Omaya Dudin 𓂆 ¦🍉¦🦠¦🔬¦
@dudinlab.bsky.social
Asst. Prof. at University of Geneva
Evolutionary cell biology & multicellular developmental diversity of protists
www.dudinlab.com
#Ichthyosporea, #Multicellularity, #Evolution, #Embryo, #Development, #Protist, #UExM, #Cytoskeleton, #Expansion #Microscopy
Evolutionary cell biology & multicellular developmental diversity of protists
www.dudinlab.com
#Ichthyosporea, #Multicellularity, #Evolution, #Embryo, #Development, #Protist, #UExM, #Cytoskeleton, #Expansion #Microscopy
Pinned
Omaya Dudin
Interview with Omaya Dudin, who uses Ichthyosporea as models to study how and why
unicellular organisms evolved multicellularity at the University of Geneva.
www.cell.com
90% of you probably don’t need to read this.
But maybe some of you are curious & 10% will feel seen. Or a little less alone. This isn’t about seeking sympathy.
It’s about sharing something hard to say out loud;
partly to heal, partly in case someone needs to hear it too. (1/3)
tinyurl.com/DudinO
But maybe some of you are curious & 10% will feel seen. Or a little less alone. This isn’t about seeking sympathy.
It’s about sharing something hard to say out loud;
partly to heal, partly in case someone needs to hear it too. (1/3)
tinyurl.com/DudinO
Reposted by Omaya Dudin 𓂆 ¦🍉¦🦠¦🔬¦
Finally, we’ve solved a long-standing mystery: what tintinnid shells are actually made of:
A new class of biomaterial formed by remarkable structural proteins unique to tintinnids.
A major milestone after 3 years of work! Read about it in our preprint: doi.org/10.64898/202...
#ProtistsOnSky
A new class of biomaterial formed by remarkable structural proteins unique to tintinnids.
A major milestone after 3 years of work! Read about it in our preprint: doi.org/10.64898/202...
#ProtistsOnSky
December 27, 2025 at 10:30 AM
Finally, we’ve solved a long-standing mystery: what tintinnid shells are actually made of:
A new class of biomaterial formed by remarkable structural proteins unique to tintinnids.
A major milestone after 3 years of work! Read about it in our preprint: doi.org/10.64898/202...
#ProtistsOnSky
A new class of biomaterial formed by remarkable structural proteins unique to tintinnids.
A major milestone after 3 years of work! Read about it in our preprint: doi.org/10.64898/202...
#ProtistsOnSky
Reposted by Omaya Dudin 𓂆 ¦🍉¦🦠¦🔬¦
Another #notTHECover unfortunately.
But this gorgeous, Tron-like vibe, drawn by the amazing @munafomarzia.bsky.social for our recent #ExM work with @gautamdey.bsky.social & @centriolelab.bsky.social will still be printed out in the lab.
Read here: www.cell.com/cell/fulltex...
But this gorgeous, Tron-like vibe, drawn by the amazing @munafomarzia.bsky.social for our recent #ExM work with @gautamdey.bsky.social & @centriolelab.bsky.social will still be printed out in the lab.
Read here: www.cell.com/cell/fulltex...
December 26, 2025 at 1:47 PM
So happy for you @archaeon-alex.bsky.social !
Fully deservd ! & more awesome science to come!
Fully deservd ! & more awesome science to come!
I am beyond excited to announce that the Bisson Lab has a new home!!! Starting January 2026, I will join the Biology Department at Indiana University Bloomington as Associate Professor with tenure.
I am actively recruiting scientists across all levels. More in our website: bissonlab.com/join
[1/4]
I am actively recruiting scientists across all levels. More in our website: bissonlab.com/join
[1/4]
December 26, 2025 at 1:30 PM
So happy for you @archaeon-alex.bsky.social !
Fully deservd ! & more awesome science to come!
Fully deservd ! & more awesome science to come!
Another #notTHECover unfortunately.
But this gorgeous, Tron-like vibe, drawn by the amazing @munafomarzia.bsky.social for our recent #ExM work with @gautamdey.bsky.social & @centriolelab.bsky.social will still be printed out in the lab.
Read here: www.cell.com/cell/fulltex...
