Jean Keller, PhD
@kellerjeanphd.bsky.social
@CNRS Researcher @lrsv-toulouse & evolutionary biologist working on the evolution of functional traits in Eukaryotes with a main focus on mutualistic interactions.
#Bioinformatician, #photographer, nature lover.
#Bioinformatician, #photographer, nature lover.
Reposted by Jean Keller, PhD
With @kellerjeanphd.bsky.social, @katharinamel1.bsky.social, @tatiana-vernie.bsky.social, @mbianc.bsky.social, and many other people (not in bsky, I think), and collaborators 😁.
November 4, 2025 at 12:44 PM
With @kellerjeanphd.bsky.social, @katharinamel1.bsky.social, @tatiana-vernie.bsky.social, @mbianc.bsky.social, and many other people (not in bsky, I think), and collaborators 😁.
Reposted by Jean Keller, PhD
1/ It is my pleasure to share the latest preprint of the team: "Symbiotic diversification relies on an ancestral gene network in plants"
doi.org/10.1101/2025...
Here, we identified and functionally validated a novel master regulator of intracellular symbioses!
A thread ...
#PlantScience
doi.org/10.1101/2025...
Here, we identified and functionally validated a novel master regulator of intracellular symbioses!
A thread ...
#PlantScience
Symbiotic diversification relies on an ancestral gene network in plants
Symbioses have been fundamental to colonization of terrestrial ecosystems by plants and their evolution. Emergence of the ancient arbuscular mycorrhizal symbiosis was followed by the diversification o...
doi.org
November 4, 2025 at 8:06 AM
1/ It is my pleasure to share the latest preprint of the team: "Symbiotic diversification relies on an ancestral gene network in plants"
doi.org/10.1101/2025...
Here, we identified and functionally validated a novel master regulator of intracellular symbioses!
A thread ...
#PlantScience
doi.org/10.1101/2025...
Here, we identified and functionally validated a novel master regulator of intracellular symbioses!
A thread ...
#PlantScience
Reposted by Jean Keller, PhD
Want to see ferns under attack and how they respond to pathogens? Check out our latest paper!
doi.org/10.1186/s129...
Congrats on this huge team effort to @baptistebio.bsky.social @madeleinebaker.bsky.social @kellerjeanphd.bsky.social @maximebonhomme.bsky.social @pierremarcdelaux.bsky.social
doi.org/10.1186/s129...
Congrats on this huge team effort to @baptistebio.bsky.social @madeleinebaker.bsky.social @kellerjeanphd.bsky.social @maximebonhomme.bsky.social @pierremarcdelaux.bsky.social
October 9, 2025 at 3:40 PM
Want to see ferns under attack and how they respond to pathogens? Check out our latest paper!
doi.org/10.1186/s129...
Congrats on this huge team effort to @baptistebio.bsky.social @madeleinebaker.bsky.social @kellerjeanphd.bsky.social @maximebonhomme.bsky.social @pierremarcdelaux.bsky.social
doi.org/10.1186/s129...
Congrats on this huge team effort to @baptistebio.bsky.social @madeleinebaker.bsky.social @kellerjeanphd.bsky.social @maximebonhomme.bsky.social @pierremarcdelaux.bsky.social
Reposted by Jean Keller, PhD
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 🧵
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
October 6, 2025 at 1:36 PM
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 🧵
The continuation of a long standing project started by @oswaldovaldesl.bsky.social in @jeanmichelane.bsky.social‘s lab. 1/7 🧵
Reposted by Jean Keller, PhD
Des écosystèmes entiers s’effondrent sans bruit. Pourtant, les débats restent centrés sur notre confort, notre économie, notre climatisation. L’humain au centre, comme toujours.
En Méditerranée, des températures de surface de la mer ont atteint 32°C, avec une anomalie thermique de +6,21°C.
[1/5]
En Méditerranée, des températures de surface de la mer ont atteint 32°C, avec une anomalie thermique de +6,21°C.
