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Reposted by Camille Puginier

Mélanie Rich 🌱🍄 @melaniekrich.bsky.social · 2d

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 🧵

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...

www.biorxiv.org

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Reposted by Camille Puginier

PM Delaux @pierremarcdelaux.bsky.social · 2d

~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 🍄🌱!

Mélanie Rich 🌱🍄 @melaniekrich.bsky.social · 2d

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 🧵

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...

www.biorxiv.org

2 18 34

Camille Puginier @puginiercamille.bsky.social · 15d

🤯

PM Delaux @pierremarcdelaux.bsky.social · 16d

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

130 bryophyte genomes!

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

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.

www.nature.com

2

Reposted by Camille Puginier

PM Delaux @pierremarcdelaux.bsky.social · 16d

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

130 bryophyte genomes!

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

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.

www.nature.com

1 38 110

Reposted by Camille Puginier

Vangeli Geshkovski @vgeshkovski.bsky.social · Sep 4

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 🥄😉

The Sainsbury Laboratory @thesainsburylab.bsky.social · Sep 4

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

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

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Reposted by Camille Puginier

The Sainsbury Laboratory @thesainsburylab.bsky.social · Sep 4

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

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Camille Puginier @puginiercamille.bsky.social · Aug 28

Thank you mister Vangeli 😈

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Camille Puginier @puginiercamille.bsky.social · Aug 28

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

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

doi.org

1

Camille Puginier @puginiercamille.bsky.social · Aug 28

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
14/15

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Camille Puginier @puginiercamille.bsky.social · Aug 28

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

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Camille Puginier @puginiercamille.bsky.social · Aug 28

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

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Camille Puginier @puginiercamille.bsky.social · Aug 28

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

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Camille Puginier @puginiercamille.bsky.social · Aug 28

- 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

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Camille Puginier @puginiercamille.bsky.social · Aug 28

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

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Camille Puginier @puginiercamille.bsky.social · Aug 28

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

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Camille Puginier @puginiercamille.bsky.social · Aug 28

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

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Camille Puginier @puginiercamille.bsky.social · Aug 28

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

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Camille Puginier @puginiercamille.bsky.social · Aug 28

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

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Camille Puginier @puginiercamille.bsky.social · Aug 28

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

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Camille Puginier @puginiercamille.bsky.social · Aug 28

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

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Camille Puginier @puginiercamille.bsky.social · Aug 28

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

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Camille Puginier @puginiercamille.bsky.social · Aug 28

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...

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

academic.oup.com

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Reposted by Camille Puginier

Nick Talbot @talbotlabtsl.bsky.social · Aug 21

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

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Reposted by Camille Puginier

PM Delaux @pierremarcdelaux.bsky.social · Jul 9

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...

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...

www.biorxiv.org

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Camille Puginier @puginiercamille.bsky.social · May 9

🤯🤯

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