ArticleNature communications2024
MADS1-regulated lemma and awn development benefits barley yield.
Article in Nature communications, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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14 citing papers in PubMed, 20 citations in OpenAlex.
- COMPOSITUM 2/ WHEAT FRIZZY PANICLE dosage dependently regulates inflorescence and root architecture in Triticeae cereals.The Plant journal : for cell and molecular biology · 2026Article
- Epistatic interaction of the genesbioRxiv : the preprint server for biology · 2026Article
- To awn or not to awn: Revisiting the evolution of awnedness during rice domestication and improvement.Plant communications · 2026Review
- Regulation of spikelet number during wheat spike development.bioRxiv : the preprint server for biology · 2026Article
- Effect of Awns on Photosynthesis and Yield of Triticale Under Water Deficit Compared to Flag Leaves.Plants (Basel, Switzerland) · 2026Article
- The DTH8-SD1 pair regulates panicle architecture in rice.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
- G1-mediated OsMADS1 repression regulates sterile lemma development in rice.Plant cell reports · 2025Article
- VULGARE ROW-TYPE SIX 5 binds to the promoter of tillering and floral homeotic genes to regulate their expression.Plant physiology · 2025Article
- SHORT AND CROOKED AWN, encoding the epigenetic regulator EMF1, promotes barley awn development.Plant & cell physiology · 2025Article
- Article
- Identification and characterization of a novel QTL for barley yellow mosaic disease resistance from bulbous barley.The plant genome · 2025Article
- Genetic Analysis of the Awn Length Gene in the Rice Chromosome Segment Substitution Line CSSL29.International journal of molecular sciences · 2025Article
- Developmental constraint underlies the replicated evolution of grass awns.The New phytologist · 2025Article
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Authors and funding
9 authors at 4 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Floral organ shape and size in cereal crops can affect grain size and yield, so genes that regulate their development are promising breeding targets. The lemma, which protects inner floral organs, can physically constrain grain growth; while the awn, a needle-like extension of the lemma, creates photosynthate to developing grain. Although several genes and modules controlling grain size and awn/lemma growth in rice have been characterized, these processes, and the relationships between them, are not well understood for barley and wheat. Here, we demonstrate that the barley E-class gene HvMADS1 positively regulates awn length and lemma width, affecting grain size and weight. Cytological data indicates that HvMADS1 promotes awn and lemma growth by promoting cell proliferation, while multi-omics data reveals that HvMADS1 target genes are associated with cell cycle, phytohormone signaling, and developmental processes. We define two potential targets of HvMADS1 regulation, HvSHI and HvDL, whose knockout mutants mimic awn and/or lemma phenotypes of mads1 mutants. Additionally, we demonstrate that HvMADS1 interacts with APETALA2 (A-class) to synergistically activate downstream genes in awn/lemma development in barley. Notably, we find that MADS1 function remains conserved in wheat, promoting cell proliferation to increase awn length. These findings extend our understanding of MADS1 function in floral organ development and provide insights for Triticeae crop improvement strategies.
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