But this gorgeous, Tron-like vibe, drawn by the amazing @munafomarzia.bsky.social for our recent #ExM work with @gautamdey.bsky.social & @centriolelab.bsky.social will still be printed out in the lab.
Read here: www.cell.com/cell/fulltex...
December 26, 2025 at 11:53 AM
Another #notTHECover unfortunately.
But this gorgeous, Tron-like vibe, drawn by the amazing @munafomarzia.bsky.social for our recent #ExM work with @gautamdey.bsky.social & @centriolelab.bsky.social will still be printed out in the lab.
Read here: www.cell.com/cell/fulltex...
But this gorgeous, Tron-like vibe, drawn by the amazing @munafomarzia.bsky.social for our recent #ExM work with @gautamdey.bsky.social & @centriolelab.bsky.social will still be printed out in the lab.
Read here: www.cell.com/cell/fulltex...
Reposted by Omaya Dudin 𓂆 ¦🍉¦🦠¦🔬¦
A super detailed protocol + video on Cryo-ExM - Cryo-Expansion Microscopy, led by the labs of our former postdocs @marinelap.bsky.social & @ebertiaux.bsky.social.
Clear, practical, and very useful for anyone doing nanoscale imaging 🚀 app.jove.com/t/68595/expa...
Clear, practical, and very useful for anyone doing nanoscale imaging 🚀 app.jove.com/t/68595/expa...
December 25, 2025 at 1:41 PM
A super detailed protocol + video on Cryo-ExM - Cryo-Expansion Microscopy, led by the labs of our former postdocs @marinelap.bsky.social & @ebertiaux.bsky.social.
Clear, practical, and very useful for anyone doing nanoscale imaging 🚀 app.jove.com/t/68595/expa...
Clear, practical, and very useful for anyone doing nanoscale imaging 🚀 app.jove.com/t/68595/expa...
Reposted by Omaya Dudin 𓂆 ¦🍉¦🦠¦🔬¦
Excited to share the final version of our study on Nematostella cell type regulatory programs. Part of our @erc.europa.eu StG project, this was a challenging 5-year effort extraodinarily led by @aelek.bsky.social and @martaig.bsky.social.
www.nature.com/articles/s41...
www.nature.com/articles/s41...
Decoding cnidarian cell type gene regulation - Nature Ecology & Evolution
This study reconstructs the gene regulatory networks that define cell types in the sea anemone Nematostella vectensis, providing a valuable resource for comparative regulatory genomics and the evoluti...
www.nature.com
December 22, 2025 at 10:12 AM
Excited to share the final version of our study on Nematostella cell type regulatory programs. Part of our @erc.europa.eu StG project, this was a challenging 5-year effort extraodinarily led by @aelek.bsky.social and @martaig.bsky.social.
www.nature.com/articles/s41...
www.nature.com/articles/s41...
If you had to read one thing, next to whatever fireplace, waiting for Santa... well that's your read !
Thanks @jcellsci.bsky.social for this opportunity to contribute to your centenary collection with our take on the state of the field - 10 years after its modern reincarnation 🧪🌍
W/ @alebenoit.bsky.social @eelcotromer.bsky.social @fritzlaylin.bsky.social
journals.biologists.com/jcs/article/...
W/ @alebenoit.bsky.social @eelcotromer.bsky.social @fritzlaylin.bsky.social
journals.biologists.com/jcs/article/...
Evolutionary cell biology comes of age
Summary: This Perspective discusses how the discipline of evolutionary cell biology, by integrating evolutionary theory, comparative physiology and modern molecular approaches, works to understand how...
journals.biologists.com
December 19, 2025 at 5:19 PM
If you had to read one thing, next to whatever fireplace, waiting for Santa... well that's your read !
Reposted by Omaya Dudin 𓂆 ¦🍉¦🦠¦🔬¦
(1/n) What if you never had to make your bed? What if your laundry could fold itself? Folding is everywhere around us - but did you know that folding flat sheets are at the ❤️ of diversity of shapes in the animal world - since 500 million years ago. Our latest work: www.youtube.com/watch?v=nudC...
Self-folding laundry
YouTube video by PrakashLab
www.youtube.com
December 19, 2025 at 7:47 AM
(1/n) What if you never had to make your bed? What if your laundry could fold itself? Folding is everywhere around us - but did you know that folding flat sheets are at the ❤️ of diversity of shapes in the animal world - since 500 million years ago. Our latest work: www.youtube.com/watch?v=nudC...
