ArticleThe Plant cell2001
KNAT2: evidence for a link between knotted-like genes and carpel development.
Article in The Plant cell, 2001. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 69 papers.
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Who cites it
69 citing papers in PubMed, 136 citations in OpenAlex.
- SERRATE Regulates Floral Meristem Activity by Antagonizing SHOOT MERISTEMLESS and Repressing Cytokinin Signaling.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026Article
- Confocal imaging of the cell cycle and cytokinin signaling during gynoecium development in Arabidopsis.The Plant journal : for cell and molecular biology · 2025Article
- Developmental innovation of inferior ovaries and flower sex orchestrated by KNOX1 in cucurbits.Nature plants · 2025Article
- Genome wide identification of Dof transcription factors in Carmine radish reveals RsDof33 role in cadmium stress and anthocyanin biosynthesis.Scientific reports · 2025Article
- Identification and expression analysis of TALE superfamily genes explore their key roles in response to abiotic stress in Brassica napus.BMC plant biology · 2024Article
- GHCU, a Molecular Chaperone, Regulates Leaf Curling by Modulating the Distribution of KNGH1 in Cotton.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2024Article
- AGAMOUS-LIKE24 controls pistil number in Japanese apricot by targeting the KNOTTED1-LIKE gene KNAT2/6-a.Plant physiology · 2024Article
- Transcriptomic analyses to summarize gene expression patterns that occur during leaf initiation of Chinese cabbage.Horticulture research · 2024Article
- Genome-wide identification, characterization, and evolutionary analysis of the barley TALE gene family and its expression profiles in response to exogenous hormones.Frontiers in plant science · 2024Article
- AtHSPR functions in gibberellin-mediated primary root growth by interacting with KNAT5 and OFP1 in Arabidopsis.Plant cell reports · 2023Article
- Ectopic Expression ofGenes · 2023Article
- BREVIPEDICELLUS Positively Regulates Salt-Stress Tolerance inInternational journal of molecular sciences · 2023Article
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- Genome-wide analysis of TALE superfamily in Triticum aestivum reveals TaKNOX11-A is involved in abiotic stress response.BMC genomics · 2022Article
- Genome-wide identification of the KNOTTED HOMEOBOX gene family and their involvement in stalk development in flowering Chinese cabbage.Frontiers in plant science · 2022Article
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- Genome-Wide Analysis of the Homeobox Gene Family and Identification of Drought-Responsive Members inPlants (Basel, Switzerland) · 2021Article
- Genome-Wide Identification and Characterization of TALE Superfamily Genes in Soybean (International journal of molecular sciences · 2021Article
- Evolutionary Relationships and Divergence of KNOTTED1-Like Family Genes Involved in Salt Tolerance and Development in Cotton (Frontiers in plant science · 2021Article
9 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
7 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The KNAT2 (for KNOTTED-like from Arabidopsis thaliana 2) homeobox gene is expressed in the vegetative apical meristem. It is also active during flower development, suggesting a function in the structuring of flowers. To investigate its role, we used a DEXAMETHASONE (DEX)-inducible system to generate transgenic plants that overexpressed a fusion of KNAT2 with the hormone binding domain of the glucocorticoid receptor. DEX-induced plants were similar to plants overexpressing the closely related KNAT1 gene, indicating overlapping functions, although we observed differences as well. In particular, KNAT2-GR activation induced ectopic carpel features. First, KNAT2 induced the homeotic conversion of nucellus into carpel-like structures. Second, KNAT2 induced stigmatic papillae on rosette leaves in the ap2-5 background. Third, ectopic expression of the carpel identity gene AGAMOUS (AG) was observed in carpels and ovules. Interestingly, the homeotic conversion was not dependent on AG activity, because it was maintained in the ag-1 ap2-5 double mutant. Therefore, our data indicate that KNAT2 also must activate other carpel regulators. Together, these results suggest that KNAT2 plays a role in carpel development.
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