jameswalker303.bsky.social
@jameswalker303.bsky.social
Pinned
I'm thrilled to share that our study is now published in Cell:
Extensive N4 cytosine methylation is essential for Marchantia sperm function.
www.cell.com/cell/fulltex...
This paper confirms our 4mC discovery in Marchantia sperm and takes it much further.
A thread: 0/13
Extensive N4 cytosine methylation is essential for Marchantia sperm function
Global N4 cytosine methylation in Marchantia polymorpha sperm regulates gene expression and promotes sperm fertility.
www.cell.com
Excellent stuff @p-bourguet.bsky.social !
How is epigenetic information inherited? We found that CDCA7 proteins are critical players in the inheritance of DNA methylation at CG sites in plants, and this is true both in the lab and in the wild. How does this work? 🧵👇
New paper! Work led by @p-bourguet.bsky.social and Frédéric Berger at the GMI of the @oeaw.bsky.social and @esasaki007.bsky.social identified how protein CDCA7 helps plants stably maintain epigenetic modifications across generations.

Read more: www.oeaw.ac.at/gmi/detail/n...
November 8, 2025 at 8:57 PM
Reposted
Excited to see our story on epigenetic mediated aclimation of plants to fluctuating light patterns out today in doi.org/10.1111/nph..... This work started 6 years ago co-supervised with the amazing @proftlawson.bsky.social and led by the brilliant @robynemm.bsky.social. 1/2
September 20, 2025 at 12:04 PM
Reposted
Happy to share the results of a long-haul post-doc project, now online @science.org, aiming at understanding the rules of transgeneration epigenetic inheritance over TEs in plants and its extent and impact in nature. More below!
doi.org/10.1126/scie...
Transposable elements are vectors of recurrent transgenerational epigenetic inheritance
DNA methylation loss at transposable elements (TEs) can affect neighboring genes and be epigenetically inherited in plants, yet the determinants and significance of this additional system of inheritan...
doi.org
September 18, 2025 at 6:35 PM
Reposted
@tinaschreier.bsky.social has been awarded an @erc.europa.eu Starting Grant for research into the cell biology of C4 photosynthesis 🌱

Tina’s project will explore the cell biology that leads to the formation of specialised bundle sheath cells in C4 plants 👇
bit.ly/4mWFGhh
Dr Tina Schreier awarded ERC Starting Grant
bit.ly
September 4, 2025 at 11:00 AM
Reposted
We are pleased to share that P4S Research Fellow @jamespblloyd.bsky.social from the University of Western Australia was recently awarded a Grains Research and Development Corporation Mid-Career Research Fellowship 🌟

Read more 👉 www.linkedin.com/feed/update/...
July 29, 2025 at 1:42 AM
Reposted
#PlantBio2025
I’ll be speaking in the final plenary—sharing the story behind this paper and some new, unpublished work from my lab at TSL. Hope people stick around till the end (though a few already warned me they’re leaving early 😅)!
New year, new paper! Now published in @nature.com. We identified and characterised diverse immune cell states in plants under pathogen attack. My postdoc work in the Ecker lab at @salkinstitute.bsky.social. A thread (0/n)
#PlantScience
www.nature.com/articles/s41...
July 26, 2025 at 5:09 PM
Reposted
New Pre-print! A long-standing question for transcription factor biology is how their chromatin context dependency works in plants. In this collaboration with Fred Berger lab, we present some new ideas not only in Arabidopsis but also in Marchantia. www.biorxiv.org/content/10.1...
Conservation of chromatin states and their association with transcription factors in land plants
The complexity of varied modifications of chromatin composition is integrated in archetypal combinations called chromatin states that predict the local potential for transcription. The degree of conse...
www.biorxiv.org
July 21, 2025 at 5:16 PM
Reposted
Very happy to share our protocols paper for CELLO-seq. This will make single cell long read RNA-seq more accessible and provides analysis guidelines. We hope this helps the #transposon #TEsky community and folks working on #singleCell isoform and allelic #gene expression. doi.org/10.1038/s415...
Long-read RNA sequencing of transposable elements from single cells using CELLO-seq - Nature Protocols
Single-cell long-read RNA sequencing enables the high-fidelity mapping of single-cell expression data from highly sequence-similar transposable elements to unique genomic loci by correcting errors fro...
doi.org
July 16, 2025 at 4:55 PM
Reposted
I have a Postdoctoral Research Fellow position starting in January to study the evolution of seed gene networks using the fern Ceratopteris! Interested? More info here:
www.jobs.ac.uk/job/DNU179/r...

