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Julia Van Etten

@couchmicroscopy.bsky.social
1.9K followers 1.1K following 370 posts

Assistant Professor of Biology at University of Maryland • Passionate about algae / protists + HGT + genomics + evolutionary biology + microscopy • vanettenlab.org #NewPI Opinions are my own.

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Reposted by Julia Van Etten
John Burns @burnsajohn.bsky.social · 6h
A planktic melange from the Gulf of Maine featuring juicy diatom chains from 100m depth waters.
A microscope image of a bunch of diatoms from a plankton tow in the Gulf of Maine
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Julia Van Etten @couchmicroscopy.bsky.social · 29/09/2026
Spread the word! I’m looking to recruit a PhD student to grow the Paulinella project. Some details can be found here: www.vanettenlab.org/join
vanettenlab.org
Join! — Van Etten lab at UMD
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Ben Long @botbml.bsky.social · 27/09/2026
Spatial proteomics reveals carboxysome adaptation and mitochondrial proteome in Paulinella chromatophora www.cell.com/current-biol...
cell.com
Spatial proteomics reveals carboxysome adaptation and mitochondrial proteome in Paulinella chromatophora
Using LOPIT-DC-based spatial proteomics, Cadena et al. map the sub-organellar protein landscape of Paulinella chromatophora, a cercozoan with evolutionary-early-stage photosynthetic organelles. They f...
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Julia Van Etten @couchmicroscopy.bsky.social · 27/09/2026
I love this! Thanks for sharing Maggi! (Also, I have had many of those exact filter holders get too much back-pressure from a pump in the lab or field and spray absolutely disgusting, gag-inducing, sulfurous gray water in my face!)
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Reposted by Julia Van Etten
Dr. Davey F. Wright ⛏️🦕🧬 @daveyfwright.bsky.social · 26/09/2026
"Our results highlight the limits of using extant, species-depauperate lineages to infer deep ancestors and the importance of fossils and other evidence that more directly sample early evolutionary history."
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Julia Van Etten @couchmicroscopy.bsky.social · 26/09/2026
Protists deserve the spotlight and so do scientists! This was such an honor but mostly, this project reminded me why I have the best job and friends/colleagues in the world! 🔬
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eric lai @lucksmith.bsky.social · 26/09/2026
inspiring journey to read amidst bleak times for US science @couchmicroscopy.bsky.social! (still grappling with news yesterday there is no love for my 9% then 3% R01 renewal at end of fiscal year). however, i smirked at this line. (pooters aka mouth pipettors are still used by some fly fanciers). 🪰
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John Tuthill @tuthill.bsky.social · 26/09/2026
this story about @couchmicroscopy.bsky.social captures science at its best: a scrappy team, a homemade microscope in a motel room, working under funding duress, pursuing a fundamental question about the evolution of photosynthetic organelles. www.nytimes.com/2026/09/26/s...
nytimes.com
In an $80 Motel Room, a Discovery to Shed Light on the Origins of Life
A scrappy science project led to a significant discovery: two new species of a rare organism that could elucidate a fundamental transition in the history of life on our planet.
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Hypothesis Fund @hypothesisfund.bsky.social · 24/09/2026
💫 Meet our latest awardees, who are pushing the boundaries of what we know about brain aging, protease specificity, immune inheritance, ocean food webs, & cell physics. Learn more about their projects: bit.ly/HFAwardees. Join us in celebrating the them in our 🧵 below! /1
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Kathleen Bachynski @bachynski.bsky.social · 24/09/2026
“When I was in kindergarten in 1961, I survived a near-fatal case of measles… my clearest memory of that period is my father carrying me to our station wagon & rushing me to the hospital. I stayed for a month, part of it in a coma, my blood pressure dangerously unstable” @jackiantonovich.bsky.social
statnews.com
Measles almost killed me. Now I’m a doctor — and I'm scared of what's happening
Jewel Mullen was in kindergarten in 1961 when she almost died from measles. Now a physician, measles’ return frightens her.
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Julia Van Etten @couchmicroscopy.bsky.social · 23/09/2026
Congrats to Beryl and Angela, et al! This is amazing work!!!
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Julia Van Etten @couchmicroscopy.bsky.social · 22/09/2026
Listen to Chuck Delwiche talk about the origin of eukaryotes, algae, and plants on the Crime Pays podcast!
open.spotify.com
Paleobotanical Origins of The Reflecting Pool Disaster
Crime Pays But Botany Doesn't · Episode
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Julia Van Etten @couchmicroscopy.bsky.social · 21/09/2026
You all have been asking me for years if James Van Etten, discoverer of giant viruses, is my dad or uncle. He is not and we had never met until a month ago. Listen to this podcast episode to learn about Jim’s fascinating 60+ year career, why chloroviruses are cool, and if we are indeed related!
open.spotify.com
Giant Algal Viruses with The J Van Ettens
Tiny Living Beings · Episode
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CosmicRami 🏳️‍🌈🏳️‍⚧️ @rami.spaceaustralia.com · 04/09/2026
An incredible image, and overall winner of this year's Australian Geographic Nature Photography award. Using a DJI Mavic 3 Pro (drone), Matt Deakin captured an extremely rare moment - seeing a critically endangered Sawfish in the wild and passing by a Turtle, off the Pilbara coast in WA.
Aerial image of a Sawfish as it swims below and past a turtle
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Joshua Weitz @joshuasweitz.bsky.social · 18/09/2026
The White House budget proposal for FY27 slash NSF funding by more than 50% and would drastically reduce support for PhDs, postdocs & investigator-initiated research. Selling something is not the same as doing something. Science is hard. This 'new golden age' won't make it easier.
US NSF announces

