ArticleCommunications biology2023
Integration of genetic and genomics resources in einkorn wheat enables precision mapping of important traits.
Article in Communications biology, 2023. 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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8 citing papers in PubMed.
- LOX-A4 shapes Triticum urartu gene pools and contributions to the A subgenome of polyploid wheat.Nature communications · 2026Article
- Genotyping analysis of over 130,000 CIMMYT bread wheat breeding lines: A decade-long effort in optimizing wheat genotyping.The plant genome · 2025Article
- Resequencing and phenotyping of the first highly inbred eggplant multiparent population revealHorticulture research · 2025Article
- Benchmarking of low coverage sequencing workflows for precision genotyping in eggplant.BMC plant biology · 2025Article
- A MYB family transcription factor TdRCA1 from wild emmer wheat regulates anthocyanin biosynthesis in coleoptile.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2024Article
- Alleles on locus chromosome 4B from different parents confer tiller number and the yield-associated traits in wheat.BMC plant biology · 2024Article
- TheCells · 2023Review
- Genomic characterization and gene bank curation ofFrontiers in plant science · 2023Article
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Authors and funding
18 authors.
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No grant is acknowledged in the PubMed record.
Abstract
Einkorn wheat (Triticum monococcum) is an ancient grain crop and a close relative of the diploid progenitor (T. urartu) of polyploid wheat. It is the only diploid wheat species having both domesticated and wild forms and therefore provides an excellent system to identify domestication genes and genes for traits of interest to utilize in wheat improvement. Here, we leverage genomic advancements for einkorn wheat using an einkorn reference genome assembly combined with skim-sequencing of a large genetic population of 812 recombinant inbred lines (RILs) developed from a cross between a wild and a domesticated T. monococcum accession. We identify 15,919 crossover breakpoints delimited to a median and average interval of 114 Kbp and 219 Kbp, respectively. This high-resolution mapping resource enables us to perform fine-scale mapping of one qualitative (red coleoptile) and one quantitative (spikelet number per spike) trait, resulting in the identification of small physical intervals (400 Kb to 700 Kb) with a limited number of candidate genes. Furthermore, an important domestication locus for brittle rachis is also identified on chromosome 7A. This resource presents an exciting route to perform trait discovery in diploid wheat for agronomically important traits and their further deployment in einkorn as well as tetraploid pasta wheat and hexaploid bread wheat cultivars.
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