Closing date 31st July. 🙂
#PlantScience
#PlantSciencejobs
Research Fellow (Postdoctoral) at University of Birmingham
An opportunity for an academic position as a Research Fellow (Postdoctoral) is available, as advertised on jobs.ac.uk. Apply now and explore other academic job openings.
www.jobs.ac.uk
July 10, 2025 at 5:08 PM
Reposted
I’m sharing my very personal story to encourage everyone to participate in and celebrate Pride month. All our voices are needed to protect diversity and support the queer community. #PRIDEmonth 🌈.
rootandshoot.org/forever-prid...
June 7, 2025 at 5:34 PM
Reposted
Grateful to share that our study on "The genetic architecture of cell type–specific cis regulation in maize" is now published in @science.org! Huge thank you to all co-authors and the 4 tough, but fair, reviewers who all helped to improve the study 🌽🧬 www.science.org/doi/10.1126/...
The genetic architecture of cell type–specific cis regulation in maize
Gene expression and complex phenotypes are determined by the activity of cis-regulatory elements. However, an understanding of how extant genetic variants affect cis regulation remains limited. Here, ...
www.science.org
April 17, 2025 at 7:00 PM
I'm thrilled to share that our study is now published in Cell:
Extensive N4 cytosine methylation is essential for Marchantia sperm function.
www.cell.com/cell/fulltex...
This paper confirms our 4mC discovery in Marchantia sperm and takes it much further.
A thread: 0/13
Extensive N4 cytosine methylation is essential for Marchantia sperm function
Global N4 cytosine methylation in Marchantia polymorpha sperm regulates gene expression and promotes sperm fertility.
www.cell.com
April 9, 2025 at 5:15 PM
Reposted
Wonderful talk from @delfidorussen.bsky.social at #Monogram2025 about DNA methylation mutants in wheat. You can read the full MET1-1 mutant characterisation which was just published this week @jxbotany.bsky.social ⬇️
April 9, 2025 at 11:12 AM
Reposted
I’m very happy to share the published version of our paper on the role of MET1 in wheat 🌾 🧬

It’s been really exciting to discover more about DNA methylation in wheat and it’s huge polyploid genome

doi.org/10.1093/jxb/...
Partial redundancy buffers deleterious effects of mutating DNA methyltransferase 1-1 (MET1-1) in polyploid wheat
Varying gene dosage through mutating DNA methyltransferase 1-1 (MET1-1 ) in polyploid wheat generates quantitative changes to CG methylation without the le
doi.org
April 8, 2025 at 7:36 AM
Reposted
It's been a long time coming but I'm very happy to share this preprint with folks. 🙂 Thanks again to the Royal Society for funding this research.
www.biorxiv.org/content/10.1...
#Plantscience
#Plantevolution
#Fernbiology
Gene networks are conserved across reproductive development between the fern Ceratopteris richardii and the flowering plant Arabidopsis thaliana
How plants first invented seeds is a longstanding unresolved evolutionary question. Seed-bearing plants arose from within seedless vascular plants, with ferns as their closest relatives, but how the s...
www.biorxiv.org
March 23, 2025 at 6:39 AM
Reposted
New year, new paper! Now published in @nature.com. We identified and characterised diverse immune cell states in plants under pathogen attack. My postdoc work in the Ecker lab at @salkinstitute.bsky.social. A thread (0/n)
#PlantScience
www.nature.com/articles/s41...
January 8, 2025 at 4:27 PM
Reposted
1/10 We are thrilled to share our preprint on spatial transcriptomics in wheat spikes led by the amazing @katielong.bsky.social and Ashleigh Lister. We resolved expression of 200 genes to cellular resolution. Pre-print👉 tinyurl.com/c7t3kncf., @johninnescentre.bsky.social @earlhaminst.bsky.social
January 7, 2025 at 7:32 AM