"Science: A New Golden Age Summit"

Washington
Discover the frontier
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Doudna Lab @doudna-lab.bsky.social · 19/09/2026
Out now in Science: Two papers from our lab reveal VIPR, an RNA-guided DNA-targeting system in bacteriophages, providing clues to the origins of CRISPR www.science.org/doi/10.1126/... www.science.org/doi/10.1126/... Congrats to Peter Yoon, @kenjmloi.bsky.social @terryzzy.bsky.social, T.Docter & team
science.org
A noncontiguous code for RNA-guided DNA recognition at the origin of CRISPR-Cas
CRISPR-Cas provides RNA-mediated adaptive immunity, but how its first RNA-guided effector arose is unclear. In this study, we report the discovery of Viral Interference Programmable Repeat (VIPR) syst...
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Julia Van Etten @couchmicroscopy.bsky.social · 17/09/2026
Yikes! Scientists are pushing back on this and I totally agree with their criticism, but what I worry about the most here is that others outside of academic science (e.g., in Silicon Valley) will veer into their typical reductionist mindset and declare, “we’ve solved papers!” 🤮
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Claus Wilke @clauswilke.com · 15/09/2026
The Department of Integrative Biology at UT Austin has two open positions for assistant professors, one in evolutionary biology and one in mechanistic processes. Please share. Apply here: apply.interfolio.com/193270
Two Assistant Professor Positions in Evolutionary Biology and Mechanistic Processes

Description
The Department of Integrative Biology at The University of Texas at Austin seeks to fill two faculty positions in the areas of Evolutionary Biology and Mechanistic Processes, broadly defined. We are looking for candidates who are advancing (1) evolutionary biology or (2) the mechanistic understanding of organismal processes. These positions will be filled at the level of Assistant Professor.


Qualifications
Candidates should be using innovative approaches in evolutionary biology and/or the mechanistic understanding of whole-organism processes. Mechanistic processes include, but are not limited to, behavior, biomechanics, cognition, physiology, and development. The phylogenetic scope of the Evolutionary Biology position may include eukaryotes, prokaryotes, viruses, and the scale may include individual molecules to entire ecosystems and beyond. Candidates for either position may employ experimental, theoretical, or computational frameworks, or a combination thereof. Special consideration will be given to applicants with demonstrated potential for integrating across our target disciplines. 

