Ferdinand Marlétaz
@ferdix.bsky.social
Comparative and regulatory genomics. Animal phylogeny and evolution
Reposted by Ferdinand Marlétaz
Pleased to share our latest paper led by @tomlewin.bsky.social, now out in @currentbiology.bsky.social! We present the first chromosome-level genome of a phoronid and show that shared chromosomal fusions unite phoronids and bryozoans as sister groups.
www.cell.com/current-biol...
www.cell.com/current-biol...
November 7, 2025 at 4:21 PM
Pleased to share our latest paper led by @tomlewin.bsky.social, now out in @currentbiology.bsky.social! We present the first chromosome-level genome of a phoronid and show that shared chromosomal fusions unite phoronids and bryozoans as sister groups.
www.cell.com/current-biol...
www.cell.com/current-biol...
Reposted by Ferdinand Marlétaz
Laurent Joly, historien. « L’union des droites on l’a déjà eue, c’est le gouvernement de Vichy »
Laurent Joly, historien. « L’union des droites on l’a déjà eue, c’est le gouvernement de Vichy »
Charlie Hebdo : Vous écrivez dans votre conclusion que la digue entre l’extrême droite pétainiste et la droite républicaine pourrait bientôt céder. Quels en sont les signaux ?Laurent Joly : Cette digue s’est formée au lendemain de la guerre. La droite nationaliste et l’extrême droite, compromises dans Vichy et le collaborationnisme, étaient complètement délégitimées après […]
charliehebdo.fr
November 1, 2025 at 10:24 PM
Laurent Joly, historien. « L’union des droites on l’a déjà eue, c’est le gouvernement de Vichy »
Reposted by Ferdinand Marlétaz
Come join the #LondonEvoDevo network half day meeting, hosted at @ucl.ac.uk on Friday November 7th, 2025. Submit your abstract by Oct 27th (or your interest in joining) here: forms.gle/TRbdrCkQTcY2.... Friendly vibes and free registration. More info here: londonevodevo.co.uk.
LondonEvoDevo
meeting's website
londonevodevo.co.uk
October 20, 2025 at 1:42 PM
Come join the #LondonEvoDevo network half day meeting, hosted at @ucl.ac.uk on Friday November 7th, 2025. Submit your abstract by Oct 27th (or your interest in joining) here: forms.gle/TRbdrCkQTcY2.... Friendly vibes and free registration. More info here: londonevodevo.co.uk.
Reposted by Ferdinand Marlétaz
Adding loops into a genome is a complicated and costly business for a cell. New findings suggest that it may be the reason that ancient life became complex. @philipcball.bsky.social reports:
www.quantamagazine.org/loops-of-dna...
www.quantamagazine.org/loops-of-dna...
Loops of DNA Equipped Ancient Life To Become Complex | Quanta Magazine
New work shows that physical folding of the genome to control genes located far away may have been an early evolutionary development.
www.quantamagazine.org
October 8, 2025 at 2:14 PM
Adding loops into a genome is a complicated and costly business for a cell. New findings suggest that it may be the reason that ancient life became complex. @philipcball.bsky.social reports:
www.quantamagazine.org/loops-of-dna...
www.quantamagazine.org/loops-of-dna...
Reposted by Ferdinand Marlétaz
Chaetognaths have lost gene body methylation and shifted #5mC back to Transposable Elements. This reversion to the ancestral state is coupled with a simplification of DNMT3 architecture. We posit that trans-splicing might compensate.
It is an honour to have contributed to this 20y struggle ⛰️.
It is an honour to have contributed to this 20y struggle ⛰️.
After nearly twenty years in the making, our attempt at understanding what makes the chaetognath phylum so unique has finally been published! www.nature.com/articles/s41...
with #LauraPiovani @dariagavr.bsky.social @alexdemendoza.bsky.social @chemamd.bsky.social and others /1
with #LauraPiovani @dariagavr.bsky.social @alexdemendoza.bsky.social @chemamd.bsky.social and others /1
The genomic origin of the unique chaetognath body plan - Nature
Genomic, single-cell transcriptomic and epigenetic analyses show that chaetognaths, following extensive gene loss in the gnathiferan lineage, relied on newly evolved genes and lineage-specific tandem ...
www.nature.com
August 14, 2025 at 7:53 AM
Chaetognaths have lost gene body methylation and shifted #5mC back to Transposable Elements. This reversion to the ancestral state is coupled with a simplification of DNMT3 architecture. We posit that trans-splicing might compensate.
It is an honour to have contributed to this 20y struggle ⛰️.
It is an honour to have contributed to this 20y struggle ⛰️.