[1/5]
July 5, 2025 at 10:44 AM
Des écosystèmes entiers s’effondrent sans bruit. Pourtant, les débats restent centrés sur notre confort, notre économie, notre climatisation. L’humain au centre, comme toujours.
En Méditerranée, des températures de surface de la mer ont atteint 32°C, avec une anomalie thermique de +6,21°C.
[1/5]
En Méditerranée, des températures de surface de la mer ont atteint 32°C, avec une anomalie thermique de +6,21°C.
[1/5]
Reposted by Jean Keller, PhD
I’m very happy that my main PhD work, under the supervision of @malick-mbengue.bsky.social, found a home in @pnas.org
Two days before my PhD defence! 🎉 (1/6)
Two days before my PhD defence! 🎉 (1/6)
A plant Lysin Motif Receptor-Like Kinase plays an ancestral function in mycorrhiza | PNAS
Arbuscular mycorrhiza (AM) with soilborne Glomeromycota fungi was pivotal in the conquest
of land by plants almost half a billion years ago. In flo...
www.pnas.org
June 12, 2025 at 8:27 AM
I’m very happy that my main PhD work, under the supervision of @malick-mbengue.bsky.social, found a home in @pnas.org
Two days before my PhD defence! 🎉 (1/6)
Two days before my PhD defence! 🎉 (1/6)
Reposted by Jean Keller, PhD
the results are the following:
Paloma DURAN, Liam ELLIOTT co-first
Marija SMOKVARSKA - 3
Hyun-Kyung LEE - 4
Pierre GAUTRAT - 5
Andrew HELMSTETTER - 6
Alan LE MOAN - 7
Laura ELVIRA GONZALEZ - 8
Liudmila KOZLOVA - 9
Paloma DURAN, Liam ELLIOTT co-first
Marija SMOKVARSKA - 3
Hyun-Kyung LEE - 4
Pierre GAUTRAT - 5
Andrew HELMSTETTER - 6
Alan LE MOAN - 7
Laura ELVIRA GONZALEZ - 8
Liudmila KOZLOVA - 9
March 25, 2025 at 11:14 AM
the results are the following:
Paloma DURAN, Liam ELLIOTT co-first
Marija SMOKVARSKA - 3
Hyun-Kyung LEE - 4
Pierre GAUTRAT - 5
Andrew HELMSTETTER - 6
Alan LE MOAN - 7
Laura ELVIRA GONZALEZ - 8
Liudmila KOZLOVA - 9
Paloma DURAN, Liam ELLIOTT co-first
Marija SMOKVARSKA - 3
Hyun-Kyung LEE - 4
Pierre GAUTRAT - 5
Andrew HELMSTETTER - 6
Alan LE MOAN - 7
Laura ELVIRA GONZALEZ - 8
Liudmila KOZLOVA - 9
Reposted by Jean Keller, PhD
🔗 Preprint alert: www.biorxiv.org/content/10.1...
🧵 New insights into plant immunity: using ferns to understand evolution! 🌱✨🌿
Excited to share my first (but not last) published research at @lrsv-toulouse.bsky.social. A THREAD … [1/9]
🧵 New insights into plant immunity: using ferns to understand evolution! 🌱✨🌿
Excited to share my first (but not last) published research at @lrsv-toulouse.bsky.social. A THREAD … [1/9]
Exploring fern pathosystems and immune receptors to bridge gaps in plant immunity
Land plants include angiosperms, bryophytes, lycophytes and ferns, each of which may deploy distinct strategies to resist pathogens. Here, we investigate fern-pathogen interactions by characterizing n...
www.biorxiv.org
March 20, 2025 at 10:35 AM
🔗 Preprint alert: www.biorxiv.org/content/10.1...
🧵 New insights into plant immunity: using ferns to understand evolution! 🌱✨🌿
Excited to share my first (but not last) published research at @lrsv-toulouse.bsky.social. A THREAD … [1/9]
🧵 New insights into plant immunity: using ferns to understand evolution! 🌱✨🌿
Excited to share my first (but not last) published research at @lrsv-toulouse.bsky.social. A THREAD … [1/9]
Reposted by Jean Keller, PhD
We got a message from the university to remove any use of the "DEI", "diversity", "equity", or "inclusion" from all public-facing documents. They said that even "biodiversity" is being flagged by the federal government. We live in the dumbest timeline.