We seek applicants with a strong record of high-quality research, publications, potential for extramural funding, and a commitment to excellence in teaching and mentorship. A PhD or equivalent is required at the time of appointment, and postdoctoral research experience is strongly recommended.
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Evgenii Protasov @evgenii-protasov.bsky.social · 14/09/2026
Phylogeny-guided curation reveals widespread misannotation of Asgard archaeal 16S rRNA gene sequences in public databases #microbiology #archaea #Asgard #MicroSky @isme-microbes.bsky.social doi.org/10.1093/isme...
doi.org
Phylogeny-guided curation reveals widespread misannotation of Asgard archaeal 16S rRNA gene sequences in public databases
Abstract. Accurate taxonomic assignment of 16S rRNA gene sequences is essential for the reliable interpretation of microbial community studies based on amp
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Diversify Microbiology @diversifymicro.bsky.social · 11/09/2026
UNC Greensboro Department of Biology is hiring for three positions this year including one in microbiology! spartantalent.uncg.edu/postings/35918
spartantalent.uncg.edu
Assistant Professor Microbiology
The Department of Biology at UNC Greensboro (UNCG) seeks an individual with a strong record of accomplishment in microbiology broadly defined for a tenure-track faculty position at the rank of Assista...
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Julia Van Etten @couchmicroscopy.bsky.social · 11/09/2026
9/11 mentally and physically impacted my family in ways I won’t discuss here. More than 9000 people have died from illness related to toxic debris exposure since (>3x more than attack itself) with thousands of others sick. Some of this could have been prevented if the city didn’t put $ over safety.
podcasts.apple.com
The Lives That 9/11 Keeps Taking
Podcast Episode · The Daily · September 11 · 38m
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Omaya Dudin 𓂆 ¦🍉¦🦠¦🔬¦ @dudinlab.bsky.social · 11/09/2026
We wanted to share this asap for everyone to use ! This will remain a #preprint for the time being. We are happy to recieve feedback, hear whether or not ot works in your hands and continue to apply it across #eukaryotes as part of #ExÂME You want to know more : www.dudinlab.com/exame
dudinlab.com
Research
ExÂME is the Expansion Microscopy Atlas of Microbial Eukaryotes, a community-driven project uncovering the hidden cellular architectures of protists and microbial eukaryotes. Supported by the Moore Fo...
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Paul Rainey @paulbrainey.bsky.social · 07/09/2026
A beautiful piece of detective work by @honour.bsky.social + colleagues revealing the origins of Ralstonia disease of bananas on Martinique. As so often, ICEs (ICERs!) prove to be extraordinary capacitors for evolutionary change. Evolution for evolution's sake 🤔 doi.org/10.1093/gbe/...
doi.org
Interspecies Exchange of Mobile Genetic Elements During a Plant Disease Outbreak
Abstract. Outbreak sequencing provides insight into the origin and evolutionary processes acting on emerging pathogens. Sequencing a historic multihost out
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Julia Van Etten @couchmicroscopy.bsky.social · 04/09/2026
Our paper describing two new photosynthetic Paulinella species is out today in JPhycol! This is the kind of work I love to do and even it though took many years to finish, we had a lot of fun stomping around together in the marsh! onlinelibrary.wiley.com/doi/10.1111/... #protistsonsky
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Corrie Moreau @corriemoreau.bsky.social · 03/09/2026
NSF just posted the call for the annual Postdoctoral Research Fellowships in Biology (PRFB). You must propose a project to apply AI to biological research. Deadline is Sep 29, 2026 www.nsf.gov/funding/oppo...
nsf.gov
Postdoctoral Research Fellowships in Biology (PRFB)
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Jeremy Berg @jeremymberg.bsky.social · 02/09/2026
She would have been 78 today but she died in the Challenger disaster 40 years ago.
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George O'Toole (he/him/his) @geiselbiofilm.bsky.social · 30/08/2026
Pls share: We have a new position for an Assistant Professor of Evolutionary Biology at UNLV. tinyurl.com/4uhpav4j
tinyurl.com
Assistant Professor in Evolutionary Biology, School of Life Sciences [R0153361]
The University of Nevada, Las Vegas (UNLV) appreciates your interest in employment. We ask that you keep in mind the following when completing your application: Once you start the application process ...
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Reposted by Julia Van Etten
Darrin T. Schultz @dts.bsky.social · 19/08/2026
Our new paper in Science Advances asks how animals' genomes have changed since their origin from a common ancestor over 600 million years ago, and what patterns in their DNA have arisen in the churn of speciation and extinction. www.science.org/doi/10.1126/...
Five-panel diagram explaining fusion-with-mixing in chromosome evolution. Red and blue represent two different ancestral chromosomes throughout.