Reposted by Ferdinand Marlétaz
A genome sequence and single-cell atlas of a marine worm species point towards bursts of gene emergence, duplication and loss as the drivers of lineage-specific body traits
go.nature.com/4oAI2nf
go.nature.com/4oAI2nf
The perplexing body plan of arrow worms decoded
A genome sequence and single-cell atlas of a marine worm species point towards bursts of gene emergence, duplication and loss as the drivers of lineage-specific body traits.
go.nature.com
August 13, 2025 at 4:04 PM
A genome sequence and single-cell atlas of a marine worm species point towards bursts of gene emergence, duplication and loss as the drivers of lineage-specific body traits
go.nature.com/4oAI2nf
go.nature.com/4oAI2nf
Reposted by Ferdinand Marlétaz
New Nature study (co-authored by Queen Mary researchers) reveals that arrow worms evolved unique organs by inventing brand-new genes — not just reusing old ones. 🧬🌊
🔗 www.qmul.ac.uk/sbbs/news/it...
@qmulse.bsky.social
🔗 www.qmul.ac.uk/sbbs/news/it...
@qmulse.bsky.social
Cracking the Genetic Code of Arrow Worms: How Chaetognaths Got Their Unique Body Plan
www.qmul.ac.uk
August 13, 2025 at 3:16 PM
New Nature study (co-authored by Queen Mary researchers) reveals that arrow worms evolved unique organs by inventing brand-new genes — not just reusing old ones. 🧬🌊
🔗 www.qmul.ac.uk/sbbs/news/it...
@qmulse.bsky.social
🔗 www.qmul.ac.uk/sbbs/news/it...
@qmulse.bsky.social
After nearly twenty years in the making, our attempt at understanding what makes the chaetognath phylum so unique has finally been published! www.nature.com/articles/s41...
with #LauraPiovani @dariagavr.bsky.social @alexdemendoza.bsky.social @chemamd.bsky.social and others /1
with #LauraPiovani @dariagavr.bsky.social @alexdemendoza.bsky.social @chemamd.bsky.social and others /1
The genomic origin of the unique chaetognath body plan - Nature
Genomic, single-cell transcriptomic and epigenetic analyses show that chaetognaths, following extensive gene loss in the gnathiferan lineage, relied on newly evolved genes and lineage-specific tandem ...
www.nature.com
August 13, 2025 at 4:38 PM
After nearly twenty years in the making, our attempt at understanding what makes the chaetognath phylum so unique has finally been published! www.nature.com/articles/s41...
with #LauraPiovani @dariagavr.bsky.social @alexdemendoza.bsky.social @chemamd.bsky.social and others /1
with #LauraPiovani @dariagavr.bsky.social @alexdemendoza.bsky.social @chemamd.bsky.social and others /1
Reposted by Ferdinand Marlétaz
This surprisingly relaxing footage is from SIX MILES under the ocean – and it’s the deepest ecosystem yet discovered
July 31, 2025 at 3:38 PM
This surprisingly relaxing footage is from SIX MILES under the ocean – and it’s the deepest ecosystem yet discovered
Reposted by Ferdinand Marlétaz
To all post-docs: The Genome Biology dept @embl.org
has an Independent faculty position. Fantastic place to set up your lab –great package: core funding, fantastic Ph.D. students, cutting edge core facilities & great colleagues. Closing date Sept 19th
embl.wd103.myworkdayjobs.com/en-US/EMBL/j...
has an Independent faculty position. Fantastic place to set up your lab –great package: core funding, fantastic Ph.D. students, cutting edge core facilities & great colleagues. Closing date Sept 19th
embl.wd103.myworkdayjobs.com/en-US/EMBL/j...
Group Leader - Genome Biology Unit
Are you ready to lead groundbreaking research in Genome Biology? Join us at EMBL! We are seeking a motivated scientist to lead an independent research group addressing exciting and original biological...
embl.wd103.myworkdayjobs.com
July 30, 2025 at 1:41 PM
To all post-docs: The Genome Biology dept @embl.org
has an Independent faculty position. Fantastic place to set up your lab –great package: core funding, fantastic Ph.D. students, cutting edge core facilities & great colleagues. Closing date Sept 19th
embl.wd103.myworkdayjobs.com/en-US/EMBL/j...
has an Independent faculty position. Fantastic place to set up your lab –great package: core funding, fantastic Ph.D. students, cutting edge core facilities & great colleagues. Closing date Sept 19th
embl.wd103.myworkdayjobs.com/en-US/EMBL/j...
