Israt Jahan
@jahanisrat.bsky.social
📤 809
📥 1092
📝 55
Multicellular and symbiotic evolutionary biologist. Postdoc at University of Oxford. PhD from WUSTL
pinned post!
Our paper testing the coordination hypothesis is now out in Evolution Letters:
academic.oup.com/evlett/artic...
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Testing the coordination hypothesis: incompatibilities in aggregative development of an experimentally evolved social amoeba
Abstract. Multicellular organisms that form by aggregation of cells arguably do not achieve high levels of complexity. Conflict among the cells is a widely
https://academic.oup.com/evlett/article/doi/10.1093/evlett/qrae063/7905644
about 1 year ago
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Will Ratcliff
2 days ago
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...
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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...
https://www.biorxiv.org/content/10.64898/2025.12.08.693006v1
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Jeremy B. Yoder 🧬📊🌿🏳️🌈🖖🏻
2 days ago
It's in print! My opinionated dive into the definition of "coevolution" is officially out in the December issue of
@journal-evo.bsky.social
doi.org/10.1093/evol...
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Don't ask “when is it coevolution?”—ask “how?”
Abstract. Coevolution has come to be widely understood as specific, simultaneous, reciprocal adaptation by pairs of interacting species. This strict-sense
https://doi.org/10.1093/evolut/qpaf194
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Ian Henderson
7 days ago
Interesting study suggesting that nucleus, cytoskeleton, and endomembranes preceded acquisition of mitochondria, during eukaryogenesis
www.nature.com/articles/s41...
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Dated gene duplications elucidate the evolutionary assembly of eukaryotes - Nature
Analysis of eukaryotic gene sequences using a relaxed molecular clock methodology indicate that eukaryotes emerged 3.0–2.25 billion years ago as a result of mitochondrial endosymbiosis with complex ar...
https://www.nature.com/articles/s41586-025-09808-z
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Juliet Coates
7 days ago
More goings on in eukaryotic ancestors, this time from
@phil-donoghue.bsky.social
and friends. The data is coming thick and fast!
#actin
#nucleus
#LECA
#asgard
#mitochondria
#phylogeny
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Luís M. Silva
7 days ago
Thrilled to share my first preprint in my 2nd evo-passion: senescence and aging. Here, we used experimental evolution to test the
#redox
theory of
#aging
under
#parasitism
. Guess what: it is considerably different from what is expected 🤓 a thread 1/5 👇
#EvoSky
#MicroSky
#Aedes
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Testing the redox theory of aging under parasitism
The redox theory of aging proposes that an oxidative imbalance, possibly amplified by infection, drives senescence. We experimentally evolved mosquitoes under early or late reproduction with or withou...
https://www.biorxiv.org/content/10.64898/2025.12.03.692220v1
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Asher Leeks
7 days ago
It was great to write a brief commentary with
@sociovirology.bsky.social
on
@nanamikubota.bsky.social
and
@vscooper.micropopbio.org
's recent discovery of cheat-driven cycles in Pseudomonas (
www.cell.com/current-biol...
- amazing example of the tragedy of the commons! 🧪
#socialviruses
#evosky
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Phage–bacteria dynamics: The tragedy of the commons at hyperspeed
A recent study found that apparently stable coexistence between a clinically important pathogen, Pseudomonas aeruginosa, and its integrated prophages can break down, setting off an evolutionary cycle ...
https://www.cell.com/current-biology/abstract/S0960-9822(25)01402-2
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Israt Jahan
Molecular Biology and Evolution
9 days ago
Macit,
@socialinsectlab.bsky.social
investigated selection in response to climate and a geographic mosaic of coevolution between two ant species, a social parasite and its host. 🔗
doi.org/10.1093/molbev/msaf293
#evobio
#molbio
#coevolution
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Israt Jahan
Lucas Santana Souza
7 days ago
youtu.be/YdVzLeTlgBE
Endosymbiosis webinar series Our Guest: Gaurav S. Athreya 2025.12.04 The Evolution of Dependence and Cohesion in Incipient Endosymbioses
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The Evolution of Dependence and Cohesion in Incipient Endosymbioses - Gaurav S. Athreya
YouTube video by Lucas Genoma
https://youtu.be/YdVzLeTlgBE
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Israt Jahan
Evolution Letters
7 days ago
Check out our cover article by
@timjanicke.bsky.social
and colleagues about the role of sexual selection in animal speciation.
academic.oup.com/evlett/artic...
