ArticleTAG. Theoretical and applied genetics. Theoretische und angewandte Genetik2026
Exploring standing genetic variation for barley leaf rust resistance in Australian breeding panel.
Article in TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
2 citing papers in PubMed.
- A haplotype-based approach to explore genotype-by-environment interactions for barley yield.The plant genome · 2026Article
- Genomic prediction for grain yield and biotic stress resistance in field pea (Frontiers in plant science · 2026Article
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Authors and funding
14 authors.
Funding
Abstract
key messageA genotype-by-environment interaction analysis and haplotype mapping approach identifies novel haplo-blocks that can be combined with Rph20 for enhanced resistance against barley leaf rust. Barley (Hordeum vulgare L.) production worldwide is threatened by different rust diseases, particularly barley leaf rust (BLR) caused by fungus Puccinia hordei. Yet, very limited works have explored BLR resistance mechanism across multiple environments. This study explored genotype-by-environment interactions (GEI) in a BLR disease screening dataset collected over multiple years using a multi-environment trial (MET) analysis followed by iClass method. A haplotype-based approach, using local genomic estimated breeding values (LGEBVs), identified five environmentally stable genomic regions (haplo-blocks: 2HS-b000305, 5HS-b001038, 5HS-b001039, 5HS-b001040 and 5HL-b001125) associated with BLR resistance at adult plant stage. While haplo-block co-locating popular adult plant resistance (APR) gene Rph20 was validated as a key genomic region to drive stability in resistance across multiple environments, other haplo-blocks with high-effect haplotypes were also reported as prospective novel sources of stability. Notably, environmentally specific haplo-blocks offered insights into GEI-driven resistance mechanisms. The study also highlighted the potential of haplo-block stacking to improve adult plant resistance as genotypes with multiple favorable haplotypes demonstrated a linear relationship with enhanced BLR resistance. These findings hold practical implications for barley breeders, paving the way for more resilient cultivars and advancing breeding methodologies for complex traits like disease resistance.
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