ArticleTAG. Theoretical and applied genetics. Theoretische und angewandte Genetik2019
Genome mapping of quantitative trait loci (QTL) controlling domestication traits of intermediate wheatgrass (Thinopyrum intermedium).
Article in TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.
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Who cites it
12 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Perennials as Future Grain Crops: Opportunities and Challenges.Frontiers in plant science · 2022Pooled it
- Genome-wide association study identifies genomic regions under selection for domestication and agronomic traits in intermediate wheatgrass.The plant genome · 2026Article
- Improving complex agronomic and domestication traits in the perennial grain crop intermediate wheatgrass with genetic mapping and genomic prediction.The plant genome · 2025Article
- Review
- Genome Analysis ofPlants (Basel, Switzerland) · 2023Article
- Origin of current intermediate wheatgrass germplasm being developed for Kernza grain production.Research square · 2023Article
- Genetic architecture and QTL selection response for Kernza perennial grain domestication traits.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2022Article
- QTL for seed shattering and threshability in intermediate wheatgrass align closely with well-studied orthologs from wheat, barley, and rice.The plant genome · 2021Article
- Development of whole-genome prediction models to increase the rate of genetic gain in intermediate wheatgrass (Thinopyrum intermedium) breeding.The plant genome · 2021Article
- Nested association mapping reveals the genetic architecture of spike emergence and anthesis timing in intermediate wheatgrass.G3 (Bethesda, Md.) · 2021Article
- Enhancing Crop Domestication Through Genomic Selection, a Case Study of Intermediate Wheatgrass.Frontiers in plant science · 2020Article
- New Food Crop Domestication in the Age of Gene Editing: Genetic, Agronomic and Cultural Change Remain Co-evolutionarily Entangled.Frontiers in plant science · 2020Article
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14 authors.
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Abstract
Allohexaploid (2n = 6x = 42) intermediate wheatgrass (Thinopyrum intermedium), abbreviated IWG, is an outcrossing perennial grass belonging to the tertiary gene pool of wheat. Perenniality would be valuable option for grain production, but attempts to introgress this complex trait from wheat-Thinopyrum hybrids have not been commercially successful. Efforts to breed IWG itself as a dual-purpose forage and grain crop have demonstrated useful progress and applications, but grain yields are significantly less than wheat. Therefore, genetic and physical maps have been developed to accelerate domestication of IWG. Herein, these maps were used to identify quantitative trait loci (QTLs) and candidate genes associated with IWG grain production traits in a family of 266 full-sib progenies derived from two heterozygous parents, M26 and M35. Transgressive segregation was observed for 17 traits related to seed size, shattering, threshing, inflorescence capacity, fertility, stem size, and flowering time. A total of 111 QTLs were detected in 36 different regions using 3826 genotype-by-sequence markers in 21 linkage groups. The most prominent QTL had a LOD score of 15 with synergistic effects of 29% and 22% over the family means for seed retention and percentage of naked seeds, respectively. Many QTLs aligned with one or more IWG gene models corresponding to 42 possible domestication orthogenes including the wheat Q and RHT genes. A cluster of seed-size and fertility QTLs showed possible alignment to a putative Z self-incompatibility gene, which could have detrimental grain-yield effects when genetic variability is low. These findings elucidate pathways and possible hurdles in the domestication of IWG.
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