Reposted by Omaya Dudin 𓂆 ¦🍉¦🦠¦🔬¦
Just on time for the holidays! Happy to share the published version of the discovery of leptophytes, a new deep-branching and widespread group of microalgae based on plastid MAGs (ptMAGs). Now with additional support from a mitochondrial MAG (mtMAG) of leptophytes.
www.nature.com/articles/s41...
www.nature.com/articles/s41...
Identification of a deep-branching lineage of algae using environmental plastid genomes - Nature Communications
Here, the authors leverage data from the Tara Oceans expeditions to perform a phylogeny-guided plastid genome-resolved metagenomic survey and provide 660 non-redundant plastid genomes from marine alga...
www.nature.com
December 18, 2025 at 9:48 AM
Just on time for the holidays! Happy to share the published version of the discovery of leptophytes, a new deep-branching and widespread group of microalgae based on plastid MAGs (ptMAGs). Now with additional support from a mitochondrial MAG (mtMAG) of leptophytes.
www.nature.com/articles/s41...
www.nature.com/articles/s41...
Reposted by Omaya Dudin 𓂆 ¦🍉¦🦠¦🔬¦
📣 #Job alert!
Looking to establish your own independent research in cell biology, development or evo-devo?
The @cnrs.fr is recruiting 7 scientists in that area of research.
Here are updated unofficial guidelines. Reach out to members of the committee if you have questions
c3n-cn.fr/section-24-w...
Looking to establish your own independent research in cell biology, development or evo-devo?
The @cnrs.fr is recruiting 7 scientists in that area of research.
Here are updated unofficial guidelines. Reach out to members of the committee if you have questions
c3n-cn.fr/section-24-w...
December 18, 2025 at 8:52 AM
📣 #Job alert!
Looking to establish your own independent research in cell biology, development or evo-devo?
The @cnrs.fr is recruiting 7 scientists in that area of research.
Here are updated unofficial guidelines. Reach out to members of the committee if you have questions
c3n-cn.fr/section-24-w...
Looking to establish your own independent research in cell biology, development or evo-devo?
The @cnrs.fr is recruiting 7 scientists in that area of research.
Here are updated unofficial guidelines. Reach out to members of the committee if you have questions
c3n-cn.fr/section-24-w...
Reposted by Omaya Dudin 𓂆 ¦🍉¦🦠¦🔬¦
Awesome opportunity to figure out the role of cytoplasmic bridges in choanos (or mESCs, if you're into those things somehow)
My lab is hiring a postdoc (ERC funded)! If you're interested, get in touch!
December 18, 2025 at 12:54 PM
Awesome opportunity to figure out the role of cytoplasmic bridges in choanos (or mESCs, if you're into those things somehow)
Reposted by Omaya Dudin 𓂆 ¦🍉¦🦠¦🔬¦
JOB ALERT: Operations Director (DCI–Lausanne).
The DCI, a joint initiative of EPFL, UNIL, UNIGE and UNIBE, is recruiting an Operations Director to lead the cryo-EM facility in Lausanne.
📩 Questions: CEO of the DCI: @chgenoud.bsky.social
🔗 Apply here: careers.epfl.ch/job/Lausanne...
The DCI, a joint initiative of EPFL, UNIL, UNIGE and UNIBE, is recruiting an Operations Director to lead the cryo-EM facility in Lausanne.
📩 Questions: CEO of the DCI: @chgenoud.bsky.social
🔗 Apply here: careers.epfl.ch/job/Lausanne...
December 17, 2025 at 12:00 PM
JOB ALERT: Operations Director (DCI–Lausanne).
The DCI, a joint initiative of EPFL, UNIL, UNIGE and UNIBE, is recruiting an Operations Director to lead the cryo-EM facility in Lausanne.
📩 Questions: CEO of the DCI: @chgenoud.bsky.social
🔗 Apply here: careers.epfl.ch/job/Lausanne...
The DCI, a joint initiative of EPFL, UNIL, UNIGE and UNIBE, is recruiting an Operations Director to lead the cryo-EM facility in Lausanne.
📩 Questions: CEO of the DCI: @chgenoud.bsky.social
🔗 Apply here: careers.epfl.ch/job/Lausanne...