A, Fusion-with-mixing: a red chromosome and a blue chromosome fuse into one half-red, half-blue bar. Down the page, successive rows show inversions, drawn as X-shaped crossings between rows, progressively interleaving the two colors until the bottom bar is finely striped. A widening gray wedge labeled Entropy runs alongside an arrow marked Time plus evolution, pointing down.

B, Independent regulation: two separate chromosomes, one red and one blue. In each, a regulatory element, drawn as an oval, acts by an arrow on a gene within its own chromosome only.

C, FWM and novel regulation: on a fused, mixed chromosome, a red gene and a blue gene now sit next to each other across an inversion breakpoint. Red and blue arrows show regulatory elements reaching across it to act on the other chromosome's gene.

D, Regulatory entanglement: an extensively mixed chromosome, finely striped. Below it, a row of alternating red and blue genes is linked by a dense web of crossing curved arrows, so many overlapping regulatory connections that unmixing the chromosome would break them.

E, Emergence of entangled loci: a five-species phylogeny. A red and a blue chromosome fuse at an ancestral node, and helical icons on later branches mark continued mixing. Colored boxes mark four new red-blue regulatory interactions arising after inversions. Species A keeps its two chromosomes separate. In species B through E, the two earliest interactions, cyan boxes 1 and 2, are present in every descendant lineage, while later ones, yellow 3 and magenta 4, appear in fewer.
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Julia Van Etten @couchmicroscopy.bsky.social · 26/08/2026
Some info from Chuck Delwiche on Desmodesmus, our national alga.
youtu.be
National Alga
YouTube video by Charles Francis Delwiche
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Reposted by Julia Van Etten
Joshua Weitz @joshuasweitz.bsky.social · 25/08/2026
NSF just announced its GRFP solicitation due in October - deadline varies by field: www.nsf.gov/funding/oppo... Now for the bad news... * NSF estimates they will issue 1,500 awards, down from 2,500+ last year. * NSF removed STEM Education and Learning Research as a Major Field.
nsf.gov
NSF Graduate Research Fellowship Program (GRFP)
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Sergio Muñoz-Gómez @sergiophyceae.bsky.social · 18/08/2026
A new preprint from the lab! "Green algal symbionts are stably retained and provisioned in the dark despite a clear physiological cost" www.biorxiv.org/content/10.6...
biorxiv.org
Green algal symbionts are stably retained and provisioned in the dark despite a clear physiological cost
Photosymbioses, or associations between heterotrophs and photoautotrophs, are widespread and indispensable in today's ecosystems. The chloroplasts of algae and land plants, which are at the heart of m...
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Aramati Casper @aramaticasper.bsky.social · 13/08/2026
Why is there "no consensus" about sex in biology? Turns out, we're using seven different concepts. In "Evolution, development and the incoherence of sex" we name & elucidate these concepts. With Karen Warkentin and Jay Falk @jjinsing.bsky.social @sicbjournals.bsky.social doi.org/10.1093/icb/...
The cover of the article, in Integrative and Comparative Biology. The image caption is "Examples of seven biological phenomena sometimes called sex and the evolutionary relationships among them. The seven sex concepts are depicted with images: 0) horizontal gene transfer, 1) meiosis and syngamy, 2) anisogamy, 3) the gametes produced by an individual, 4) traits often associated with gamete production, 5) processes that bring gametes in proximity to facilitate syngamy, 6) processes/behaviors/traits derived from sex5.
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Julia Van Etten @couchmicroscopy.bsky.social · 13/08/2026
So we all pay taxes and spending that money on researching cures to diseases is bad and needs to be stopped, but 20 million dollars for electric shock gloves for ICE is good? Got it.
