The minimal cell-cycle control system in Marchantia as a framework for understanding plant cell proliferation
Authors: Romani, F., Bonter, I., Rebmann, M., Takahashi, G., Guzman-Chavez, F., De Batte, F., Hirakawa, Y., Haseloff, J.
Date: 2025-03-13 · Version: 1
DOI: 10.1101/2025.03.12.642684 Category: Plant Biology
Model Organism: Marchantia polymorpha
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Phylogenetic analysis reveals that non‑seed plants, exemplified by the liverwort Marchantia polymorpha, possess a streamlined repertoire of cyclin and CDK genes, with only three cyclins active in a phase‑specific manner during vegetative development. Single‑cell RNA‑seq and fluorescent reporter assays, combined with functional overexpression studies, demonstrate the distinct, non‑redundant roles of MpCYCD;1, MpCYCA, and MpCYCB;1 in G1 entry, S‑phase progression, and G2/M transition, respectively.
Cyclin-CDK regulation Marchantia polymorpha single-cell RNA sequencing phylogenetic analysis fluorescent reporter imaging