Camille Puginier

EPP1 is an ancestral component of the plant Common Symbiosis Pathway The success of plants on land has been enabled by mutualistic intracellular associations with microbes for 450 million years ([Delaux and Schornack 2021][1]). Because of their intracellular nature, th...

So happy to see the latest preprint of the team out! www.biorxiv.org/content/10.1...
The continuation of a long standing project started by @oswaldovaldesl.bsky.social in @jeanmichelane.bsky.social‘s lab. 1/7 🧵

~12 years after we coined it EPP1 with @oswaldovaldesl.bsky.social one afternoon when we were postdoc with @jeanmichelane.bsky.social!

Congrats @melaniekrich.bsky.social @tatiana-vernie.bsky.social et al. for the hard work!

EPP1 is the fourth member of the Common Symbiosis Pathway 🍄🌱!

🤯

Bryophytes hold a larger gene family space than vascular plants - Nature Genetics A super-pangenome analysis incorporating 123 newly sequenced bryophyte genomes reveals that bryophytes exhibit a larger number of unique and lineage-specific gene families than vascular plants.

A milestone for plant genomics just out @natgenet.nature.com

130 bryophyte genomes!

www.nature.com/articles/s41...

Reviving my football career ⚽
Very happy to represent TSL and the Nobori group at the Norwich Research Park football event.
We even managed to bring home the wooden spoon 🥄😉

Thirteen scientists, making up two teams, represented The Sainsbury Lab at the football tournament. They pose, smiling, on the field for a final picture.

Last Friday TSL participated in a football tournament with @johninnescentre.bsky.social @quadraminstitute.bsky.social @earlhaminst.bsky.social and @uniofeastanglia.bsky.social

Everyone had fun and TSL even earned the wooden spoon! 🥄

Huge thanks to the organisers! ⚽
📷 @dianagdlc.bsky.social

Thank you mister Vangeli 😈

Mechanisms, Detection, and Impact of Horizontal Gene Transfer in Plant Functional Evolution Abstract. Horizontal gene transfers (HGT) have been observed across the tree of life. While their adaptive importance in bacteria is conspicuous, the occur

Thanks for reading!!
DOI: doi.org/10.1093/plce...
15/15

In lichen algal symbionts, HGTs conferred tolerance against desiccation and oxidative stress. Another example of HGT in algal symbionts is the acquisition of an enzyme belonging to the glycoside hydrolase 8 (GH8) family which might be involved in symbionts accomodation
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Finally, HGTs have been key to the evolution of plant-microbe mutualisms. In rhizobia and mycorrhizal fungi, HGT provided symbiosis-related genes that enabled nitrogen fixation, immune modulation, and host adaptation.
13/15

HGTs have enhanced plant immunity by introducing novel toxins, enzymes, and defense genes from microbes and other organisms. Examples include bacterial toxins in cycads and ferns, fungal-derived terpene synthases in liverworts, and fungal resistance genes in wheat.
12/15

4. We then detail how these HGTs played a role in plant adaptation and functional evolution. HGT supported major transitions during plant evolution, like terrestrialization (the long-lasting water-to-land transition) or the evolution of the vascular system.
11/15

- Validation: ensuring sequences are truly integrated into the host genome (through flanking host DNA, raw read support, or PCR) to rule out contamination.
10/15

- Phylogenetic evidence: incongruence between gene and species trees, or patchy gene distributions across taxa.
9/15

- Sequence-based clues: unusually high sequence similarity between distant species, conserved introns, codon usage mismatches, and non-syntenic gene positions.
8/15

3. Detecting horizontal gene transfer (HGT) relies on identifying unusual genomic signatures and validating them carefully to avoid false positives from contamination. Key approaches include:
7/15

Transposable elements and extrachromosomal circular DNA often aid transfer and integration. For long-term impact, the foreign DNA must enter germ cells or be passed through vegetative reproduction.
6/15

2. We then detail mechanisms mediating HGTs. HGT in plants happens when DNA/RNA escapes donor cells, reaches recipient cells (via parasitism, grafting, illegitimate pollination, or vectors), and integrates into the genome.
5/15

notable cases, whiteflies show rare plant-to-animal transfers, and viral sequences (e.g., Caulimoviridae) are commonly integrated into plant genomes.
4/15

1. We first detail how Horizontal gene transfer (HGT) is widespread in plants, occurring not only between plants—especially parasitic plants and their hosts—but also with bacteria, fungi, insects, and viruses. Bacteria are the most frequent donors,fungi contribute fewer but
3/15

Congrats to all authors Lee Mariault, Moaine El Baidouri, @kellerjeanphd.bsky.social and @pierremarcdelaux.bsky.social !

Mechanisms, Detection, and Impact of Horizontal Gene Transfer in Plant Functional Evolution Abstract. Horizontal gene transfers (HGT) have been observed across the tree of life. While their adaptive importance in bacteria is conspicuous, the occur

So excited to see our review on how to detect horizontal gene transfers and their impact on plant functional evolution finally published in @theplantcell.bsky.social!
Great teamwork between @lrsv-toulouse.bsky.social and LGDP-Perpignan 😎🥳🌱
academic.oup.com/plcell/advan...

Our lab day out at Mundesley beach- the victorious blue team, limbo competition, dodge ball, tug of war and Magnaporthe themed sandcastles!

Nissolia brasiliensis as a non-nodulating model legume The nitrogen-fixing root nodule symbiosis (RNS) is specifically formed by four orders of angiosperms. The largest of these four orders include the legume family, the Fabaceae. Among legumes, historica...

Latest #preprint from the lab @biorxivpreprint.bsky.social

Please welcome Nissolia brasiliensis, the new non-nodulating model legume ☘️ developped by Camille Girou in the team!

Work led by Tatiana, with input from many!

www.biorxiv.org/content/10.1...

🤯🤯

Jacob Suissa and I wrote a #book about #ferns! It's beautifully illustrated by the amazing artist Laura Silburn. Will be released in May and you can preorder from Amazon. We hope this book could help you forget all the bad things happening on Earth right now. More here: mailchi.mp/btiscience/f...

Here is our latest study @newphyt.bsky.social , led by @fabianvanbeveren.bsky.social and Yvet Boele! Our first dive into ectomycorrhizae!

nph.onlinelibrary.wiley.com/doi/10.1111/...

Do you want to learn about the convergent evolution of ECM? Have a look at the thread prepared by Fabian🔽

Very cool study on convergent evolution of ectomycorrhizal symbiosis in plants, and a very cool thread by the first coauthor @fabianvanbeveren.bsky.social

@lrsv-toulouse.bsky.social

⬇️

Ectomycorrhizal symbiosis evolved independently and by convergent gene duplication in rosid lineages Click on the article title to read more.

Excited to share our recent work on the evolution of ectomycorrhizal plants! 🌳 🧬 🖥️
doi.org/10.1111/nph.70054

With: Yvet Boele, @puginiercamille.bsky.social, @mbianc.bsky.social, Cyril Libourel, @maximebonhomme.bsky.social, @kellerjeanphd.bsky.social, @pierremarcdelaux.bsky.social

A thread: (1/5)

Sooooo glad to finally see this out (after hearing about it almost every day for the last four years in the office 🥲)
Congrats to all involved! Huge achievement 🥳
Check Chloe’s thread about the main findings ⬇️⬇️⬇️⬇️