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Gregg Gonsalves @gregggonsalves.bsky.social · 13/08/2026
This week, @maxkozlov.bsky.social wrote a piece on how the NIH is limiting funding on the health effects of public policies. What is striking is that the current NIH director's career was all about the health effects of policies, social & economic conditions. scholar.google.com/citations?hl...
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John F. Allen @profjohnallen.bsky.social · 07/08/2026
Why a Chloroplast Needs Its Own Genome Tethered to the Thylakoid Membrane—Co‐Location for Redox Regulation - Allen - 2026 - BioEssays - Wiley Online Library onlinelibrary.wiley.com/doi/10.1002/...
onlinelibrary.wiley.com
Why a Chloroplast Needs Its Own Genome Tethered to the Thylakoid Membrane—Co‐Location for Redox Regulation
A schematic outline of chloroplast DNA tethered to two stacked thylakoids that contain the components of photosynthetic electron transport. Green shapes represent proteins encoded in chloroplast DNA;...
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NY Times Pitchbot @nytpitchbot.bsky.social · 06/08/2026
Trump has tanked the economy and filled our streets with ICE agents who murder with impunity. But a liberal candidate I've never heard of in a state I've never been too says we should stop celebrating Thanksgiving. I have never felt more politically homeless.
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NPR @npr.org · 02/08/2026
NPR asked an aspiring scientist in Philadelphia to interview an adult who is living his dream about his career in conservation science. n.pr/3TtUaeQ
n.pr
We asked a first grader to interview his hero: A bird scientist
NPR asked an aspiring scientist in Philadelphia to interview an adult who is living his dream about his career in conservation science.
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John Burns @burnsajohn.bsky.social · 30/07/2026
I'm giving a public talk next Wednesday, August 5, on approaches to studying mid-water animals in situ. It will be light on technical details, and more conceptual and a journey to the deep than a regular science talk. Please join if you are interested! #marinelife www.bigelow.org/news/cafe-sc...
A chandelier siphonophore suspended in the deep Atlantic ocean.
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Carl T. Bergstrom @carlbergstrom.com · 25/07/2026
More on the Trump / Kratsios "Golden Age of Science" report, from @theverge.com
theverge.com
The tech-broification of American science has officially begun
Trump’s ‘Golden Age’ of American science starts with dismantling it, while funneling billions into AI. 
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Julia Van Etten @couchmicroscopy.bsky.social · 13/07/2026
Cool video about the nitroplast that’s also a testament to why basic science is important! youtu.be/g9B3gBhcwqM?...
youtu.be
This cell just changed biology
YouTube video by Grist
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Nimblenewt @nimblenewt.bsky.social · 13/07/2026
I went Salish Sea seaweeding for #PhycologyFriday, and saw *so* many nifty species! But I gave myself ID’ers block and hesitated to post in case I made a mistake. But I want to share the beauty! I’ll put tentative ID’s in alt text: corrections welcome since I’m learning🦀Ogden Point, Victoria BC 1/
A great tangle of seaweeds on the pebbly shore facing the Strait of Juan de Fuca. This is on the little alternately sandy and rocky beach between Ogden Point Breakwater and the Dallas Road bluffs, which is Lək̓ʷəŋən (pronounced Lekwungen) traditional territory, next to one of the main ancient village sites.
In the photo, the outlying seaweeds are rockweed (Fucus, like bumpy olive coloured crab claws ), Bull Kelp (smooth blades and the bullwhip strand), Sea Lettuce (bright green), and Turkish Towel (bumpy purple). The one in the middle looking like raised little purple hands is, I *think*, Callophyllis edentata. It has a circular thing on its finger, like a closed anemone except the donut shape has a break in it! Are they eggs? Or complete small organisms? I saw many of these little nodule things, both creamy and bright green, and will post close ups as I carry on the thread.
