ArticleJournal of experimental botany2020
Gibberellin-mediated RGA-LIKE1 degradation regulates embryo sac development in Arabidopsis.
Article in Journal of experimental botany, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed, 34 citations in OpenAlex.
- The MdSLR1b-MdKNOX15-MdGA20ox2/MdGA2ox7 module regulates dwarfing by mediating the gibberellin pathway in apple.The Plant journal : for cell and molecular biology · 2026Article
- Gibberellin-induced parthenocarpy in fruits of a prickly pear mutant.Plant cell reports · 2025Article
- Genome-Wide Identification and Characterization of the GRAS Gene Family in Lettuce Revealed That SilencingPlants (Basel, Switzerland) · 2024Article
- Revisiting the female germline cell development.Frontiers in plant science · 2024Review
- DELLA proteins positively regulate seed size in Arabidopsis.Development (Cambridge, England) · 2023Article
- Moderate Salinity Stress Increases the Seedling Biomass in Oilseed Rape (Plants (Basel, Switzerland) · 2023Article
- Spatiotemporal formation of the large vacuole regulated by the BIN2-VLG module is required for female gametophyte development in Arabidopsis.The Plant cell · 2023Article
- Integrated microRNA and transcriptome profiling reveals the regulatory network of embryo abortion in jujube.Tree physiology · 2023Article
- Tonoplast proton pumps regulate nuclear spacing of female gametophytesFrontiers in plant science · 2022Article
- Genome-wide analysis and functional characterization of the DELLA gene family associated with stress tolerance in B. napus.BMC plant biology · 2021Article
Corrections and comments
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Authors and funding
6 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Ovule development is essential for plant survival, as it allows correct embryo and seed development upon fertilization. The female gametophyte is formed in the central area of the nucellus during ovule development, in a complex developmental programme that involves key regulatory genes and the plant hormones auxins and brassinosteroids. Here we provide novel evidence of the role of gibberellins (GAs) in the control of megagametogenesis and embryo sac development, via the GA-dependent degradation of RGA-LIKE1 (RGL1) in the ovule primordia. YPet-rgl1Δ17 plants, which express a dominant version of RGL1, showed reduced fertility, mainly due to altered embryo sac formation that varied from partial to total ablation. YPet-rgl1Δ17 ovules followed normal development of the megaspore mother cell, meiosis, and formation of the functional megaspore, but YPet-rgl1Δ17 plants had impaired mitotic divisions of the functional megaspore. This phenotype is RGL1-specific, as it is not observed in any other dominant mutants of the DELLA proteins. Expression analysis of YPet-rgl1Δ17 coupled to in situ localization of bioactive GAs in ovule primordia led us to propose a mechanism of GA-mediated RGL1 degradation that allows proper embryo sac development. Taken together, our data unravel a novel specific role of GAs in the control of female gametophyte development.
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