Reposted by Omaya Dudin 𓂆 ¦🍉¦🦠¦🔬¦
Thrilled to see our review article "The evolutionary origins of synaptic proteins" highlighted on the cover of Nature Reviews Neuroscience 🤩.
www.nature.com/articles/s41...
@msarscentre.bsky.social 🧠✨🧬🌊🪼🧽
www.nature.com/articles/s41...
@msarscentre.bsky.social 🧠✨🧬🌊🪼🧽
December 17, 2025 at 3:25 PM
Thrilled to see our review article "The evolutionary origins of synaptic proteins" highlighted on the cover of Nature Reviews Neuroscience 🤩.
www.nature.com/articles/s41...
@msarscentre.bsky.social 🧠✨🧬🌊🪼🧽
www.nature.com/articles/s41...
@msarscentre.bsky.social 🧠✨🧬🌊🪼🧽
Humbled and honoured to join this club, alongside some of my scientific heroes and colleagues.
Grateful to my team, collaborators, and mentors &, just as much, to my wife, family and friends.
Grateful to my team, collaborators, and mentors &, just as much, to my wife, family and friends.
Congratulations to Prof. Omaya Dudin for receiving the Friedrich Miescher Award 2026!
Find out more: www.ls2.ch/awards/fried...
Prof. Dudin will present his award lecture at the LS2 Annual Meeting 2026 in Zurich: annual-meeting.ls2.ch/2026
@dudinlab.bsky.social @fmiscience.bsky.social
Find out more: www.ls2.ch/awards/fried...
Prof. Dudin will present his award lecture at the LS2 Annual Meeting 2026 in Zurich: annual-meeting.ls2.ch/2026
@dudinlab.bsky.social @fmiscience.bsky.social
December 17, 2025 at 9:50 AM
Humbled and honoured to join this club, alongside some of my scientific heroes and colleagues.
Grateful to my team, collaborators, and mentors &, just as much, to my wife, family and friends.
Grateful to my team, collaborators, and mentors &, just as much, to my wife, family and friends.
If you ever wondered why you'll never see me at #ASCB...
Trump just banned my Palestinian relatives from visiting the US. www.mediaite.com/politics/tru...
Trump Bans Palestinians From Entering the U.S. — Along With Five Countries
The Trump Administration expanded its travel ban to several more countries, including barring Palestinians from entering the U.S. due to a "terrorist presence"
www.mediaite.com
December 17, 2025 at 4:59 AM
If you ever wondered why you'll never see me at #ASCB...
Reposted by Omaya Dudin 𓂆 ¦🍉¦🦠¦🔬¦
🗞️ New preprint from the lab, led by our postdoc Ana Garoña (not on here) in collab with @andreagiometto.bsky.social: “Experimental evolution of cellular miniaturization reveals a mechanism for cell size evolution”, aka: “honey, we shrank the yeasts!” 🎥
www.biorxiv.org/content/10.6...
www.biorxiv.org/content/10.6...
December 9, 2025 at 5:08 PM
🗞️ New preprint from the lab, led by our postdoc Ana Garoña (not on here) in collab with @andreagiometto.bsky.social: “Experimental evolution of cellular miniaturization reveals a mechanism for cell size evolution”, aka: “honey, we shrank the yeasts!” 🎥
www.biorxiv.org/content/10.6...
www.biorxiv.org/content/10.6...
Maybe you ever wondered how Sea anemones can change drastically their sizes, maybe not ? Well now you probably have one part of the answer ...
Cell EXTRUSION !
Congrats @inesfournon.bsky.social & @prhsteinmetz.bsky.social
Cell EXTRUSION !
Congrats @inesfournon.bsky.social & @prhsteinmetz.bsky.social
Thrilled to share the preprint from my PhD! 🥳 Where I characterised epithelial cell extrusion in a sea anemone
🔗 www.biorxiv.org/content/10.6...
Big thanks to my supervisor @prhsteinmetz.bsky.social and coauthors @noahbruderer.bsky.social @lionlchristiaen.bsky.social at🇳🇴 @msarscentre.bsky.social ⬇️🧵
🔗 www.biorxiv.org/content/10.6...
