAPD and SCAR markers linked with a Fusarium wilt resistance gene in eggplant

“…lycopersici, FOL) causes vascular wilt in tomato and has three reported races (Alexander and Tucker 1945;Bohn and Tucker 1939;Grattidge and O'Brien 1982). Race specificity of fusarium resistance has apparently evolved after tomato speciation because resistance to the different races has been identified in two wild tomato species Solanum pimpinellifolium (resistance to race 1 and 2), and S. pennellii (resistance to race 3).…”

The mechanism of preferential fertilization in tomatoes carrying the I-Allele for fusarium resistance

“…In the tomato (L. esculentum), a marked deviation from the expected ratio was found in segregation for resistance to race 1 of Fusarium oxysporum f. lycopersici (SACC.) (BOHN & TUCKER, 1940;KEDAR et al, 1967). This resistance is controlled by a single dominant gene I.…”

“…A surplus of resistant progenies was found whenever the heterozygous Ii plants were self-pollinated or served as male parents. BOHN & TUCKER (1940) expressed the opinion that the gene for resistance, Z, was linked with a gametophytic factor X, modifying the effectiveness of the pollen : those carrying the dominant allele were assumed to have a competitive advantage over pollen grains carrying the recessive allele x. This could explain the observed diversions from the expected Mendelian ratio.…”

Simple Mass-screening Methods for Resistance of Tomato to Fusarium oxysporum f. sp. lycopersici

“…Lycopersicon pimpinellifolium PI79532(Missouri accession 160)로부터 유래한 단일 우성 저항성 유전자 I에 의한 것이 다 (Bohn and Tucker, 1939). 그리고 I 유전자를 침해할 수 있는 race 2 균주에 대한 저항성은 L. esculentum × L. pimpinellifolium 의 교잡종인 PI126915에서 발견되었으며 I-2 유전자로 명명 되었다 (Cirulli and Alexander, 1966;Laterrot and Philouze, 1984).…”