T. Kohchi

An ancient role for the CYP73 gene family in t-cinnamic acid 4-hydroxylation, phenylpropanoid biosynthesis and embryophyte development

This study identifies the CYP73 gene family's ancient role in t-cinnamic acid 4-hydroxylation and embryophyte development through functional analysis in bryophytes.

Evolutionarily Conserved CKI1-Mediated Two-Component Signaling is Required for Female Germline Specification in Marchantia polymorpha

This study identifies MpCKI1 as a conserved two-component signaling component required for female germline specification in Marchantia polymorpha.

Thermospermine is an evolutionarily ancestral phytohormone required for organ development and stress responses in the basal land plant Marchantia polymorpha

This study identifies thermospermine as a key phytohormone in liverworts, showing its role in organ development and stress responses, with implications for evolutionary plant biology.

Harnessing deep learning to analyze cryptic morphological variability of Marchantia polymorpha

This paper uses deep learning to classify sex in Marchantia polymorpha gemmalings, revealing that morphological differences are due to autosomal variation rather than sexual dimorphism.

Biosynthesis of gibberellin-related compounds modulates far-red light responses in the liverwort Marchantia polymorpha

This study shows that GA-related compounds in liverworts modulate far-red light responses, revealing evolutionary conservation and functional divergence in GA biosynthesis.

Overexpression of NIMA-related kinase suppresses cell proliferation and tip growth in a liverwort Marchantia polymorpha

This study shows that overexpressing MpNEK1 in liverwort inhibits cell proliferation and growth, leading to lethality, suggesting a conserved role for NEKs in cell division across species.

Three-dimensional morphological analysis revealed the cell patterning bases for the sexual dimorphism development in the liverwort Marchantia polymorpha

The paper uses 3D morphological analysis to show how germline precursor distribution differs between male and female liverworts, driven by MpFGMYB, shaping sexual dimorphism in M. polymorpha.

Genetic and phosphoproteomic basis of LysM-mediated immune signaling in Marchantia polymorpha highlights conserved elements and new aspect of pattern-triggered immunity in land plants

This study identifies LysM receptor components and phosphoproteomic regulators of PTI in M. polymorpha, revealing conserved and novel elements of plant immune signaling.

A RAF-like kinase mediates a deeply conserved, ultra-rapid auxin response

The paper identifies a conserved RAF-like kinase mediating ultra-rapid auxin responses across land plants and algae, linking it to phosphorylation and fast physiological responses.

Nuclear auxin signaling is essential for organogenesis but not for cell survival in the liverwort Marchantia polymorpha

MarpolBase Expression: A Web-based, Comprehensive Platform for Visualization and Analysis of Transcriptomes in the Liverwort Marchantia polymorpha

The paper introduces MBEX, a web-based platform for analyzing and visualizing transcriptomes in Marchantia polymorpha, demonstrating its utility through oil body biogenesis analysis.

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

The paper shows that a Ia-IIIb bHLH TF module regulates seta development in liverwort Marchantia polymorpha, similar to its role in stomatal formation in stomatous plants.

Coordination between growth and stress responses by DELLA in the liverwort Marchantia polymorpha

This study shows that DELLA in the liverwort Marchantia polymorpha coordinates growth and stress responses, similar to vascular plants, and interacts with MpPIF to promote oxidative stress tolerance.

Switching secretory pathway direction for organelle acquisition in plants

The paper identifies a mechanism in liverworts for acquiring oil bodies through switching secretory pathway direction during cellular phase transitions.

Design principles of a minimal auxin response system

The paper identifies a minimal auxin response system in Marchantia polymorpha, showing that a single A-ARF activates gene expression while a B-ARF represses it, defining developmental zones of auxin response.

Lateral organ diversification in plants mediated by the ALOG protein family of transcription factors

The paper identifies MpTAW1, an ALOG family protein in Marchantia polymorpha, as a regulator of lateral organ development and meristem maintenance, showing its conserved function in specifying lateral organ identity across plant lineages.

An evolutionarily conserved mechanism for production of secondary meristems in land plants

The paper identifies GCAM1 as an essential regulator of gemma cup development in Marchantia polymorpha, suggesting an ancient conserved mechanism for secondary meristem production in land plants.

The RopGEF KARAPPO is Essential for the Initiation of Vegetative Reproduction in Marchantia

This study identifies KARAPPO, a RopGEF, as essential for initiating vegetative reproduction in Marchantia by promoting gemma initial formation through Rop signaling.

Loss of CG methylation in Marchantia polymorpha causes disorganization of cell division and reveals unique DNA methylation regulatory mechanisms of non-CG methylation.

This study shows that loss of CG methylation in Marchantia polymorpha disrupts cell division and reveals unique non-CG methylation regulatory mechanisms in basal land plants.

Efficient CRISPR/Cas9-based genome editing and its application to conditional genetic analysis in Marchantia polymorpha

This study develops efficient CRISPR/Cas9 vectors for genome editing in Marchantia polymorpha, achieving over 70% editing efficiency and enabling conditional genetic analysis.