Big thanks to my supervisor @prhsteinmetz.bsky.social and coauthors @noahbruderer.bsky.social @lionlchristiaen.bsky.social at🇳🇴 @msarscentre.bsky.social ⬇️🧵
December 16, 2025 at 1:32 PM
Maybe you ever wondered how Sea anemones can change drastically their sizes, maybe not ? Well now you probably have one part of the answer ...
Cell EXTRUSION !
Congrats @inesfournon.bsky.social & @prhsteinmetz.bsky.social
Cell EXTRUSION !
Congrats @inesfournon.bsky.social & @prhsteinmetz.bsky.social
Reposted by Omaya Dudin 𓂆 ¦🍉¦🦠¦🔬¦
Are you very busy but still want to learn what Aphelids are and why they are important to understand the evolution of Fungi?
Then check out our “Quick guide” on Aphelids published in collaboration with @deemteam.bsky.social, Sergey and Guifré. #protistsonsky
doi.org/10.1016/j.cu...
Then check out our “Quick guide” on Aphelids published in collaboration with @deemteam.bsky.social, Sergey and Guifré. #protistsonsky
doi.org/10.1016/j.cu...
December 15, 2025 at 5:41 PM
Are you very busy but still want to learn what Aphelids are and why they are important to understand the evolution of Fungi?
Then check out our “Quick guide” on Aphelids published in collaboration with @deemteam.bsky.social, Sergey and Guifré. #protistsonsky
doi.org/10.1016/j.cu...
Then check out our “Quick guide” on Aphelids published in collaboration with @deemteam.bsky.social, Sergey and Guifré. #protistsonsky
doi.org/10.1016/j.cu...
Reposted by Omaya Dudin 𓂆 ¦🍉¦🦠¦🔬¦
It has been so rewarding to combine all these different expertise
This work started more than 5 years ago and combines molecular phylogenetics, diversification models, paleoecology and micropaleontology, requiring ~136 CPU-years 🧬💻! A lovely interdisciplinary collaboration with @phoebefossil.bsky.social, Hélèn Morlon and @fburki.bsky.social.
#ProtistsOnSky
#ProtistsOnSky
December 15, 2025 at 8:23 AM
It has been so rewarding to combine all these different expertise
Reposted by Omaya Dudin 𓂆 ¦🍉¦🦠¦🔬¦
Interested in cell adhesion, evolution of multicellularity, or developing tools for emerging marine models?
My lab at UM is hiring a postdoc, and the application is now open:
🔗 tinyurl.com/28jvu4aa
If you know anyone looking for a postdoc, please pass this along!
My lab at UM is hiring a postdoc, and the application is now open:
🔗 tinyurl.com/28jvu4aa
If you know anyone looking for a postdoc, please pass this along!
December 8, 2025 at 6:37 PM
Interested in cell adhesion, evolution of multicellularity, or developing tools for emerging marine models?
My lab at UM is hiring a postdoc, and the application is now open:
🔗 tinyurl.com/28jvu4aa
If you know anyone looking for a postdoc, please pass this along!
My lab at UM is hiring a postdoc, and the application is now open:
🔗 tinyurl.com/28jvu4aa
If you know anyone looking for a postdoc, please pass this along!
#Microbial #Eukaryotes in #UExM on the cover of @natgenet.nature.com ! Unbelievable !!!
Also read the amazing work by @alexdemendoza.bsky.social and co !!!
Also read the amazing work by @alexdemendoza.bsky.social and co !!!
It is amazing that @dudinlab.bsky.social beautiful #ExM composition has been selected to highlight our #6mA work for the cover of @natgenet.nature.com. #Protists (and ichthyosporeans in particular) in the cover of NG must be quite unique!
December 11, 2025 at 12:04 PM
#Microbial #Eukaryotes in #UExM on the cover of @natgenet.nature.com ! Unbelievable !!!
Also read the amazing work by @alexdemendoza.bsky.social and co !!!
Also read the amazing work by @alexdemendoza.bsky.social and co !!!
Reposted by Omaya Dudin 𓂆 ¦🍉¦🦠¦🔬¦
We’re excited to announce the opening of the Geneva Expansion Microscopy Facility (GenExM)!
GenExM is a full-service U-ExM platform (U-ExM, Cryo-ExM, iU-ExM), delivering nanoscale imaging.