. The beautiful illustration is by Katharina Bóth.
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Hannah Reich
8 days ago
10 weeks of
#MarineSymbiosis
paper discussions & the verdict on their favorites is in! I had a blast piloting an upper-level course this semester & had them vote on superlatives to celebrate their hard work.
#newPI
#SymbiosisSky
Mini blog here:
phycosymbiosis.weebly.com/updates/mari...
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Israt Jahan
Ming Tommy Tang
25 days ago
1/ Mapping quantitative data to color
www.nature.com/articles/nm...
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Mapping quantitative data to color
Nature Methods - Data structure informs choice of color maps.
https://www.nature.com/articles/nmeth.2134
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Israt Jahan
Benito Wainwright
12 days ago
Very happy to see our opinion article out in
@cp-trendsecolevo.bsky.social
today. 🥳 We ask whether sexual signals can influence the evolutionary trajectory of naturally selected adaptations, such as protective colouration, for better or for worse 🧐 1/n
doi.org/10.1016/j.tr...
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Katharina Hoff
14 days ago
We all wish peer review to be rapid and professional: doesn’t always go like that. But I am relieved to finally see Helixer by
@alisandra-denton.bsky.social
and team published in Nature Method. Congratulations!
www.nature.com/articles/s41...
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Helixer: ab initio prediction of primary eukaryotic gene models combining deep learning and a hidden Markov model - Nature Methods
By leveraging both deep learning and hidden Markov models, Helixer achieves broad taxonomic coverage for ab initio gene annotation of eukaryotic genomes from fungi, plants, vertebrates and invertebrat...
https://www.nature.com/articles/s41592-025-02939-1
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Israt Jahan
Andrew Heiss
13 days ago
Finally got around to switching my in-browser
#rstats
R Primers website to use the newer better-supported
#QuartoPub
Live extension, which will now let me eventually add nicer inline feedback someday - Free primers site:
r-primers.andrewheiss.com
- Extension:
r-wasm.github.io/quarto-live/
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Important!
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13 days ago
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Israt Jahan
Michael Friendly
13 days ago
#rstats
It is with profound sadness I heard that my long-time friend and colleague, John Fox passed away this week. He was the author of {car}, {effects}, {Rcmdr}, ... and numerous influential books. I will miss him greatly.
www.john-fox.ca
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John Fox: Books and Software
https://www.john-fox.ca/
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Daniel Bolnick
16 days ago
Did you receive a Student Research Award from the American Society of Naturalists
@asn-amnat.bsky.social
? We'd love to hear what you achieved with those awards (or, please share with someone who had one), even going back many years:
docs.google.com/forms/d/e/1F...
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American Society of Naturalists Student Research Award Outcomes
The American Society of Naturalists (ASN) gives out student research awards (generally $2000 each) to support activities of our student members. We request that Student Research Award recipients provi...
https://docs.google.com/forms/d/e/1FAIpQLScAIz3LWJxdkk-7wr1JZjwPlGjNIyf3nlso5aGXTR0GyIKFLA/viewform?usp=header
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Israt Jahan
Polina Tikanova
17 days ago
Happy to share that my PhD project is finally published!🪱✨ Selfish genes are found across the tree of life. They can disrupt inheritance patterns and at the same time act as units for molecular innovation. Here we tried to answer one big question: how do selfish genes emerge in the first place?
