ArticleThe Plant cell2023
Multilayered regulation of developmentally programmed pre-anthesis tip degeneration of the barley inflorescence.
Article in The Plant cell, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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Who cites it
13 citing papers in PubMed, 32 citations in OpenAlex.
- Pre-anthesis light signaling of sheathed developing barley inflorescences defines floral fate.Journal of experimental botany · 2026Article
- Physiological and Transcriptomic Dissection of Inflorescence Degeneration inPlants (Basel, Switzerland) · 2026Article
- Grass inflorescence morphodynamics guides yield improvement in wheat.Nature plants · 2026Article
- The role of endogenous hormones in regulating grain number in oat panicles under drought stress across cultivars.Frontiers in plant science · 2026Article
- CLAVATA signalling shapes barley inflorescence by controlling activity and determinacy of shoot meristem and rachilla.Nature communications · 2025Article
- Multifaceted roles ofFrontiers in plant science · 2025Review
- EPAD1 Orthologs Play a Conserved Role in Pollen Exine Patterning.International journal of molecular sciences · 2024Article
- Transcription factors HB21/40/53 trigger inflorescence arrest through abscisic acid accumulation at the end of flowering.Plant physiology · 2024Article
- HOMEOBOX2, the paralog of SIX-ROWED SPIKE1/HOMEOBOX1, is dispensable for barley spikelet development.Journal of experimental botany · 2024Article
- Dynamic Phytomeric Growth Contributes to Local Adaptation in Barley.Molecular biology and evolution · 2024Article
- Grain yield trade-offs in spike-branching wheat can be mitigated by elite alleles affecting sink capacity and post-anthesis source activity.Journal of experimental botany · 2024Article
- Article
- Modulating apical tip degeneration of the barley inflorescence: A potential target for grain yield increase.The Plant cell · 2023Article
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17 authors at 1 institution in 1 country.
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Abstract
Leaf and floral tissue degeneration is a common feature in plants. In cereal crops such as barley (Hordeum vulgare L.), pre-anthesis tip degeneration (PTD) starts with growth arrest of the inflorescence meristem dome, which is followed basipetally by the degeneration of floral primordia and the central axis. Due to its quantitative nature and environmental sensitivity, inflorescence PTD constitutes a complex, multilayered trait affecting final grain number. This trait appears to be highly predictable and heritable under standardized growth conditions, consistent with a developmentally programmed mechanism. To elucidate the molecular underpinnings of inflorescence PTD, we combined metabolomic, transcriptomic, and genetic approaches to show that barley inflorescence PTD is accompanied by sugar depletion, amino acid degradation, and abscisic acid responses involving transcriptional regulators of senescence, defense, and light signaling. Based on transcriptome analyses, we identified GRASSY TILLERS1 (HvGT1), encoding an HD-ZIP transcription factor, as an important modulator of inflorescence PTD. A gene-edited knockout mutant of HvGT1 delayed PTD and increased differentiated apical spikelets and final spikelet number, suggesting a possible strategy to increase grain number in cereals. We propose a molecular framework that leads to barley PTD, the manipulation of which may increase yield potential in barley and other related cereals.
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