ArticleThe plant genome2020
A novel adult plant leaf rust resistance gene Lr2K38 mapped on wheat chromosome 1AL.
Article in The plant genome, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed.
- Uncovering the genetic basis of crown rust resistance in a northern-by-southern oat biparental population.PloS one · 2026Article
- Discovering leaf and stripe rust resistance in soft red winter wheat through genome-wide association studies.The plant genome · 2025Article
- Unveiling the underlying complexities in breeding for disease resistance in crop plants: review.Frontiers in plant science · 2025Review
- Wheat improvement through advances in single nucleotide polymorphism (SNP) detection and genotyping with a special emphasis on rust resistance.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2024Review
- Article
- An Update on Resistance Genes and Their Use in the Development of Leaf Rust Resistant Cultivars in Wheat.Frontiers in genetics · 2022Review
- Identification of Main-Effect and Environmental Interaction QTL and Their Candidate Genes for Drought Tolerance in a Wheat RIL Population Between Two Elite Spring Cultivars.Frontiers in genetics · 2021Article
- A novel adult plant leaf rust resistance gene Lr2K38 mapped on wheat chromosome 1AL.The plant genome · 2020Article
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Authors and funding
12 authors.
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No grant is acknowledged in the PubMed record.
Abstract
Soft red winter wheat (SRWW) cultivar AGS 2038 has a high level of seedling and adult plant leaf rust (LR) resistance. To map and characterize LR resistance in AGS 2038, a recombinant inbred line (RIL) population consisting of 225 lines was developed from a cross between AGS 2038 and moderately resistant line UGA 111729. The parents and RIL population were phenotyped for LR response in three field environments at Plains and Griffin, GA, in the 2017-2018 and 2018-2019 growing seasons, one greenhouse environment at the adult-plant stage, and at seedling stage. The RIL population was genotyped with the Illumina iSelect 90K SNP marker array, and a total of 7667 polymorphic markers representing 1513 unique loci were used to construct a linkage map. Quantitative trait loci (QTL) analysis detected six QTL, QLr.ags-1AL, QLr.ags-2AS, QLr.ags-2BS1, QLr.ags-2BS2, QLr.ags-2BS3, and QLr.ags-2DS, for seedling and adult plant LR resistance. Of these, the major adult plant leaf rust resistance QTL, QLr.ags-1AL, was detected on all field and greenhouse adult plant tests and explained up to 34.45% of the phenotypic variation. QLr.ags-1AL, tightly flanked by IWB20487 and IWA4022 markers, was contributed by AGS 2038. Molecular marker analysis using a diagnostic marker linked to Lr59 showed that QLr.ags-1AL was different from Lr59, the only known LR resistance gene on 1AL. Therefore, the QTL was temporarily designated as Lr2K38. Lr2K38-linked marker IWB20487 was highly polymorphic among 30 SRWW lines and should be useful for selecting the Lr2K38 in wheat breeding programs.
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