ArticleBMC genetics2019
Copy number variation of Ppd-B1 is the major determinant of heading time in durum wheat.
Article in BMC genetics, 2019. 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.
- Genomic prediction models for morpho-phenological traits in durum wheat based on Vrn, Ppd, and Rht alleles.The plant genome · 2025Article
- AcRR1 of Agropyron cristatum boosts wheat yield by regulating grain number per spike and heading date.Nature communications · 2025Article
- Identification of robust yield quantitative trait loci derived from cultivated emmer for durum wheat improvement.The plant genome · 2025Article
- Novel PHOTOPERIOD-1 gene variants associate with yield-related and root-angle traits in European bread wheat.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2024Article
- A new winter wheat genetic resource harbors untapped diversity from synthetic hexaploid wheat.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2024Article
- Exploring Pan-Genomes: An Overview of Resources and Tools for Unraveling Structure, Function, and Evolution of Crop Genes and Genomes.Biomolecules · 2023Review
- Pyramiding Fusarium head blight resistance QTL from T. aestivum, T. dicoccum and T. dicoccoides in durum wheat.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2023Article
- Analysis of Genome Structure and Its Variations in Potato Cultivars Grown in Russia.International journal of molecular sciences · 2023Article
- Progenitor species hold untapped diversity for potential climate-responsive traits for use in wheat breeding and crop improvement.Heredity · 2022Review
- Dissecting the Genetic Architecture of Phenology Affecting Adaptation of Spring Bread Wheat Genotypes to the Major Wheat-Producing Zones in India.Frontiers in plant science · 2022Article
- Yield-Related QTL Clusters and the Potential Candidate Genes in Two Wheat DH Populations.International journal of molecular sciences · 2021Article
- Effect of Flowering Time-Related Genes on Biomass, Harvest Index, and Grain Yield in CIMMYT Elite Spring Bread Wheat.Biology · 2021Article
- Major flowering time genes of barley: allelic diversity, effects, and comparison with wheat.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2021Review
- The Effect of Photoperiod Genes and Flowering Time on Yield and Yield Stability in Durum Wheat.Plants (Basel, Switzerland) · 2020Article
- Genomic Regions Associated with the Control of Flowering Time in Durum Wheat.Plants (Basel, Switzerland) · 2020Article
- Identification of Quantitative Trait Loci Relating to Flowering Time, Flag Leaf and Awn Characteristics in a NovelPlants (Basel, Switzerland) · 2020Article
- Allelic Variation at the Vernalization Response (Frontiers in plant science · 2020Article
- Quantitative trait loci for agronomic traits in tetraploid wheat for enhancing grain yield in Kazakhstan environments.PloS one · 2020Article
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5 authors.
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Abstract
backgroundHeading time is an important adaptive trait in durum wheat. In hexaploid wheat, Photoperiod-1 (Ppd) loci are essential regulators of heading time, with Ppd-B1 conferring photoperiod insensitivity through copy number variations (CNV). In tetraploid wheat, the D-genome Ppd-D1 locus is absent and generally, our knowledge on the genetic architecture underlying heading time lacks behind that of bread wheat.
resultsIn this study, we employed a panel of 328 diverse European durum genotypes that were evaluated for heading time at five environments. Genome-wide association mapping identified six putative QTL, with a major QTL on chromosome 2B explaining 26.2% of the genotypic variance. This QTL was shown to correspond to copy number variation at Ppd-B1, for which two copy number variants appear to be present. The higher copy number confers earlier heading and was more frequent in the heat and drought prone countries of lower latitude. In addition, two other QTL, corresponding to Vrn-B3 (TaFT) and Ppd-A1, were found to explain 9.5 and 5.3% of the genotypic variance, respectively.
conclusionsOur results revealed the yet unknown role of copy number variation of Ppd-B1 as the major source underlying the variation in heading time in European durum wheat. The observed geographic patterns underline the adaptive value of this polymorphism and suggest that it is already used in durum breeding to tailor cultivars to specific target environments. In a broader context our findings provide further support for a more widespread role of copy number variation in mediating abiotic and biotic stress tolerance in plants.
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