Transcriptional reprogramming during floral fate acquisition

Larrieu, Antoine; Brunoud, Géraldine; Guérault, Aurore; Lainé, Stéphanie; Hennet, Lauriane; Stigliani, Arnaud; Gildea, Iris; Just, Jérémy; Soubigou‐Taconnat, Ludivine; Balzergue, Sandrine; Davies, Brendan; Scarpella, Enrico; Helariutta, Ykä; Parcy, François; Vernoux, Teva

doi:10.1016/j.isci.2022.104683

Cited by 4 publications

(3 citation statements)

References 58 publications

(84 reference statements)

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“…It is therefore tempting to speculate that the ERF transcription factor provides target gene specificity, whereas the GRAS interaction partner controls the regulation of its transcription by recruiting histonemodifying enzymes. However, indirect control of expression by ERF115 cannot be excluded, since DOF3.4 has been recently described as an auxin-induced gene being under putative transcriptional control of MP/ARF5 (Larrieu et al, 2022). At the other hand, MP/ARF5 was reported to be a bona fide direct ERF115 target gene (Canher et al, 2020), in that way still placing DOF3.4 downstream of the wound-induced ERF115-dependent transcriptional pathway.…”

Section: Erf-gras Heterodimerization Driving Cell Divisions Via Dof34mentioning

confidence: 99%

PAT1-type GRAS-domain proteins control regeneration by activating DOF3.4 to drive cell proliferation in Arabidopsis roots

et al. 2023

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Plant roots possess remarkable regenerative potential owing to their ability to replenish damaged or lost stem cells. ETHYLENE RESPONSE FACTOR 115 (ERF115), one of the key molecular elements linked to this potential, plays a predominant role in the activation of regenerative cell divisions. However, the downstream operating molecular machinery driving wound-activated cell division is largely unknown. Here, we biochemically and genetically identified the GRAS-domain transcription factor SCARECROW-LIKE 5 (SCL5) as an interaction partner of ERF115 in Arabidopsis thaliana. Although non-essential under control growth conditions, SCL5 acts redundantly with the related PHYTOCHROME A SIGNAL TRANSDUCTION 1 (PAT1) and SCL21 transcription factors to activate the expression of the DNA-BINDING ONE FINGER 3.4 (DOF3.4) transcription factor gene. DOF3.4 expression is wound-inducible in an ERF115-dependent manner, and in turn activates D3-type cyclin expression. Accordingly, ectopic DOF3.4 expression drives periclinal cell division, while its downstream D3-type cyclins are essential for the regeneration of a damaged root. Our data highlight the importance and redundant roles of the SCL5, SCL21 and PAT1 transcription factors in wound-activated regeneration processes and pinpoint DOF3.4 as a key downstream element driving regenerative cell division.

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Section: Erf-gras Heterodimerization Driving Cell Divisions Via Dof34mentioning

confidence: 99%

PAT1-type GRAS-domain proteins control regeneration by activating DOF3.4 to drive cell proliferation in Arabidopsis roots

et al. 2023

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“…AtDOF5.8 and AtDOF3.4 (OBP1), both from Group 6, have been shown to be controlled by the auxin-orchestrator gene MONOPTEROS (MP) to regulate provascular cell divisions and cell expansion in root, shoot, and cotyledons ( Skirycz et al , 2008 ; Konishi and Yanagisawa, 2015 ). These genes have been recently reported to be expressed in primordia initiation and potentially link growth with floral fate acquisition ( Larrieu et al, 2022 ). Interestingly, AtDOF1.6 has had no functional study, nor has it been reported to act in these same pathways, even though it is present in this same group.…”

Section: Homologous Groups and Biological Rolesmentioning

confidence: 99%

DOF gene family expansion and diversification

Waschburger,

Filgueiras,

Turchetto-Zolet

2023

Genet. Mol. Biol.

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DOF (DNA binding with one finger) proteins are part of a plant-specific transcription factor (TF) gene family widely involved in plant development and stress responses. Many studies have uncovered their structural and functional characteristics in recent years, leading to a rising number of genome-wide identification study approaches, unveiling the DOF family expansion in angiosperm species. Nonetheless, these studies primarily concentrate on particular taxonomic groups. Identifying DOF TFs within less-represented groups is equally crucial, as it enhances our comprehension of their evolutionary history, contributions to plant phenotypic diversity, and role in adaptation. This review summarizes the main findings and progress of genome-wide identification and characterization studies of DOF TFs in Viridiplantae, exposing their roles as players in plant adaptation and a glimpse of their evolutionary history. We also present updated data on the identification and number of DOF genes in native and wild species. Altogether, these data, comprising a phylogenetic analysis of 2124 DOF homologs spanning 83 different species, will contribute to identifying new functional DOF groups, adding to our understanding of the mechanisms driving plant evolution and offering valuable insights into their potential applications.

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“…ARF5 is described to act as an essential integrator of the auxin signaling pathway by activating or transcriptionally controlling genes that act in the transport pathway of this phytohormone (Zhao et al, 2010). Interestingly, RNAseq data from pid1 and mp arabidopsis mutants indicates that SCI1 is somehow transcriptionally misregulated in these mutants despite not showing statistical significance (Larrieu et al, 2022). pid1 and mp mutants fail to start organs in the reproductive phase (Zhao et al, 2010), and this is due to reduced polar auxin transport (Konishi et al, 2015;Okadalat et al, 1991).…”

Section: Sci1 and The Auxin Signaling Pathwaymentioning

confidence: 99%

SCI1 expression and its transcriptional regulation in the floral meristem and flowers of Nicotiana tabacum

Cruz

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Transcriptional reprogramming during floral fate acquisition

Cited by 4 publications

References 58 publications

PAT1-type GRAS-domain proteins control regeneration by activating DOF3.4 to drive cell proliferation in Arabidopsis roots

PAT1-type GRAS-domain proteins control regeneration by activating DOF3.4 to drive cell proliferation in Arabidopsis roots

DOF gene family expansion and diversification

SCI1 expression and its transcriptional regulation in the floral meristem and flowers of Nicotiana tabacum

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