Varsha Mathur
@varshamathur.bsky.social
Evolutionary biologist | MSCA Postdoctoral Fellow @univienna | Previously EMBO Postdoctoral Fellow, JRF Brasenose College, Oxford Biology | protists/parasites/organelles 🔬🧬
Reposted by Varsha Mathur
Open Senior Bioinformatician position at
@sangerinstitute.bsky.social
Tree of Life, to work on the Biodiversity Cell Atlas initiative with @marakat.bsky.social and me.
📅 Apply by January 18
🔗 sanger.wd103.myworkdayjobs.com/en-US/Wellco...
Please share with anyone who might be interested!
@sangerinstitute.bsky.social
Tree of Life, to work on the Biodiversity Cell Atlas initiative with @marakat.bsky.social and me.
📅 Apply by January 18
🔗 sanger.wd103.myworkdayjobs.com/en-US/Wellco...
Please share with anyone who might be interested!
Senior Bioinformatician - Biodiversity Cell Atlas
Do you want to help us improve human health and understand life on Earth? Make your mark by shaping the future to enable or deliver life-changing science to solve some of humanity’s greatest challenge...
sanger.wd103.myworkdayjobs.com
January 2, 2026 at 1:12 PM
Open Senior Bioinformatician position at
@sangerinstitute.bsky.social
Tree of Life, to work on the Biodiversity Cell Atlas initiative with @marakat.bsky.social and me.
📅 Apply by January 18
🔗 sanger.wd103.myworkdayjobs.com/en-US/Wellco...
Please share with anyone who might be interested!
@sangerinstitute.bsky.social
Tree of Life, to work on the Biodiversity Cell Atlas initiative with @marakat.bsky.social and me.
📅 Apply by January 18
🔗 sanger.wd103.myworkdayjobs.com/en-US/Wellco...
Please share with anyone who might be interested!
Reposted by Varsha Mathur
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 Varsha Mathur
🎄 Just published 🎉! Our ongoing genome sequencing of the basal dinoflagellate Oxyrrhis marina uncovered a new lineage of endogenized Polinton-like viruses, OmPLV. Notably, OmPLV encodes ... [cont]
#VirEvol #MicroSky #Mevosky #SymbioSky #ProtistsOnSky
#VirEvol #MicroSky #Mevosky #SymbioSky #ProtistsOnSky
Endogenized polinton-like viruses in the dinoflagellate Oxyrrhis marina uncover novel PolB fusion
Marine viruses are ubiquitous entities that impact the biology of a large fraction of prokaryotic and eukaryotic diversity. Dinoflagellates are heterotrophic, mixotrophic and photosynthetic eukaryotes...
doi.org
December 23, 2025 at 4:39 PM
🎄 Just published 🎉! Our ongoing genome sequencing of the basal dinoflagellate Oxyrrhis marina uncovered a new lineage of endogenized Polinton-like viruses, OmPLV. Notably, OmPLV encodes ... [cont]
#VirEvol #MicroSky #Mevosky #SymbioSky #ProtistsOnSky
#VirEvol #MicroSky #Mevosky #SymbioSky #ProtistsOnSky
Reposted by Varsha Mathur
How did organs originated in the evolution of multicellularity? Despite their obvious importance, we still lack a theory of evolutionary organogenesis. Here's a @cp-trendsecolevo.bsky.social paper on how the placenta can offer answers @multicellgenome.bsky.social www.researchgate.net/profile/Oliv...
December 26, 2025 at 11:28 AM
How did organs originated in the evolution of multicellularity? Despite their obvious importance, we still lack a theory of evolutionary organogenesis. Here's a @cp-trendsecolevo.bsky.social paper on how the placenta can offer answers @multicellgenome.bsky.social www.researchgate.net/profile/Oliv...
Reposted by Varsha Mathur
Organisers
- Victoria Shabardina | @ibe-barcelona.bsky.social
- @ankarn.bsky.social | University of Warsaw
Invited Speaker
- @vikramalva.bsky.social | @mpi-bio-fml.bsky.social
- Victoria Shabardina | @ibe-barcelona.bsky.social
- @ankarn.bsky.social | University of Warsaw
Invited Speaker
- @vikramalva.bsky.social | @mpi-bio-fml.bsky.social
December 12, 2025 at 12:13 PM
Organisers
- Victoria Shabardina | @ibe-barcelona.bsky.social
- @ankarn.bsky.social | University of Warsaw
Invited Speaker
- @vikramalva.bsky.social | @mpi-bio-fml.bsky.social
- Victoria Shabardina | @ibe-barcelona.bsky.social
- @ankarn.bsky.social | University of Warsaw
Invited Speaker
- @vikramalva.bsky.social | @mpi-bio-fml.bsky.social
Reposted by Varsha Mathur
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 Varsha Mathur
This is still one of my very most favorite biological videos ever.
