Jasmonate-Related MYC Transcription Factors Are Functionally Conserved in Marchantia polymorpha.

Détails

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Etat: Public
Version: de l'auteur
Licence: Non spécifiée
ID Serval
serval:BIB_4D633078DDDE
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Institution
Titre
Jasmonate-Related MYC Transcription Factors Are Functionally Conserved in Marchantia polymorpha.
Périodique
The Plant cell
Auteur(s)
Peñuelas M., Monte I., Schweizer F., Vallat A., Reymond P., García-Casado G., Franco-Zorrilla J.M., Solano R.
ISSN
1532-298X (Electronic)
ISSN-L
1040-4651
Statut éditorial
Publié
Date de publication
10/2019
Peer-reviewed
Oui
Volume
31
Numéro
10
Pages
2491-2509
Langue
anglais
Notes
Publication types: Journal Article ; Research Support, Non-U.S. Gov't
Publication Status: ppublish
Résumé
The lipid-derived phytohormone jasmonoyl-isoleucine regulates plant immunity, growth and development in vascular plants by activating genome-wide transcriptional reprogramming. In Arabidopsis (Arabidopsis thaliana), this process is largely orchestrated by the master regulator MYC2 and related transcription factors (TFs). However, the TFs activating this pathway in basal plant lineages are currently unknown. We report the functional conservation of MYC-related TFs between the eudicot Arabidopsis and the liverwort Marchantia polymorpha, a plant belonging to an early diverging lineage of land plants. Phylogenetic analysis suggests that MYC function first appeared in charophycean algae and therefore predates the evolutionary appearance of any other jasmonate pathway component. M. polymorpha possesses two functionally interchangeable MYC genes, one in females and one in males. Similar to AtMYC2, MpMYCs showed nuclear localization, interaction with JASMONATE-ZIM-DOMAIN PROTEIN repressors, and regulation by light. Phenotypic and molecular characterization of loss- and gain-of-function mutants demonstrated that MpMYCs are necessary and sufficient for activating the jasmonate pathway in M. polymorpha, but unlike their Arabidopsis orthologs, do not regulate fertility. Therefore, despite 450 million years of independent evolution, MYCs are functionally conserved between bryophytes and eudicots. Genetic conservation in an early diverging lineage suggests that MYC function existed in the common ancestor of land plants and evolved from a preexisting MYC function in charophycean algae.
Mots-clé
Animals, Arabidopsis/drug effects, Arabidopsis/genetics, Arabidopsis/metabolism, Arabidopsis Proteins/genetics, Arabidopsis Proteins/metabolism, Basic Helix-Loop-Helix Leucine Zipper Transcription Factors/genetics, Basic Helix-Loop-Helix Leucine Zipper Transcription Factors/metabolism, Charophyceae/genetics, Cyclopentanes/metabolism, Embryophyta/genetics, Evolution, Molecular, Fatty Acids, Unsaturated/chemistry, Fatty Acids, Unsaturated/pharmacology, Fertility/genetics, Gene Expression Regulation, Plant, Herbivory/physiology, Isoleucine/analogs & derivatives, Isoleucine/metabolism, Light, Marchantia/drug effects, Marchantia/genetics, Marchantia/metabolism, Mutation, Phylogeny, Plant Growth Regulators/metabolism, Plant Proteins/genetics, Plant Proteins/metabolism, Plants, Genetically Modified, Protein Binding, Protein Domains/genetics, Repressor Proteins/metabolism
Pubmed
Web of science
Création de la notice
16/08/2019 21:07
Dernière modification de la notice
07/07/2020 5:20
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