February 11, 2025 at 8:47 AM
We got a message from the university to remove any use of the "DEI", "diversity", "equity", or "inclusion" from all public-facing documents. They said that even "biodiversity" is being flagged by the federal government. We live in the dumbest timeline.
Congratulations @puginiercamille.bsky.social!!! You did an exceptional job and demonstrated excellent human skills! I'm sure you will have a brilliant scientific career ;) it has been a pleasure and a honor to work with you!
Officially a doctor ✅
I’m officially saying bye to @lrsv-toulouse.bsky.social 👋🏼
It’s been 4 amazing years!
Thanks @kellerjeanphd.bsky.social and @pierremarcdelaux.bsky.social for the SUPERvision
Thank you to the EVO team 🙏🏼
Finally, huge thanks to the members of my jury!
Let’s see what’s next now 🔜
I’m officially saying bye to @lrsv-toulouse.bsky.social 👋🏼
It’s been 4 amazing years!
Thanks @kellerjeanphd.bsky.social and @pierremarcdelaux.bsky.social for the SUPERvision
Thank you to the EVO team 🙏🏼
Finally, huge thanks to the members of my jury!
Let’s see what’s next now 🔜
February 8, 2025 at 1:01 PM
Congratulations @puginiercamille.bsky.social!!! You did an exceptional job and demonstrated excellent human skills! I'm sure you will have a brilliant scientific career ;) it has been a pleasure and a honor to work with you!
What a good way to start 2025 🥳very happy to see this out and to have been part of the journey!
Really pleased to transition from 2024 to 2025 with Tatiana Vernie's work on the evolution of the common symbiosis pathway published @pnas.org 🔽
We finally demonstrate that ☘️ have maintained a genetic pathway to engage with🍄for half a billion years!
www.pnas.org/doi/10.1073/...
We finally demonstrate that ☘️ have maintained a genetic pathway to engage with🍄for half a billion years!
www.pnas.org/doi/10.1073/...
Conservation of symbiotic signaling since the most recent common ancestor of land plants | PNAS
Plants have colonized lands 450 million years ago. This terrestrialization was facilitated
by developmental and functional innovations. Recent evo-...
www.pnas.org
January 1, 2025 at 2:12 PM
What a good way to start 2025 🥳very happy to see this out and to have been part of the journey!
Reposted by Jean Keller, PhD
Delighted to present an updated version of our LysM-RLK/AM symbiosis story in Marchantia! @lrsv-toulouse.bsky.social www.biorxiv.org/content/10.1...
LysM-RLK plays an ancestral symbiotic function in plants
Arbuscular mycorrhiza (AM) with soilborne Glomeromycota fungi was pivotal in the conquest of land by plants almost half a billion years ago. In flowering plants, it is hypothesised that AM is initiate...
www.biorxiv.org
December 6, 2024 at 7:51 PM
Delighted to present an updated version of our LysM-RLK/AM symbiosis story in Marchantia! @lrsv-toulouse.bsky.social www.biorxiv.org/content/10.1...
Reposted by Jean Keller, PhD
Hi everyone!! We are excited to be here as a community of scientists working on #plantscience ☘️🌱 and their associated microbes 🍄 !
Want to follow our institute members? Here is our starter pack (to be updated):
go.bsky.app/9p1bZz2
Want to follow our institute members? Here is our starter pack (to be updated):
go.bsky.app/9p1bZz2
November 20, 2024 at 7:51 AM
Hi everyone!! We are excited to be here as a community of scientists working on #plantscience ☘️🌱 and their associated microbes 🍄 !
Want to follow our institute members? Here is our starter pack (to be updated):
go.bsky.app/9p1bZz2
Want to follow our institute members? Here is our starter pack (to be updated):
go.bsky.app/9p1bZz2