Vampyrella lateritia, a predatory amoeba: "OM NOM NOM NOM"
I'm absolutely fascinated by and how single cell organisms can display behaviors like target localization, pursuit, and predation.
Vampyrella lateritia, a predatory amoeba: "OM NOM NOM NOM"
I'm absolutely fascinated by and how single cell organisms can display behaviors like target localization, pursuit, and predation.
“A process which led from the amoeba to man appeared to the philosophers to be obviously a progress - though whether the amoeba would agree with this opinion is not known"
- Bertrand Russell, 1976.
Time-lapse video of Vampyrella lateritia eating Spirogyra algae from Science Source/Oliver Skibbe. 🦠
- Bertrand Russell, 1976.
Time-lapse video of Vampyrella lateritia eating Spirogyra algae from Science Source/Oliver Skibbe. 🦠
December 18, 2025 at 2:56 PM
This is still one of my very most favorite biological videos ever.
Vampyrella lateritia, a predatory amoeba: "OM NOM NOM NOM"
I'm absolutely fascinated by and how single cell organisms can display behaviors like target localization, pursuit, and predation.
Vampyrella lateritia, a predatory amoeba: "OM NOM NOM NOM"
I'm absolutely fascinated by and how single cell organisms can display behaviors like target localization, pursuit, and predation.
Reposted by Varsha Mathur
Happy to share a new preprint exploring the unusual biochemistry of a "weirdly" diverged cytochrome c in malaria parasites that exemplifies a lineage common to many apicomplexan parasites. @uofubiochem.bsky.social @uuhsresearch.bsky.social @uofutahcihd.bsky.social
www.biorxiv.org/content/10.6...
www.biorxiv.org/content/10.6...
A Divergent Cytochrome c in Malaria Parasites with an Anomalously Low Redox Potential
Eukaryotic cytochrome (cyt) c is a highly conserved mitochondrial protein central to cellular respiration, featuring a covalently attached hexacoordinate heme whose redox potential is tuned by axial H...
www.biorxiv.org
December 26, 2025 at 4:37 PM
Happy to share a new preprint exploring the unusual biochemistry of a "weirdly" diverged cytochrome c in malaria parasites that exemplifies a lineage common to many apicomplexan parasites. @uofubiochem.bsky.social @uuhsresearch.bsky.social @uofutahcihd.bsky.social
www.biorxiv.org/content/10.6...
www.biorxiv.org/content/10.6...
Reposted by Varsha Mathur
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 4:13 PM
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/...
Reposted by Varsha Mathur
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 Varsha Mathur
Those interested in performing maximum likelihood phylogenomic analysis on data sets made up of eukaryotic nuclear genes using site heterogeneous mixture models like C60, I suggest you use the ELM model in IQ-TREE instead of the LG model /1
December 9, 2025 at 7:21 PM
Reposted by Varsha Mathur
Wow! Radler et al. doi.org/10.1101/2025... These are #asgardarchaea with what? Pseudopodia? Should we call them archaepodia analogously to archaellum? Mindblowing anyway!
December 3, 2025 at 8:08 AM
Wow! Radler et al. doi.org/10.1101/2025... These are #asgardarchaea with what? Pseudopodia? Should we call them archaepodia analogously to archaellum? Mindblowing anyway!
Reposted by Varsha Mathur
Open postdoc position at @sangerinstitute.bsky.social Tree of Life to contribute to the Biodiversity Cell Atlas, with a focus on spatial transcriptomics.
Apply by January 4
sanger.wd103.myworkdayjobs.com/en-GB/Wellco...
Please share with anyone who might be interested!
Apply by January 4
sanger.wd103.myworkdayjobs.com/en-GB/Wellco...
Please share with anyone who might be interested!
Postdoctoral Fellow - Biodiversity Cell Atlas
Do you want to help us improve human health and understand life on Earth? Make your mark by shaping the future to enable or deliver life-changing science to solve some of humanity’s greatest challenge...
sanger.wd103.myworkdayjobs.com
December 3, 2025 at 12:27 PM
Open postdoc position at @sangerinstitute.bsky.social Tree of Life to contribute to the Biodiversity Cell Atlas, with a focus on spatial transcriptomics.
Apply by January 4
sanger.wd103.myworkdayjobs.com/en-GB/Wellco...
Please share with anyone who might be interested!
