Inheritance of Resistance to Tomato Yellow Leaf Curl Virus (TYLCV) in Lycopersicon pimpinellifolium. M. A. Kasrawi, Faculty of Agriculture, University of Jordan, Amman. . Plant Dis. 73:435-437. Accepted for publication 20 October 1988. Copyright 1989 The American Phytopathological Society. DOI: 10.1094/PD-73-0435.

The inheritance of resistance in Lycopersicon pimpinellifolium to tomato yellow leaf curl virus (TYLCV) was studied in progenies derived from crosses between the resistant parents L. pimpinellifolium Hirsute-INRA and LA 1478 and the susceptible parent L. esculentum ‘Special Back’. Resistance appeared to be stable in these parents. Field-grown seedlings were subjected to natural infection with the tomato yellow leaf curl virus. Analysis of F₁, F₂, and backcross populations from crosses of L. pimpinellifolium with the susceptible cultivar revealed that resistance is controlled by a single dominant gene. It is suggested that the symbol Tylc be assigned for this gene in L. pimpinellifolium.

Keyword(s): disease resistance.