ArticleJournal of experimental botany2015
Genetic evidence for differential selection of grain and embryo weight during wheat evolution under domestication.
Article in Journal of experimental botany, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.
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Who cites it
18 citing papers in PubMed.
- Identification, characterization, and associations with agronomic traits and early vigor of mature wheat embryo size loci.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2025Article
- Genome-wide association study identifies QTL and candidate genes for grain size and weight in a Triticum turgidum collection.The plant genome · 2025Article
- MRI-Seed-Wizard: combining deep learning algorithms with magnetic resonance imaging enables advanced seed phenotyping.Journal of experimental botany · 2025Article
- Meta-QTL analysis and candidate genes for quality traits, mineral content, and abiotic-related traits in wild emmer.Frontiers in plant science · 2024Article
- QTL mapping of yield components and kernel traits in wheat cultivars TAM 112 and Duster.Frontiers in plant science · 2022Article
- Genome-Wide Association Study of Kernel Traits Using a 35K SNP Array in Bread Wheat (Frontiers in plant science · 2022Article
- Genome-Wide Analysis Identified a Set of Conserved lncRNAs Associated with Domestication-Related Traits in Rice.International journal of molecular sciences · 2021Article
- Molecular Mapping and Genomics of Grain Yield in Durum Wheat: A Review.International journal of molecular sciences · 2020Review
- Variation in zinc concentration of sweetcorn kernels reflects source-sink dynamics influenced by kernel number.Journal of experimental botany · 2020Article
- Unraveling the genetic architecture of grain size in einkorn wheat through linkage and homology mapping and transcriptomic profiling.Journal of experimental botany · 2019Article
- GNI-A1 mediates trade-off between grain number and grain weight in tetraploid wheat.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2019Article
- A reductionist approach to dissecting grain weight and yield in wheat.Journal of integrative plant biology · 2019Review
- Genomic Regions From an Iranian Landrace Increase Kernel Size in Durum Wheat.Frontiers in plant science · 2019Article
- Applying the latest advances in genomics and phenomics for trait discovery in polyploid wheat.The Plant journal : for cell and molecular biology · 2019Review
- Article
- Genome-Wide Association Analyses Identify QTL Hotspots for Yield and Component Traits in Durum Wheat Grown under Yield Potential, Drought, and Heat Stress Environments.Frontiers in plant science · 2018Article
- In-depth genome characterization of a Brazilian common bean core collection using DArTseq high-density SNP genotyping.BMC genomics · 2017Article
- Evolutionary Metabolomics Reveals Domestication-Associated Changes in Tetraploid Wheat Kernels.Molecular biology and evolution · 2016Article
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3 authors.
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No grant is acknowledged in the PubMed record.
Abstract
Wheat is one of the Neolithic founder crops domesticated ~10 500 years ago. Following the domestication episode, its evolution under domestication has resulted in various genetic modifications. Grain weight, embryo weight, and the interaction between those factors were examined among domesticated durum wheat and its direct progenitor, wild emmer wheat. Experimental data show that grain weight has increased over the course of wheat evolution without any parallel change in embryo weight, resulting in a significantly reduced (30%) embryo weight/grain weight ratio in domesticated wheat. The genetic factors associated with these modifications were further investigated using a population of recombinant inbred substitution lines that segregated for chromosome 2A. A cluster of loci affecting grain weight and shape was identified on the long arm of chromosome 2AL. Interestingly, a novel locus controlling embryo weight was mapped on chromosome 2AS, on which the wild emmer allele promotes heavier embryos and greater seedling vigour. To the best of our knowledge, this is the first report of a QTL for embryo weight in wheat. The results suggest a differential selection of grain and embryo weight during the evolution of domesticated wheat. It is argued that conscious selection by early farmers favouring larger grains and smaller embryos appears to have resulted in a significant change in endosperm weight/embryo weight ratio in the domesticated wheat. Exposing the genetic factors associated with endosperm and embryo size improves our understanding of the evolutionary dynamics of wheat under domestication and is likely to be useful for future wheat-breeding efforts.
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