Led by Dr. Olivier Mercey, GenExM welcomes academic & industrial collaborations.
👉 www.unige.ch/genexm/
GenExM is a full-service U-ExM platform (U-ExM, Cryo-ExM, iU-ExM), delivering nanoscale imaging.
Led by Dr. Olivier Mercey, GenExM welcomes academic & industrial collaborations.
👉 www.unige.ch/genexm/
December 10, 2025 at 8:43 PM
We’re excited to announce the opening of the Geneva Expansion Microscopy Facility (GenExM)!
GenExM is a full-service U-ExM platform (U-ExM, Cryo-ExM, iU-ExM), delivering nanoscale imaging.
Led by Dr. Olivier Mercey, GenExM welcomes academic & industrial collaborations.
👉 www.unige.ch/genexm/
GenExM is a full-service U-ExM platform (U-ExM, Cryo-ExM, iU-ExM), delivering nanoscale imaging.
Led by Dr. Olivier Mercey, GenExM welcomes academic & industrial collaborations.
👉 www.unige.ch/genexm/
Reposted by Omaya Dudin 𓂆 ¦🍉¦🦠¦🔬¦
An 8-nm precise map in live cells, which revealed #actin aster formation by #myosin V-driven transport of #formin.
Happy to see this work now out! 😃
In collaboration with @kaksonen.bsky.social lab
#yeast #pombe #cell_fusion
@biology-unige.bsky.social
Happy to see this work now out! 😃
In collaboration with @kaksonen.bsky.social lab
#yeast #pombe #cell_fusion
@biology-unige.bsky.social
New work by @valthomas.bsky.social et al. in @sophiemartinlab.bsky.social provides a live, 8-nm precision map of the actin fusion focus for cell-cell fusion in S. #pombe. This reveals #actin aster formation by #myosin Myo52-driven transport of the formin Fus1 nucleator rupress.org/jcb/article/...
December 4, 2025 at 7:22 AM
An 8-nm precise map in live cells, which revealed #actin aster formation by #myosin V-driven transport of #formin.
Happy to see this work now out! 😃
In collaboration with @kaksonen.bsky.social lab
#yeast #pombe #cell_fusion
@biology-unige.bsky.social
Happy to see this work now out! 😃
In collaboration with @kaksonen.bsky.social lab
#yeast #pombe #cell_fusion
@biology-unige.bsky.social
Reposted by Omaya Dudin 𓂆 ¦🍉¦🦠¦🔬¦
1/28 New preprint up, which I think is the best theoretical idea I've ever had. We asked a simple question: what are the costs of investment into non-reproductive somatic cells? Turns out these costs decrease with the *logarithm* of organism size!
www.biorxiv.org/content/10.6...
www.biorxiv.org/content/10.6...
The fitness costs of reproductive specialization scale inversely with organismal size
The evolution of reproductive specialization represents a fundamental innovation in multicellular life, yet the conditions favoring its evolution remain poorly understood. Here, we develop a populatio...
www.biorxiv.org
December 9, 2025 at 7:44 PM
1/28 New preprint up, which I think is the best theoretical idea I've ever had. We asked a simple question: what are the costs of investment into non-reproductive somatic cells? Turns out these costs decrease with the *logarithm* of organism size!
www.biorxiv.org/content/10.6...
www.biorxiv.org/content/10.6...
Very much deserved ! Big Congrats @alexdemendoza.bsky.social & team ! Way to go.
Really happy to have been granted a #ERCCoG, grateful to the team who made this possible, and to the community who considered this work promising! If you (or someone you know) are/is interested in #chromatin evolution and #giantViruses, please do get in touch, there will be positions available.
The results of the ERC Consolidator Grant call have been announced! 📣
349 researchers have been selected for funding. Congratulations to all! #ERCCogG!
👉 buff.ly/uu62uFV
#FrontierResearch #EUfunded #HorizonEurope
@scienceinnovation.ec.europa.eu
349 researchers have been selected for funding. Congratulations to all! #ERCCogG!
👉 buff.ly/uu62uFV
#FrontierResearch #EUfunded #HorizonEurope
@scienceinnovation.ec.europa.eu
December 9, 2025 at 6:36 PM
Very much deserved ! Big Congrats @alexdemendoza.bsky.social & team ! Way to go.