Apply by January 4
sanger.wd103.myworkdayjobs.com/en-GB/Wellco...
Please share with anyone who might be interested!
Reposted by Varsha Mathur
Excited to release the Herculean efforts of @scottchisholm.bsky.social &Co. defining the subcellular #hyperLOPIT spatial proteome of #Plasmodium schizonts. Proteomes defining 24 subcellular niches, including exported compartments in the blood cell, are identified.
www.biorxiv.org/content/10.1...
www.biorxiv.org/content/10.1...
November 28, 2025 at 8:30 AM
Excited to release the Herculean efforts of @scottchisholm.bsky.social &Co. defining the subcellular #hyperLOPIT spatial proteome of #Plasmodium schizonts. Proteomes defining 24 subcellular niches, including exported compartments in the blood cell, are identified.
www.biorxiv.org/content/10.1...
www.biorxiv.org/content/10.1...
Reposted by Varsha Mathur
So proud to watch Jana turn a side quest into an entire research programme. Couldn’t imagine a more well-deserved outcome. 😍
The mighty yeast reveals what we believe are general principles of centromere evolution!
Behind the curtain: communities.springernature.com/posts/counti...
#MEvoSky 🧪🌎
The mighty yeast reveals what we believe are general principles of centromere evolution!
Behind the curtain: communities.springernature.com/posts/counti...
#MEvoSky 🧪🌎
November 27, 2025 at 9:21 AM
So proud to watch Jana turn a side quest into an entire research programme. Couldn’t imagine a more well-deserved outcome. 😍
The mighty yeast reveals what we believe are general principles of centromere evolution!
Behind the curtain: communities.springernature.com/posts/counti...
#MEvoSky 🧪🌎
The mighty yeast reveals what we believe are general principles of centromere evolution!
Behind the curtain: communities.springernature.com/posts/counti...
#MEvoSky 🧪🌎
Reposted by Varsha Mathur
Natural and artificial variations of the standard genetic code
Great new review by Julius Lukes & colleagues 👇
www.cell.com/current-biol...
Great new review by Julius Lukes & colleagues 👇
www.cell.com/current-biol...
November 26, 2025 at 11:54 PM
Natural and artificial variations of the standard genetic code
Great new review by Julius Lukes & colleagues 👇
www.cell.com/current-biol...
Great new review by Julius Lukes & colleagues 👇
www.cell.com/current-biol...
Reposted by Varsha Mathur
Models and co-culture experiments assess four mechanisms of phytoplankton–bacteria interactions www.nature.com/articles/s41... #jcampubs
Models and co-culture experiments assess four mechanisms of phytoplankton–bacteria interactions - Nature Microbiology
Mathematical representations of overflow metabolism, mixotrophy, exoenzymes and reactive oxygen species detoxification recapitulate dynamics in co-cultures of Prochlorococcus and eight heterotrophic b...
www.nature.com
November 24, 2025 at 2:52 PM
Models and co-culture experiments assess four mechanisms of phytoplankton–bacteria interactions www.nature.com/articles/s41... #jcampubs
Reposted by Varsha Mathur
Rubisco is slow across the tree of life www.pnas.org/doi/abs/10.1... #jcampubs
Rubisco is slow across the tree of life | PNAS
Rubisco is the main gateway through which inorganic carbon enters the biosphere, catalyzing
the vast majority of carbon fixation on Earth. This piv...
www.pnas.org
November 21, 2025 at 3:56 PM
Rubisco is slow across the tree of life www.pnas.org/doi/abs/10.1... #jcampubs
Reposted by Varsha Mathur
now i've seen everything... 😱
don't care what anybody says but #protists are cognitive
don't care what anybody says but #protists are cognitive
Cellular structure self-organizes through an interplay between internal mechanisms and external cues. The single-celled suctorian P. collini builds a trap structure to capture large prey using microtubule feeding tentacles, creating feedback between cell morphology and prey availability.
