ArticleMolecular horticulture2022
A regulatory GhBPE-GhPRGL module maintains ray petal length in Gerbera hybrida.
Article in Molecular horticulture, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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9 citing papers in PubMed, 12 citations in OpenAlex.
- Histone deacetylation links jasmonic acid signaling to flower size control in rose.Molecular horticulture · 2026Article
- Augmenting plant-pollinator interactions to promote biodiversity and global food security.Frontiers in plant science · 2026Review
- GhmiR156-International journal of molecular sciences · 2025Article
- Sizing up beauty: Mechanisms of petal size regulation in ornamental plants.Plant physiology · 2025Review
- Transcriptome analysis reveals the mechanisms underlying petal growth during the flower opening process in Phalaenopsis orchids.BMC plant biology · 2025Article
- Genome-wide identification, characterization, and expression analysis of BZR transcription factor family in Gerbera hybrida.BMC plant biology · 2025Article
- Pectin methylesterase inhibitor 58 negatively regulates ray petal elongation by inhibiting cell expansion in Gerbera hybrida.Plant cell reports · 2025Article
- A GASA Protein Family Gene,International journal of molecular sciences · 2024Article
- ABA Signaling De-Repression Coordinates With Cytokinin to Drive Large Petal Formation in Brassica napus.Physiologia plantarumArticle
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Authors and funding
6 authors at 2 institutions in 1 country.
Funding
Abstract
The molecular mechanism regulating petal length in flowers is not well understood. Here we used transient transformation assays to confirm that GhPRGL (proline-rich and GASA-like)-a GASA (gibberellic acid [GA] stimulated in Arabidopsis) family gene-promotes the elongation of ray petals in gerbera (Gerbera hybrida). Yeast one-hybrid screening assay identified a bHLH transcription factor of the jasmonic acid (JA) signaling pathway, here named GhBPE (BIGPETAL), which binds to the GhPRGL promoter and represses its expression, resulting in a phenotype of shortened ray petal length when GhBPE is overexpressed. Further, the joint response to JA and GA of GhBPE and GhPRGL, together with their complementary expression profiles in the early stage of petal growth, suggests a novel GhBPE-GhPRGL module that controls the size of ray petals. GhPRGL promotes ray petal elongation in its early stage especially, while GhBPE inhibits ray petal elongation particularly in the late stage by inhibiting the expression of GhPRGL. JA and GA operate in concert to regulate the expression of GhBPE and GhPRGL genes, providing a regulatory mechanism by which ray petals could grow to a fixed length in gerbera species.
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