Gene pyramiding for elite tomato genotypes against ToLCV (Begomovirus spp.), late blight (Phytophthora infestans) and RKN (Meloidogyne spp.) for northern India farmers.

ABSTRACT: Mega variety with multiple disease and pest tolerance is one of the major research objectives to protect the crop from biotic stresses in current scenario of climate change. Three tomato leaf curl virus resistance genes (Ty-1, Ty-2 and Ty-3), two late blight resistance genes (Ph-2 and Ph-3) and one root knot nematodes resistance gene (Mi-1.2) were pyramided from different donor parents with the help of marker-assisted backcrossing followed by phenotypic selection. During 2016-2017 (August-March), 100 lines of BC₁F₄ mapping population were evaluated against these diseases and pest screening. Punjab Chhuhara (a popular north Indian tomato cultivar) was used as a recipient parent that is suscept

SUBMITTER: Kumar A 

PROVIDER: S-EPMC6745573 | biostudies-literature | 2019 Sep

REPOSITORIES: biostudies-literature