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Article

The Relationship between AGAMOUS and Cytokinin Signaling in the Establishment of Carpeloid Features

1
Unidad de Genómica Avanzada (UGA-Langebio), Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV-IPN), Irapuato CP 36824, Guanajuato, Mexico
2
Department of Biological Sciences, Plant Biology Research Institute, University of Montreal, Montreal, QC H1X 2B2, Canada
*
Author to whom correspondence should be addressed.
Present address: Plant Biology Research Institute, Department of Biological Sciences, University of Montreal, Montreal, QC H1X 2B2, Canada.
Academic Editors: Giovanna Frugis and Concha (Concepción) Gómez-Mena
Plants 2021, 10(5), 827; https://doi.org/10.3390/plants10050827
Received: 23 February 2021 / Revised: 9 April 2021 / Accepted: 15 April 2021 / Published: 21 April 2021
(This article belongs to the Special Issue Plant Reproductive Development)
Gynoecium development is dependent on gene regulation and hormonal pathway interactions. The phytohormones auxin and cytokinin are involved in many developmental programs, where cytokinin is normally important for cell division and meristem activity, while auxin induces cell differentiation and organ initiation in the shoot. The MADS-box transcription factor AGAMOUS (AG) is important for the development of the reproductive structures of the flower. Here, we focus on the relationship between AG and cytokinin in Arabidopsis thaliana, and use the weak ag-12 and the strong ag-1 allele. We found that cytokinin induces carpeloid features in an AG-dependent manner and the expression of the transcription factors CRC, SHP2, and SPT that are involved in carpel development. AG is important for gynoecium development, and contributes to regulating, or else directly regulates CRC, SHP2, and SPT. All four genes respond to either reduced or induced cytokinin signaling and have the potential to be regulated by cytokinin via the type-B ARR proteins. We generated a model of a gene regulatory network, where cytokinin signaling is mainly upstream and in parallel with AG activity. View Full-Text
Keywords: AGAMOUS; cytokinin signaling; carpel; gynoecium; transcription factors; CRC; SPT; SHP2; type-B ARR AGAMOUS; cytokinin signaling; carpel; gynoecium; transcription factors; CRC; SPT; SHP2; type-B ARR
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MDPI and ACS Style

Gómez-Felipe, A.; Kierzkowski, D.; de Folter, S. The Relationship between AGAMOUS and Cytokinin Signaling in the Establishment of Carpeloid Features. Plants 2021, 10, 827. https://doi.org/10.3390/plants10050827

AMA Style

Gómez-Felipe A, Kierzkowski D, de Folter S. The Relationship between AGAMOUS and Cytokinin Signaling in the Establishment of Carpeloid Features. Plants. 2021; 10(5):827. https://doi.org/10.3390/plants10050827

Chicago/Turabian Style

Gómez-Felipe, Andrea, Daniel Kierzkowski, and Stefan de Folter. 2021. "The Relationship between AGAMOUS and Cytokinin Signaling in the Establishment of Carpeloid Features" Plants 10, no. 5: 827. https://doi.org/10.3390/plants10050827

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