ArticleJournal of experimental botany2017
Interactions between FLORAL ORGAN NUMBER4 and floral homeotic genes in regulating rice flower development.
Article in Journal of experimental botany, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
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15 citing papers in PubMed, 33 citations in OpenAlex.
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- The Multi-Pistil Phenomenon in Higher Plants.Plants (Basel, Switzerland) · 2025Review
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- OsmiRNA5488 Regulates the Development of Embryo Sacs and TargetsInternational journal of molecular sciences · 2023Article
- Analysis of Altered Flowering Related Genes in a Multi-Silique Rapeseed (Plants (Basel, Switzerland) · 2023Article
- Identification and characterization of a novel gene controlling floral organ number in rice (Oryza sativa L.).PloS one · 2023Article
- Transcriptome Analysis to Identify Genes Related to Flowering Reversion in Tomato.International journal of molecular sciences · 2022Article
- OsbZIP47 Is an Integrator for Meristem Regulators During Rice Plant Growth and Development.Frontiers in plant science · 2022Article
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- Molecular Control of Carpel Development in the Grass Family.Frontiers in plant science · 2021Review
- Cloning of long sterile lemma (lsl2), a single recessive gene that regulates spike germination in rice (Oryza sativa L.).BMC plant biology · 2020Article
- Knowing When to Silence: Roles of Polycomb-Group Proteins in SAM Maintenance, Root Development, and Developmental Phase Transition.International journal of molecular sciences · 2020Review
- Loss of LOFSEP Transcription Factor Function Converts Spikelet to Leaf-Like Structures in Rice.Plant physiology · 2018Article
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Authors and funding
8 authors at 3 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The floral meristem (FM) is self-maintaining at the early stages of flower development, but it is terminated when a fixed number of floral organs are produced. The FLORAL ORGAN NUMBER4 (FON4; also known as FON2) gene, an ortholog of Arabidopsis CLAVATA3 (CLV3), is required for regulating FM size and determinacy in rice. However, its interactions with floral homeotic genes remain unknown. Here, we report the genetic interactions between FON4 and floral homeotic genes OsMADS15 (an A-class gene), OsMADS16 (also called SUPERWOMAN1, SPW1, a B-class gene), OsMADS3 and OsMADS58 (C-class genes), OsMADS13 (a D-class gene), and OsMADS1 (an E-class gene) during flower development. We observed an additive phenotype in the fon4 double mutant with the OsMADS15 mutant allele dep (degenerative palea). The effect on the organ number of whorl 2 was enhanced in fon4 spw1. Double mutant combinations of fon4 with osmads3, osmads58, osmads13, and osmads1 displayed enhanced defects in FM determinacy and identity, respectively, indicating that FON4 and these genes synergistically control FM activity. In addition, the expression patterns of all the genes besides OsMADS13 had no obvious change in the fon4 mutant. This work reveals how the meristem maintenance gene FON4 genetically interacts with C, D, and E floral homeotic genes in specifying FM activity in monocot rice.
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