ArticleNature communications2025
Analysis wheat wild relatives Thinopyrum intermedium and Roegneria kamoji genomes reveal different polyploid evolution paths.
Article in Nature communications, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 6 papers.
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6 citing papers in PubMed.
- Gb3 encodes a unique kinase fusion protein conferring greenbug resistance in wheat.Nature genetics · 2026Article
- An integrated molecular cytogenetic platform enables precise characterization of Thinopyrum ponticum chromatin and its structural modifications in wheat background.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2026Article
- Comparative Analysis of Triticeae Satellite Repeats Using Low-Coverage Sequencing, qPCR, and FISH.International journal of molecular sciences · 2026Article
- Review
- Introducing chromosome 1Ns from Leymus mollis improves grain protein content of recipient wheat.Plant cell reports · 2025Article
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Corrections and comments
- Erratum issued
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20 authors.
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Abstract
Many wild relatives of wheat in the Triticeae tribe provide important genetic resources for crop improvement, but their complex, polyploid genomes shaped by hybridization remain poorly understood. Here, we assemble and analyze the genomes of Thinopyrum intermedium and Roegneria kamoji, two species commonly used in wheat hybridization. We show that Th. intermedium contains genomic contributions from Pseudoroegneria (St), Dasypyrum (V), and Aegilops (J), while R. kamoji contains subgenomes related to Pseudoroegneria (St), Dasypyrum (V-related "Y"), and Hordeum (H). Phylogenomic evidence indicates that both species underwent independent polyploidization events, with Pseudoroegneria serving as the original maternal donor. R. kamoji likely evolved from tetraploid Roegneria. We also identify two Fhb7 homologs in the St and H subgenomes of R. kamoji that enhance Fusarium head blight resistance in a dosage-dependent manner. These findings refine the understanding of Triticeae polyploid evolution and offer valuable genomic resources for wheat improvement and forage breeding.
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