ArticleThe New phytologist2019
Interaction between row-type genes in barley controls meristem determinacy and reveals novel routes to improved grain.
Article in The New phytologist, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.
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Who cites it
31 citing papers in PubMed.
- Morphological basis for the development of pistillate and staminate florets in a dioecious species of Poa (Poeae, Pooideae, Poaceae).Plant reproduction · 2026Article
- An Effective YOLOv11 Grain Detection Model Trained on Intact Barley Spikes Reveals a QTL Containing a Pivotal Regulator of Lateral Spikelet Formation.Plants (Basel, Switzerland) · 2026Article
- Novel genome editing approaches to manipulate apical meristem activity for crop yield.Frontiers in plant science · 2026Review
- VULGARE ROW-TYPE SIX 5 binds to the promoter of tillering and floral homeotic genes to regulate their expression.Plant physiology · 2025Article
- Article
- CLAVATA signalling shapes barley inflorescence by controlling activity and determinacy of shoot meristem and rachilla.Nature communications · 2025Article
- HOMEOBOX2, the paralog of SIX-ROWED SPIKE1/HOMEOBOX1, is dispensable for barley spikelet development.Journal of experimental botany · 2024Article
- Anatomical insights into the vascular layout of the barley rachis: implications for transport and spikelet connection.Annals of botany · 2024Article
- Natural variations of HvSRN1 modulate the spike rachis node number in barley.Plant communications · 2024Article
- Genome-wide screening of meta-QTL and candidate genes controlling yield and yield-related traits in barley (Hordeum vulgare L.).PloS one · 2024Article
- Article
- Auxins and grass shoot architecture: how the most important hormone makes the most important plants.Journal of experimental botany · 2023Review
- Multilayered regulation of developmentally programmed pre-anthesis tip degeneration of the barley inflorescence.The Plant cell · 2023Article
- Advancing the Conservation and Utilization of Barley Genetic Resources: Insights into Germplasm Management and Breeding for Sustainable Agriculture.Plants (Basel, Switzerland) · 2023Review
- Genetic Dissection of Spike Productivity Traits in the Siberian Collection of Spring Barley.Biomolecules · 2023Article
- Just enough fruit: understanding feedback mechanisms during sexual reproductive development.Journal of experimental botany · 2023Review
- Article
- Wild barley (Hordeum spontaneum) and landraces (Hordeum vulgare) from Turkey contain an abundance of novel Rhynchosporium commune resistance loci.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2023Article
- Positional cloning identified HvTUBULIN8 as the candidate gene for round lateral spikelet (RLS) in barley (Hordeum vulgare L.).TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2023Article
- The double round-robin population unravels the genetic architecture of grain size in barley.Journal of experimental botany · 2022Article
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3 authors.
Funding
Abstract
Hordeum species develop a central spikelet flanked by two lateral spikelets at each inflorescence node. In 'two-rowed' spikes, the central spikelet alone is fertile and sets grain, while in 'six-rowed' spikes, lateral spikelets can also produce grain. Induced loss-of-function alleles of any of five Six-rowed spike (VRS) genes (VRS1-5) cause complete to intermediate gains of lateral spikelet fertility. Current six-row cultivars contain natural defective vrs1 and vrs5 alleles. Little information is known about VRS mechanism(s). We used comparative developmental, expression and genetic analyses on single and double vrs mutants to learn more about how VRS genes control development and assess their agronomic potential. We show that all VRS genes repress fertility at carpel and awn emergence in developing lateral spikelets. VRS4, VRS3 and VRS5 work through VRS1 to suppress fertility, probably by inducing VRS1 expression. Pairing vrs3, vrs4 or vrs5 alleles increased lateral spikelet fertility, despite the presence of a functional VRS1 allele. The vrs3 allele caused loss of spikelet identity and determinacy, improved grain homogeneity and increased tillering in a vrs4 background, while with vrs5, decreased tiller number and increased grain weight. Interactions amongst VRS genes control spikelet infertility, determinacy and outgrowth, and novel routes to improving six-row grain.
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