ArticlePloS one2017
Three dominant awnless genes in common wheat: Fine mapping, interaction and contribution to diversity in awn shape and length.
Article in PloS one, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.
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Who cites it
29 citing papers in PubMed, 63 citations in OpenAlex.
- TaAGL6-B1 identified as a candidate gene for the dominant awn-inhibitor locus B2 in wheat.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2026Article
- A pendant awn phenotype linked to the EMBRYONIC FLOWER 1 LIKE (EMF1L) gene in barley.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2025Article
- Genetic Analysis of the Awn Length Gene in the Rice Chromosome Segment Substitution Line CSSL29.International journal of molecular sciences · 2025Article
- A wheat chromosome segment substitution line series supports characterization and use of progenitor genetic variation.The plant genome · 2024Article
- Mapping QTLs with additive and epistatic effects for awn length and their effects on kernel-related traits in common wheat.Frontiers in plant science · 2024Article
- The TaTCP4/10-B1 cascade regulates awn elongation in wheat (Triticum aestivum L.).Plant communications · 2023Article
- Development and characterization of a sorghum multi-parent advanced generation intercross (MAGIC) population for capturing diversity among seed parent gene pool.G3 (Bethesda, Md.) · 2023Article
- Form follows function in Triticeae inflorescences.Breeding science · 2023Article
- Characterization of Domestication Loci Associated with Awn Development in Rice.Rice (New York, N.Y.) · 2022Article
- Small EPIDERMAL PATTERNING FACTOR-LIKE2 peptides regulate awn development in rice.Plant physiology · 2022Article
- InDels Identification and Association Analysis with Spike and Awn Length in Chinese Wheat Mini-Core Collection.International journal of molecular sciences · 2022Article
- Mapping and Characterization of QTLs for Awn Morphology Using Crosses between "Double-Awn" Wheat 4045 and Awnless Wheat Zhiluowumai.Plants (Basel, Switzerland) · 2021Article
- Targeting thePlants (Basel, Switzerland) · 2021Article
- Review
- Genetic Interactions of Awnness Genes in Barley.Genes · 2021Review
- Unveiling the Actual Functions of Awns in Grasses: From Yield Potential to Quality Traits.International journal of molecular sciences · 2020Review
- Genetic Characterization of a Wheat Association Mapping Panel Relevant to Brazilian Breeding Using a High-Density Single Nucleotide Polymorphism Array.G3 (Bethesda, Md.) · 2020Article
- Identification of Quantitative Trait Loci Relating to Flowering Time, Flag Leaf and Awn Characteristics in a NovelPlants (Basel, Switzerland) · 2020Article
- Misexpression of a transcriptional repressor candidate provides a molecular mechanism for the suppression of awns by Tipped 1 in wheat.Journal of experimental botany · 2020Article
- Fine mapping and gene cloning in the post-NGS era: advances and prospects.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2020Review
Corrections and comments
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Authors and funding
8 authors at 4 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The awn is a long needle-like structure formed at the tip of the lemma in the florets of some grass species. It plays a role in seed dispersal and protection against animals, and can contribute to the photosynthetic activity of spikes. Three main dominant inhibitors of awn development (Hd, B1 and B2) are known in hexaploid wheat, but the causal genes have not been cloned yet and a genetic association with awn length diversity has been found only for the B1 allele. To analyze the prevalence of these three awning inhibitors, we attempted to predict the genotypes of 189 hexaploid wheat varieties collected worldwide using markers tightly linked to these loci. Using recombinant inbred lines derived from two common wheat cultivars, Chinese Spring and Mironovskaya 808, both with short awns, and a high-density linkage map, we performed quantitative trait locus analysis to identify tightly linked markers. Because this linkage map was constructed with abundant array-based markers, we converted the linked markers to PCR-based markers and determined the genotypes of 189 hexaploids. A significant genotype-phenotype correlation was observed at the Hd and B1 regions. We also found that interaction among these three awning inhibitors is involved in development of a membranous outgrowth at the base of awn resembling the Hooded mutants of barley. For the hooded awn phenotype, presence of the Hd dominant allele was essential but not sufficient, so B2 and other factors appear to act epistatically to produce the ectopic tissue. On the other hand, the dominant B1 allele acted as a suppressor of the hooded phenotype. These three awning inhibitors largely contribute to the genetic variation in awn length and shape of common wheat.
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