ArticlePlant physiology2016
A Developmental Switch of Gene Expression in the Barley Seed Mediated by HvVP1 (Viviparous-1) and HvGAMYB Interactions.
Article in Plant physiology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.
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Who cites it
20 citing papers in PubMed, 33 citations in OpenAlex.
- A Wild Emmer Wheat B3 Transcription Factor Regulates Seed Growth and Nutrient Allocation.Plant, cell & environment · 2026Article
- Review
- Regulation of HvASN1 expression by bZIP transcription factors during barley embryo development and germination.Planta · 2025Article
- Dual Regulatory Roles of SlGAMYB1 in Tomato Development: GA-Dependent and GA-Independent Mechanisms.Plants (Basel, Switzerland) · 2025Article
- Current Insights into Weak Seed Dormancy and Pre-Harvest Sprouting in Crop Species.Plants (Basel, Switzerland) · 2024Review
- Multifaceted roles of transcription factors during plant embryogenesis.Frontiers in plant science · 2023Review
- Wheat DOF transcription factors TaSAD and WPBF regulate glutenin gene expression in cooperation with SPA.PloS one · 2023Article
- A View into Seed Autophagy: From Development to Environmental Responses.Plants (Basel, Switzerland) · 2022Article
- Regulators of Starch Biosynthesis in Cereal Crops.Molecules (Basel, Switzerland) · 2021Review
- New insights on key genes involved in drought stress response of barley: gene networks reconstruction, hub, and promoter analysis.Journal, genetic engineering & biotechnology · 2021Article
- Genome-Wide Comparative Analysis of R2R3 MYB Gene Family inFrontiers in plant science · 2021Article
- The GAMYB gene in rye: sequence, polymorphisms, map location, allele-specific markers, and relationship with α-amylase activity.BMC genomics · 2020Article
- RicePlant physiology · 2020Article
- Reactive Oxygen Species (ROS) and Nucleic Acid Modifications During Seed Dormancy.Plants (Basel, Switzerland) · 2020Review
- Developmental Analysis ofFrontiers in plant science · 2020Article
- Charting oat (Avena sativa) embryo and endosperm transcription factor expression reveals differential expression of potential importance for seed development.Molecular genetics and genomics : MGG · 2019Article
- Integrated microRNA and transcriptome profiling reveals a miRNA-mediated regulatory network of embryo abortion under calcium deficiency in peanut (Arachis hypogaea L.).BMC genomics · 2019Article
- Molecular and epigenetic regulations and functions of the LAFL transcriptional regulators that control seed development.Plant reproduction · 2018Review
- Functional Characterization of TaFUSCA3, a B3-Superfamily Transcription Factor Gene in the Wheat.Frontiers in plant science · 2017Article
- Three Rice NAC Transcription Factors Heteromerize and Are Associated with Seed Size.Frontiers in plant science · 2016Article
Corrections and comments
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Authors and funding
7 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The accumulation of storage compounds in the starchy endosperm of developing cereal seeds is highly regulated at the transcriptional level. These compounds, mainly starch and proteins, are hydrolyzed upon germination to allow seedling growth. The transcription factor HvGAMYB is a master activator both in the maturation phase of seed development and upon germination, acting in combination with other transcription factors. However, the precise mechanism controlling the switch from maturation to germination programs remains unclear. We report here the identification and molecular characterization of Hordeum vulgare VIVIPAROUS1 (HvVP1), orthologous to ABA-INSENSITIVE3 from Arabidopsis thaliana HvVP1 transcripts accumulate in the endosperm and the embryo of developing seeds at early stages and in the embryo and aleurone of germinating seeds up to 24 h of imbibition. In transient expression assays, HvVP1 controls the activation of Hor2 and Amy6.4 promoters exerted by HvGAMYB. HvVP1 interacts with HvGAMYB in Saccharomyces cerevisiae and in the plant nuclei, hindering its interaction with other transcription factors involved in seed gene expression programs, like BPBF. Similarly, this interaction leads to a decrease in the DNA binding of HvGAMYB and the Barley Prolamine-Box binding Factor (BPBF) to their target sequences. Our results indicate that the HvVP1 expression pattern controls the full Hor2 expression activated by GAMYB and BPBF in the developing endosperm and the Amy6.4 activation in postgerminative reserve mobilization mediated by GAMYB. All these data demonstrate the participation of HvVP1 in antagonistic gene expression programs and support its central role as a gene expression switch during seed maturation and germination.
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