ArticlePlant communications2022
Whole-genome resequencing of the wheat A subgenome progenitor Triticum urartu provides insights into its demographic history and geographic adaptation.
Article in Plant communications, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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7 citing papers in PubMed, 11 citations in OpenAlex.
- Transposable element-driven expansion of enhancer RNA repertoires underlies regulatory innovation and polyploid adaptation in cereal crops.Plant communications · 2026Article
- LOX-A4 shapes Triticum urartu gene pools and contributions to the A subgenome of polyploid wheat.Nature communications · 2026Article
- Unlocking the genetic potential ofFrontiers in plant science · 2026Review
- Harnessing primary, secondary and tertiary genepools for durable wheat disease resistance.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2025Review
- Whole-genome sequencing analysis of soybean diversity across different countries and selection signature of Korean soybean accession.G3 (Bethesda, Md.) · 2024Article
- High-density genetic map construction and QTL mapping to identify genes for blight defense- and yield-related traits in sesame (Frontiers in plant science · 2024Article
- Genetic basis of local adaptation in the cold-tolerant mangroveFrontiers in plant science · 2024Article
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Authors and funding
16 authors at 8 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Triticum urartu is the progenitor of the A subgenome in tetraploid and hexaploid wheat. Uncovering the landscape of genetic variations in T. urartu will help us understand the evolutionary and polyploid characteristics of wheat. Here, we investigated the population genomics of T. urartu by genome-wide sequencing of 59 representative accessions collected around the world. A total of 42.2 million high-quality single-nucleotide polymorphisms and 3 million insertions and deletions were obtained by mapping reads to the reference genome. The ancient T. urartu population experienced a significant reduction in effective population size (Ne) from ∼3 000 000 to ∼140 000 and subsequently split into eastern Mediterranean coastal and Mesopotamian-Transcaucasian populations during the Younger Dryas period. A map of allelic drift paths displayed splits and mixtures between different geographic groups, and a strong genetic drift towards hexaploid wheat was also observed, indicating that the direct donor of the A subgenome originated from northwestern Syria. Genetic changes were revealed between the eastern Mediterranean coastal and Mesopotamian-Transcaucasian populations in genes orthologous to those regulating plant development and stress responses. A genome-wide association study identified two single-nucleotide polymorphisms in the exonic regions of the SEMI-DWARF 37 ortholog that corresponded to the different T. urartu ecotype groups. Our study provides novel insights into the origin and genetic legacy of the A subgenome in polyploid wheat and contributes a gene repertoire for genomics-enabled improvements in wheat breeding.
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