Reposted by Ferdinand Marlétaz
Happy to see our latest work out in @molbioevol.bsky.social. We revisit the evolution of 5-methylcytosine across neglected eukaryotic supergroups, establishing an ancestral repressive role silencing genome invaders, both transposons and viral elements👾: academic.oup.com/mbe/advance-... 🧵 1/7
Repressive cytosine methylation is a marker of viral gene transfer across divergent eukaryotes
Abstract. Cytosine DNA methylation patterns vary widely across eukaryotes, with its ancestral roles being understood to have included both transposable ele
academic.oup.com
July 28, 2025 at 10:03 AM
Happy to see our latest work out in @molbioevol.bsky.social. We revisit the evolution of 5-methylcytosine across neglected eukaryotic supergroups, establishing an ancestral repressive role silencing genome invaders, both transposons and viral elements👾: academic.oup.com/mbe/advance-... 🧵 1/7
Reposted by Ferdinand Marlétaz
Thrilled to share that our latest work on marsupial heterochrony is now online at @cp-devcell.bsky.social @cellpress.bsky.social @lab-turner.bsky.social @crick.ac.uk We used scRNAseq to understand the asynchronous progression of developmental programmes in marsupials www.cell.com/developmenta...
Marsupial single-cell transcriptomics identifies temporal diversity in mammalian developmental programs
Menchero et al. generate a single-cell transcriptomic atlas in the opossum and show
rapid progression of transcriptional programs in specific tissues relative to morphological
landmarks. This shift in...
www.cell.com
July 24, 2025 at 5:07 PM
Thrilled to share that our latest work on marsupial heterochrony is now online at @cp-devcell.bsky.social @cellpress.bsky.social @lab-turner.bsky.social @crick.ac.uk We used scRNAseq to understand the asynchronous progression of developmental programmes in marsupials www.cell.com/developmenta...
Reposted by Ferdinand Marlétaz
We're recruiting a postdoc to study animal–algal symbiosis in green hydra at Academia Sinica, Taipei. If you're interested in symbiosis, genome biology, and sequencing technologies, get in touch! More at: sgel.biodiv.tw
July 22, 2025 at 7:31 AM
We're recruiting a postdoc to study animal–algal symbiosis in green hydra at Academia Sinica, Taipei. If you're interested in symbiosis, genome biology, and sequencing technologies, get in touch! More at: sgel.biodiv.tw
Reposted by Ferdinand Marlétaz
Is the deuterostome clade an artifact???
New paper with first author @anaserrasilva.bsky.social, Laura Piovani, Paschalis Natsidis and project co-led by Paschalia Kapli.
www.sciencedirect.com/science/arti...
New paper with first author @anaserrasilva.bsky.social, Laura Piovani, Paschalis Natsidis and project co-led by Paschalia Kapli.
www.sciencedirect.com/science/arti...
July 11, 2025 at 4:59 PM
Is the deuterostome clade an artifact???
New paper with first author @anaserrasilva.bsky.social, Laura Piovani, Paschalis Natsidis and project co-led by Paschalia Kapli.
www.sciencedirect.com/science/arti...
New paper with first author @anaserrasilva.bsky.social, Laura Piovani, Paschalis Natsidis and project co-led by Paschalia Kapli.
www.sciencedirect.com/science/arti...
Reposted by Ferdinand Marlétaz
"Animal origins: Looping back in time"
by Omar Matar & Ferdinand Marlétaz (@ferdix.bsky.social)
This is a Spotlight on new work that helps answer the question, "how did the chromatin folding mechanisms controlling gene regulation emerge during animal evolution?"
Check it out:
rb.gy/k53o8p
by Omar Matar & Ferdinand Marlétaz (@ferdix.bsky.social)
This is a Spotlight on new work that helps answer the question, "how did the chromatin folding mechanisms controlling gene regulation emerge during animal evolution?"
Check it out:
rb.gy/k53o8p
July 10, 2025 at 9:16 PM
"Animal origins: Looping back in time"
by Omar Matar & Ferdinand Marlétaz (@ferdix.bsky.social)
This is a Spotlight on new work that helps answer the question, "how did the chromatin folding mechanisms controlling gene regulation emerge during animal evolution?"
Check it out:
rb.gy/k53o8p
by Omar Matar & Ferdinand Marlétaz (@ferdix.bsky.social)
This is a Spotlight on new work that helps answer the question, "how did the chromatin folding mechanisms controlling gene regulation emerge during animal evolution?"
Check it out:
rb.gy/k53o8p
Reposted by Ferdinand Marlétaz
Tomorrow we'll welcome the EvoDevo community from UK and beyond @qmulsbbs.bsky.social @qmulse.bsky.social , organised by @chemamd.bsky.social @margaridamcm.bsky.social @ferdix.bsky.social @alexdemendoza.bsky.social , Roman Arguello and James Difrisco.
Poster by former lab member Giacomo Mogglioli
Poster by former lab member Giacomo Mogglioli
July 10, 2025 at 5:17 PM
Tomorrow we'll welcome the EvoDevo community from UK and beyond @qmulsbbs.bsky.social @qmulse.bsky.social , organised by @chemamd.bsky.social @margaridamcm.bsky.social @ferdix.bsky.social @alexdemendoza.bsky.social , Roman Arguello and James Difrisco.