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Flo Camus
16 days ago
We are looking for PhD applicants! ‼️Interested in genomics, ecophysiology and adaptation? Look at our TREES DLA project:
www.trees-dla.ac.uk/projects/und...
We also offer more projects via ROUTE2. Get in touch and let’s have a chat 💬
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Understanding the role of metabolism in adaptation & evolution | TREES DLA
In an era of rapid environmental change, understanding how species adapt to shifting conditions is critical for conservation biology. At the heart of adaptation lies metabolism, the process that fuels...
https://www.trees-dla.ac.uk/projects/understanding-role-metabolism-adaptation-evolution
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Israt Jahan
Adria LeBoeuf
17 days ago
Our preprint
doi.org/10.1101/2025...
getting media coverage (!)
add a skeleton here at some point
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Israt Jahan
Lucas Santana Souza
about 1 month ago
Paradoxical role of new endosymbiotic associations: they facilitate the emergence of new partnerships, but inhibit deeper integration between hosts and guests (by favoring uncoordinated reproduction over synchronized ones). That is, easy come, easy go.
#Endosymbiosis
doi.org/10.1101/2025...
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Israt Jahan
Alejandro Fábregas-Tejeda
4 months ago
With great joy—and a touch of nervousness—I’m thrilled to share that my first academic monograph will be published by
@mitpress.bsky.social
in May 2026! It examines the organism–environment relationship in biology from an integrated
#HPS
perspective:
mitpress.mit.edu/978026205282...
#evosky
#philsky
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The Organism-Environment Pairing
In this first systematic book-length examination of the organism-environment relationship in the life sciences, Alejandro Fábregas-Tejeda addresses a crucia...
https://mitpress.mit.edu/9780262052825/the-organism-environment-pairing/
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Current Biology
21 days ago
Check out our latest issue where we interview Cassandra Extavour, who studies the evolution of the genetic mechanisms employed during early animal embryogenesis to specify cell fate, development, and differentiation at Harvard University.
www.cell.com/current-biol...
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Q & A
Interview with Cassandra Extavour, who studies the evolution of the genetic mechanisms employed during early animal embryogenesis to specify cell fate, development, and differentiation at Harvard Univ...
https://www.cell.com/current-biology/fulltext/S0960-9822(25)01339-9
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Cameron Thrash
20 days ago
Rubisco is slow across the tree of life
www.pnas.org/doi/abs/10.1...
#jcampubs
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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...
https://www.pnas.org/doi/abs/10.1073/pnas.2501433122?af=R
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Israt Jahan
Dan Baldassarre
20 days ago
BINGO! Arnold 2010 JWM
wildlife.onlinelibrary.wiley.com/doi/10.1111/...
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https://wildlife.onlinelibrary.wiley.com/doi/10.1111/j.1937-2817.2010.tb01236.x
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Israt Jahan
Maxim Raginsky
over 2 years ago
the evolutionary epistemology stack
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Israt Jahan
Daan Speth
20 days ago
Our paper describing the GlobDB is now published in
@bioinfoadv.bsky.social
doi.org/10.1093/bioa...
The GlobDB is the largest species dereplicated genome database currently available, containing 306,260 species representatives. More information on
globdb.org
1/5 🖥️🧬🦠
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GlobDB: a comprehensive species-dereplicated microbial genome resource
AbstractMotivation. Over the past years, substantial numbers of microbial species’ genomes have been deposited outside of conventional INSDC databases.Resu
https://doi.org/10.1093/bioadv/vbaf280
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Michael Baym
21 days ago
Hot off the press! Our latest paper led by
@fernpizza.bsky.social
, understanding how plasmids evolve inside cells. These small, self-replicating DNA circles live inside bacteria and carry antibiotic resistance genes, but also compete with one another to replicate. 1/
www.science.org/doi/10.1126/...
