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Article Dans Une Revue Nature Plants Année : 2023

Stomatal regulators are co-opted for seta development in the astomatous liverwort Marchantia polymorpha

Kenta Moriya
Makoto Shirakawa
  • Fonction : Auteur
Jeanne Loue-Manifel
  • Fonction : Auteur
Yoriko Matsuda
  • Fonction : Auteur
Yen-Ting Lu
Kentaro Tamura
  • Fonction : Auteur
Yoshito Oka
Tomonao Matsushita
Ikuko Hara-Nishimura
  • Fonction : Auteur
Gwyneth Ingram
Ryuichi Nishihama
Justin Goodrich
  • Fonction : Auteur
Takayuki Kohchi
Tomoo Shimada

Résumé

The evolution of special types of cells requires the acquisition of new gene regulatory networks controlled by transcription factors (TFs). In stomatous plants, a TF module formed by subfamilies Ia and IIIb basic helix-loop-helix TFs (Ia-IIIb bHLH) regulates stomatal formation; however, how this module evolved during land plant diversification remains unclear. Here we show that, in the astomatous liverwort Marchantia polymorpha, a Ia-IIIb bHLH module regulates the development of a unique sporophyte tissue, the seta, which is found in mosses and liverworts. The sole Ia bHLH gene, MpSETA, and a IIIb bHLH gene, MpICE2, regulate the cell division and/or differentiation of seta lineage cells. MpSETA can partially replace the stomatal function of Ia bHLH TFs in Arabidopsis thaliana, suggesting that a common regulatory mechanism underlies setal and stomatal formation. Our findings reveal the co-option of a Ia-IIIb bHLH TF module for regulating cell fate determination and/or cell division of distinct types of cells during land plant evolution. In land plants, the Ia and IIIb basic helix-loop-helix (Ia-IIIb bHLH) module regulates stomatal development. This study shows that a Ia-IIIb bHLH heterodimer, MpSETA-MpICE2, regulates seta formation in Marchantia and suggests a common mechanism underlying stomata and setae formation.

Dates et versions

hal-03948138 , version 1 (20-01-2023)

Identifiants

Citer

Kenta Moriya, Makoto Shirakawa, Jeanne Loue-Manifel, Yoriko Matsuda, Yen-Ting Lu, et al.. Stomatal regulators are co-opted for seta development in the astomatous liverwort Marchantia polymorpha. Nature Plants, 2023, ⟨10.1038/s41477-022-01325-5⟩. ⟨hal-03948138⟩
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