Stripe rust is among the most destructive foliar diseases affecting wheat globally. The identification of novel
adult plant resistance loci represents a critical strategy for mitigating the substantial yield losses attributed to
stripe rust across diverse regions worldwide. Wheat landraces possess untapped genetic resources for abiotic
and biotic stresses including diseases like stripe rust. This study was conducted to identify the genetic basis of
adult plant resistance response in bread wheat landrace BWLR-2347 conserved at ICARDA gene bank. The
mapping population of 178 F2 individuals was genotyped with high quality genotype-by-sequencing derived
SNPs. The phenotypic disease assessment was carried out in F2:3 families derived from the cross between
resistant bread wheat landrace BWLR-2347 and susceptible Avocet “S” in the field under artificial inoculation
with a mixture of stripe rust races. Seven QTLs were identified for resistance to YR at the adult plant growth
stage and mapped on five chromosomes. The QTLs were detected on the 1B, 2A, 2B, 2D, and 5A regions. The
phenotypic variance explained by an individual QTL ranged from 2.01% to 5.59%. The study validated the six
previously identified QTL and reported a novel QTL at chromosome 5A. The information obtained from the
study will be helpful in wheat breeding programs towards the development of stripe rust resistant cultivars.
Primary Language | English |
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Subjects | Plant Biotechnology in Agriculture |
Journal Section | Articles |
Authors | |
Publication Date | December 24, 2024 |
Submission Date | September 16, 2024 |
Acceptance Date | December 1, 2024 |
Published in Issue | Year 2024 Volume: 29 Issue: 2 |
Turkish Journal of Field Crops is published by the Society of Field Crops Science and issued twice a year.
Owner : Prof. Dr. Behçet KIR
Ege University, Faculty of Agriculture,Department of Field Crops
Editor in Chief : Prof. Dr. Emre ILKER
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