Poster by former lab member Giacomo Mogglioli
Poster by former lab member Giacomo Mogglioli
Reposted by Ferdinand Marlétaz
Reposted by Ferdinand Marlétaz
Delighted to share our paper in @currentbiology.bsky.social iology.bsky.social with a palaeo-evo-devo perspective on the evolution of symmetry in echinoderms. Led by Steffi Woodgate with Frankie Dunn, @echinerd.bsky.social, @laurentformery.bsky.social & Sam Zamora
www.cell.com/current-biol...-5
www.cell.com/current-biol...-5
A new Cambrian stem-group echinoderm reveals the evolution of the anteroposterior axis
Woodgate et al. describe a new bilaterally symmetrical echinoderm, Atlascystis acantha,
from the Cambrian of Morocco. Comparisons of plate growth with other echinoderms reveal
that Atlascystis possess...
www.cell.com
June 26, 2025 at 8:25 AM
Delighted to share our paper in @currentbiology.bsky.social iology.bsky.social with a palaeo-evo-devo perspective on the evolution of symmetry in echinoderms. Led by Steffi Woodgate with Frankie Dunn, @echinerd.bsky.social, @laurentformery.bsky.social & Sam Zamora
www.cell.com/current-biol...-5
www.cell.com/current-biol...-5
Reposted by Ferdinand Marlétaz
Whoa. Stunning Man o War- Physalia image via @K_theHermit
June 24, 2025 at 3:19 PM
Whoa. Stunning Man o War- Physalia image via @K_theHermit
Reposted by Ferdinand Marlétaz
ATLASea Mission – Day 6
In the dissection room, the final sampling steps are underway
🔬 Tissue fragments are collected, labeled, weighed, and logged into a data sheet for full traceability
❄️ Samples are flash-frozen in liquid nitrogen at -196°C to preserve DNA quality for sequencing at Genoscope
In the dissection room, the final sampling steps are underway
🔬 Tissue fragments are collected, labeled, weighed, and logged into a data sheet for full traceability
❄️ Samples are flash-frozen in liquid nitrogen at -196°C to preserve DNA quality for sequencing at Genoscope
June 21, 2025 at 8:41 AM
ATLASea Mission – Day 6
In the dissection room, the final sampling steps are underway
🔬 Tissue fragments are collected, labeled, weighed, and logged into a data sheet for full traceability
❄️ Samples are flash-frozen in liquid nitrogen at -196°C to preserve DNA quality for sequencing at Genoscope
In the dissection room, the final sampling steps are underway
🔬 Tissue fragments are collected, labeled, weighed, and logged into a data sheet for full traceability
❄️ Samples are flash-frozen in liquid nitrogen at -196°C to preserve DNA quality for sequencing at Genoscope
Reposted by Ferdinand Marlétaz
I am looking for a new postdoc to join the lab. Interested in pluripotency, germ cells, and in investigating these in a genetically tractable cnidarian? Get in touch! We offer a long-term contract, excellent research environment, and a lovely city #Galway. www.urifranklab.org
June 20, 2025 at 1:24 PM
I am looking for a new postdoc to join the lab. Interested in pluripotency, germ cells, and in investigating these in a genetically tractable cnidarian? Get in touch! We offer a long-term contract, excellent research environment, and a lovely city #Galway. www.urifranklab.org
Reposted by Ferdinand Marlétaz
Suma Beach at Night, Yoshimune Arai 1910
June 19, 2025 at 8:53 PM
Suma Beach at Night, Yoshimune Arai 1910
Reposted by Ferdinand Marlétaz
Deep sea biologist Alan Jameson shares some info on Antarctic arrow worms! #chaetognatha #wormwednesday youtube.com/shorts/3j3fd...
Tiny deadly drifters in Antarctica - The Arrow Worm 🏹
YouTube video by Inkfish Expeditions
youtube.com
June 11, 2025 at 2:56 PM
Deep sea biologist Alan Jameson shares some info on Antarctic arrow worms! #chaetognatha #wormwednesday youtube.com/shorts/3j3fd...
Reposted by Ferdinand Marlétaz
Less than a week left to register and submit an abstract ‼️
Come & join us!
Come & join us!
May 27, 2025 at 8:08 PM
Less than a week left to register and submit an abstract ‼️
Come & join us!
Come & join us!
Reposted by Ferdinand Marlétaz
Fantastic opportunity! Lab, topic, team… a blast!
Job Alert! We are recruiting one postdoc to work on spiralian embryos and their crazy polar lobes. More info about this HFSP-funded position on our website baronelab.org: scroll to the end, click on "this could be you"...start your adventure!
May 28, 2025 at 8:04 AM
Fantastic opportunity! Lab, topic, team… a blast!