November 19, 2025 at 1:46 PM
now i've seen everything... 😱
don't care what anybody says but #protists are cognitive
don't care what anybody says but #protists are cognitive
Reposted by Varsha Mathur
Is it a flagellate? A tiny ball with tentacles? Contamination in my ciliate culture? NEW SUPERGROUP OF EUKARYOTES? Yes to all 4! Meet Solarion - just out in #Nature doi.org/10.1038/s415... Huge congrats to Marek Valt, Cepicka Lab & the star team! Very happy to be part of this project. #ProtistsOnSky
November 19, 2025 at 9:39 PM
Is it a flagellate? A tiny ball with tentacles? Contamination in my ciliate culture? NEW SUPERGROUP OF EUKARYOTES? Yes to all 4! Meet Solarion - just out in #Nature doi.org/10.1038/s415... Huge congrats to Marek Valt, Cepicka Lab & the star team! Very happy to be part of this project. #ProtistsOnSky
Reposted by Varsha Mathur
Out today, our take on 6-methyladenine #6mA evolution in Eukaryotes @natgenet.nature.com. We asked a simple question, is really DNA 6mA common across the eukaryotes? The answer is "yes" if you're a unicellular eukaryote 🦠, not so if you're multicellular 🐝🌱🍄. www.nature.com/articles/s41... 1/9
Adenine DNA methylation associated with transcriptionally permissive chromatin is widespread across eukaryotes - Nature Genetics
Long-read sequencing in 18 unicellular eukaryotes reveals that 6mA is widespread across eukaryotes and is enriched at transcriptionally permissive regions, which are also marked by H3K4me3.
www.nature.com
November 18, 2025 at 12:00 PM
Out today, our take on 6-methyladenine #6mA evolution in Eukaryotes @natgenet.nature.com. We asked a simple question, is really DNA 6mA common across the eukaryotes? The answer is "yes" if you're a unicellular eukaryote 🦠, not so if you're multicellular 🐝🌱🍄. www.nature.com/articles/s41... 1/9
Reposted by Varsha Mathur
Our work on Naegleria Myosin 2 is out!
Naegleria encodes 3 Myo2s which contract its actin network—the first evidence of contractile Myo2 outside of Amorphea.
Myo2 is actually widespread in Naegleria's relatives and correlates with fast cell crawling.
Read more: www.cell.com/current-biol...
Naegleria encodes 3 Myo2s which contract its actin network—the first evidence of contractile Myo2 outside of Amorphea.
Myo2 is actually widespread in Naegleria's relatives and correlates with fast cell crawling.
Read more: www.cell.com/current-biol...
Myosin 2 drives actin contractility in fast-crawling species outside of the amorphean lineage
Myosin 2-dependent actin contractility—the force that powers cell division and migration
in animals, fungi, and other Amorphea—had been previously unknown outside this single
eukaryotic group. Guest e...
www.cell.com
November 17, 2025 at 5:19 PM
Our work on Naegleria Myosin 2 is out!
Naegleria encodes 3 Myo2s which contract its actin network—the first evidence of contractile Myo2 outside of Amorphea.
Myo2 is actually widespread in Naegleria's relatives and correlates with fast cell crawling.
Read more: www.cell.com/current-biol...
Naegleria encodes 3 Myo2s which contract its actin network—the first evidence of contractile Myo2 outside of Amorphea.
Myo2 is actually widespread in Naegleria's relatives and correlates with fast cell crawling.
Read more: www.cell.com/current-biol...
Reposted by Varsha Mathur
It is a collaboration between my lab (Uppsala U) and the labs of @dudinlab.bsky.social (Geneva U) and @filiphusnik.bsky.social (OIST). More info and how to apply here:
uu.varbi.com/en/what:job/.... (The use of AI for writing the motivation letter is discouraged and will be regarded unfavourably) 2/2
uu.varbi.com/en/what:job/.... (The use of AI for writing the motivation letter is discouraged and will be regarded unfavourably) 2/2
PhD student in systematic biology
The Department of Organismal Biology teaches and explores the evolution, development and function on the organismal level. For more information see Department of Organismal Biology - Uppsala Universit
uu.varbi.com
November 12, 2025 at 9:50 AM
It is a collaboration between my lab (Uppsala U) and the labs of @dudinlab.bsky.social (Geneva U) and @filiphusnik.bsky.social (OIST). More info and how to apply here:
uu.varbi.com/en/what:job/.... (The use of AI for writing the motivation letter is discouraged and will be regarded unfavourably) 2/2
uu.varbi.com/en/what:job/.... (The use of AI for writing the motivation letter is discouraged and will be regarded unfavourably) 2/2
Reposted by Varsha Mathur
Wound healing is a hallmark feature of all life, including single cells. In a new preprint, Ambika Nadkarni @biochembika.bsky.social investigates a new dimension in cellular wound healing: how cells recover AFTER the wound has been closed
www.biorxiv.org/content/10.1...
www.biorxiv.org/content/10.1...
November 10, 2025 at 5:47 PM
Wound healing is a hallmark feature of all life, including single cells. In a new preprint, Ambika Nadkarni @biochembika.bsky.social investigates a new dimension in cellular wound healing: how cells recover AFTER the wound has been closed
www.biorxiv.org/content/10.1...
www.biorxiv.org/content/10.1...