Genomic regions associated with resistance to peanut bud necrosis disease (PBND) in a recombinant inbred line (RIL) population

Parents 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 ge...

Full description

Saved in:
Bibliographic Details
Published in:Plant breeding 2019-12, Vol.138 (6), p.748-760
Main Authors: Jadhav, Yashoda, Manohar, Surendra S., Sunkad, Gururaj, Kannalli, Viswanatha P., Pandey, Manish K., Variath, Murali T., Yaduru, Shasidhar, Kona, Praveen, Varshney, Rajeev K., Pasupuleti, Janila
Format: Article
Language:English
Subjects:
Agronomy
Cartography
disease hotspot
Disease resistance
Environmental effects
Gene mapping
Genotype & phenotype
Genotype-environment interactions
Genotypes
Inbreeding
Incidence
Infestation
Necrosis
peanut bud necrosis disease
Peanuts
Phenotypic Variance
Quantitative trait loci
recombinant inbred line
simple sequence repeat
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Parents 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 interaction 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 resistance in peanut. Superior RILs identified in the study can be recycled or released as variety following further evaluations.
ISSN:0179-9541
1439-0523
DOI:10.1111/pbr.12743