ArticlePlant physiology2012
Antagonistic interaction of BLADE-ON-PETIOLE1 and 2 with BREVIPEDICELLUS and PENNYWISE regulates Arabidopsis inflorescence architecture.
Article in Plant physiology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 50 papers.
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50 citing papers in PubMed, 88 citations in OpenAlex.
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- Transcriptome Analysis of Cabbage Near-Isogenic Lines Reveals the Involvement of the Plant Defensin GeneInternational journal of molecular sciences · 2025Article
- Regulation of meristem and hormone function revealed through analysis of directly-regulated SHOOT MERISTEMLESS target genes.Scientific reports · 2025Article
- Altered interactions between cis-regulatory elements partially resolve BLADE-ON-PETIOLE genetic redundancy in Capsella rubella.The Plant cell · 2024Article
- The REPLUMLESS Transcription Factor Controls the Expression of theInternational journal of molecular sciences · 2024Article
- Computational Reconstruction of the Transcription Factor Regulatory Network Induced by Auxin inPlants (Basel, Switzerland) · 2024Article
- A BLADE-ON-PETIOLE orthologue regulates corolla differentiation in the proximal region in Torenia fournieri.Nature communications · 2023Article
- Article
- SQUAMOSA PROMOTER BINDING PROTEIN-LIKE 9 and 13 repress BLADE-ON-PETIOLE 1 and 2 directly to promote adult leaf morphology in Arabidopsis.Journal of experimental botany · 2023Article
- Regulation of secondary growth by poplarFrontiers in plant science · 2023Article
- Flower Development in Arabidopsis.Methods in molecular biology (Clifton, N.J.) · 2023Article
- Genome-wide characterization of the TALE homeodomain family and the KNOX-BLH interaction network in tomato.Plant molecular biology · 2022Article
- Transcriptional landscapes of de novo root regeneration from detached Arabidopsis leaves revealed by time-lapse and single-cell RNA sequencing analyses.Plant communications · 2022Article
- Transcriptome landscape of early inflorescence developmental stages identifies key flowering time regulators in chickpea.Plant molecular biology · 2022Article
- Brachypodium distachyon UNICULME4 and LAXATUM-A are redundantly required for development.Plant physiology · 2022Article
- Genome-wide association and RNA-seq analyses identify loci for pod orientation in rapeseed (Frontiers in plant science · 2022Article
- Active suppression of leaflet emergence as a mechanism of simple leaf development.Nature plants · 2021Article
Corrections and comments
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Authors and funding
9 authors at 4 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The transition to flowering in many plant species, including Arabidopsis (Arabidopsis thaliana), is marked by the elongation of internodes to make an inflorescence upon which lateral branches and flowers are arranged in a characteristic pattern. Inflorescence patterning relies in part on the activities of two three-amino-acid loop-extension homeodomain transcription factors: BREVIPEDICELLUS (BP) and PENNYWISE (PNY) whose interacting products also promote meristem function. We examine here the genetic interactions between BP-PNY whose expression is up-regulated in stems at the floral transition, and the lateral organ boundary genes BLADE-ON-PETIOLE1 (BOP1) and BOP2, whose expression is restricted to pedicel axils. Our data show that bp and pny inflorescence defects are caused by BOP1/2 gain of function in stems and pedicels. Compatible with this, inactivation of BOP1/2 rescues these defects. BOP expression domains are differentially enlarged in bp and pny mutants, corresponding to the distinctive patterns of growth restriction in these mutants leading to compacted internodes and clustered or downward-oriented fruits. Our data indicate that BOP1/2 are positive regulators of KNOTTED1-LIKE FROM ARABIDOPSIS THALIANA6 expression and that growth restriction in BOP1/2 gain-of-function plants requires KNOTTED1-LIKE FROM ARABIDOPSIS THALIANA6. Antagonism between BOP1/2 and BP is explained in part by their reciprocal regulation of gene expression, as evidenced by the identification of lignin biosynthetic genes that are repressed by BP and activated by BOP1/2 in stems. These data reveal BOP1/2 gain of function as the basis of bp and pny inflorescence defects and reveal how antagonism between BOP1/2 and BP-PNY contributes to inflorescence patterning in a model plant species.
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