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Janina Rinke @jannelrinke.bsky.social · 02/07/2026
Excited to share that our paper on Horizontal Gene Transfer is now out in its final form in @gigascience.bsky.social! 🥳 By analysing 163 high-quality ant genomes, we show that HGT from bacteria is widespread across the ants and likely has adaptive functions! doi.org/10.1093/giga... 🐜📸: Alex Wild
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Julia Van Etten @couchmicroscopy.bsky.social · 27/06/2026
This is a cool read.
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Noam Ross @noamross.net · 19/06/2026
NSF's grantmaking is miserly when compared to recent years, but when compared it to the historical record, we see it's a radical break from the long-term consensus of investing in scientific innovation. grant-witness.us/posts/2026-0... #NSF 🧪
grant-witness.us
The NSF is on Track for its Worst Year in Generations – Grant Witness
Throttling of science funding is utterly unprecedented and radical when compared to the past 50 years.
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Maximilian Ganser @mhganser.bsky.social · 18/06/2026
Tiny unicellular #eukaryotes, big #biomaterial inspiration. Excited to share our Nature Communications study showing that tintinnid ciliates build their chemical- and heat-resistant shells from self-assembling proteins we call Tintinnidorins. doi.org/10.1038/s414... #protistsonsky 1/3
Swimming tintinnid ciliate in its transparent showing the shell-material granules containing the Tintinnidorin proteins accumulated around the circular zone of membranelles of the newly developing cell.
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Julia Van Etten @couchmicroscopy.bsky.social · 18/06/2026
I’m sick of hearing about this and being messaged about it but this article is good. Any scientist with even a rudimentary knowledge of algae could fix this problem fairly easily for under $16 million. You can give that money back to the NSF. In fact, you could fund 100 3-year GRFs with $16M.
theatlantic.com
What Color Is the Reflecting Pool? An Investigation.
President Trump wanted an American-flag-blue Reflecting Pool. Instead, he got a swamp.
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Iñaki Ruiz-Trillo @multicellgenome.bsky.social · 09/06/2026
1/10 For decades, cellular aggregation was considered an evolutionary dead end. Cells could come together temporarily. But complex multicellular organisms like animals? Our study, led by JP Gerdt, with Ruibao & @jennahed.bsky.social suggests it may be time to rethink that🧵 #ProtistsOnSKy
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Carl T. Bergstrom @carlbergstrom.com · 06/06/2026
Remember the current NIH director going on about protecting researchers from government censorship? Today his people called the police in to forcibly remove my colleagues from their own society meeting for sharing an editorial published in their flagship journal that was critical of him. Gift link
nytimes.com
Police Remove Diabetes Experts From Conference for Distributing Critique of Trump Administration
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gavin jones @ecologyofgavin.bsky.social · 29/05/2026
The Department of Biology at the University of Iowa is hiring an evolutionary ecologist at the assistant professor level for fall 2027. Come and be my colleague! jobs.uiowa.edu/faculty/view...
jobs.uiowa.edu
Faculty Requisition Details - Jobs@UIOWA: Search and Apply for Jobs at The University of Iowa
Jobs@UIOWA: The official place to search and apply for jobs at The University of Iowa.
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Iñaki Ruiz-Trillo @multicellgenome.bsky.social · 29/05/2026
1/8 Inside your body lies something ancient. Our @pnas.org paper uncovers the deep unicellular prehistory of blood cell types. See paper and video. @ibe-barcelona.bsky.social @icreacommunity.bsky.social @prbb.org @csic.es @csicdivulga.bsky.social pnas.org/doi/10.1073/...
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