Not AvailableParents and 318 F8 recombinant inbred lines (RILs) derived from the cross, TAG
24 × ICGV 86031 were evaluated for peanut bud necrosis disease (PBND) resistance
and agronomic traits under natural infestation of thrips at a disease hotspot location
for 2 years. Significant genotype, environment and genotype × environment interac‐
tion effects suggested role of environment in development and spread of the disease.
Quantitative trait loci (QTL) analysis using QTL Cartographer identified a total of 14
QTL for six traits of which five QTL were for disease incidence. One quantitative trait
locus q60DI located on LG_AhII was identified using both QTL Cartographer and
QTL Network. Another QTL q90DI was detected with a high PVE of 12.57 using QTL
Cartographer. A total of nine significant additive × additive (AA) interactions were
detected for PBND disease incidence and yield traits with two and seven interactions
displaying effects in favour of the parental and recombinant genotype combinations,
respectively. This is the first attempt on QTL discovery associated with PBND resist‐
ance in peanut. Superior RILs identified in the study can be recycled or released as
variety following further evaluations.Not Availabl