Inheritance of antixenosis character resistance of Solanum pennellii to tomato leafminer in crossing with 'Santa Clara'

The inheritance of antixenosis resistance characters to Tuta absoluta populations F2 and backcrosses and parental generations were evaluated on crossings involving Solanum lycopersicum cv. Santa Clara and S. pennellii (LA 716). The characters number of eggs per leaf, number of small mines, number of large mines and total number of mines were evaluated. There is indicative of polygenic inheritance in controlling the number of eggs per leaf, number of large mines and the total number of mines. Based on averages there is partial dominance for higher number of eggs per leaf, number of small mines, number of large mines and total number of mines. Both the complete model and the additive-dominant are appropriate to the study of the inheritance of the number of small mines and the total number of mines, the additive effect being the most important in determining the character of resistance. The total number of mines, as the character of resistance to tomato leafminer is important in breeding programs that aim to obtain a resistant variety from crossing between 'Santa Clara' x LA 716.

Solanum spp.; Tuta absoluta; genetic control; genetic resources