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Intracellular competition shapes plasmid population dynamics
From populations of multicellular organisms to selfish genetic elements, conflicts between levels of biological organization are central to evolution. Plasmids are extrachromosomal, self-replicating g...
https://www.science.org/doi/10.1126/science.adx0665
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Alex Wild
24 days ago
My favorite David Attenborough story- heard secondhand- is that he got up to do everyone’s dishes at a remote field station where the BBC was shooting one of his projects. Because he’s that kind of person. Which I think about when reading what other rich people I see on the tv are up to.
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Chris Smith
4 months ago
Hello bluesky community! I'm hiring a postdoc to do machine learning in population genetics. Starting to build up a lab at Indiana University Bloomington where I just started a faculty position. Apply with the below link:
indiana.peopleadmin.com/postings/30325
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Postdoctoral Research Fellow
The department of Biology is a large, unified department with strong undergraduate degrees, nationally-ranked graduate programs, and world-class research spanning the breadth of biological questions a...
https://indiana.peopleadmin.com/postings/30325
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EMBO
27 days ago
Apply now for EMBO Workshop "Evolving together: From
#genomics
to biological interactions" in Taipei, Taiwan, 24–27 Apr 2026. Abstract submission/Registration deadline: 20 Jan/28 Feb 2026
meetings.embo.org/event/26-bio...
#EMBOEvoGenBio
#GeneSky
#EvoSky
#EcoSky
#EMBOevents
🧪
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Evolving together: from genomics to biological interactions
Genomic and evolutionary research has transformed our understanding of how biological interactions shape life’s diversity. From symbiosis and host–pathogen relationships to competition, cooperation, …
https://meetings.embo.org/event/26-bio-interactions
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Israt Jahan
Mark A. Hanson
26 days ago
WE ARE RECRUITING PHD STUDENTS!!! We have three(!) funded PhD studentships advertising presently. If any of these are of interest, please reach out! Thread below with links to more information on each project.
#Drosophila
#Evolution
#Immunity
#SelfishGene
#Aphids
Thread with links below 🧵 1/4
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Rob Waterhouse
26 days ago
TE dynamics across high-quality
#genome
assemblies of 75 bee species to quantify their diversity in an evolutionary context
link.springer.com/article/10.1...
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A comparative analysis of transposable element diversity and evolution across 75 bee genomes - BMC Genomics
Transposable elements (TEs) are repetitive DNA sequences that can alter their position and abundance within genomes. While TEs are known to have various impacts on genome structure and function, our u...
https://link.springer.com/article/10.1186/s12864-025-12190-9
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Israt Jahan
phy_papers
27 days ago
Comparative Analysis of Evolutionary Distances Using the Genus Mycobacterium
https://pubmed.ncbi.nlm.nih.gov/41226510/
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Israt Jahan
EcoEvoRxiv
27 days ago
Dispersion tests in generalised linear mixed-effects models - a methods comparison and practical guide
doi.org/10.32942/X23...
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Israt Jahan
Chris Smith
27 days ago
Excited to share our review on alternative splicing evolution, with
@peterinnes1.bsky.social
and Nolan Kane!
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Israt Jahan
Colin Allen
28 days ago
Our special issue on Evolutionary Functions of Consciousness, coedited with Tecumseh Fitch and Adina Roskies, now online
royalsocietypublishing.org/toc/rstb/202...
Contributions by (1) Irina Mikhalevich; (2) Eva Jablonka and Simona Ginsburg; (3) Nicholas Humphrey; (cont'd)
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Philosophical Transactions of the Royal Society B: Biological Sciences: Vol 380, No 1939
https://royalsocietypublishing.org/toc/rstb/2025/380/1939
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Israt Jahan
Cameron Thrash
27 days ago
Conserved genetic markers reveal widespread diatom sexual reproduction in the global ocean
www.nature.com/articles/s41...
#jcampubs
🌊
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Conserved genetic markers reveal widespread diatom sexual reproduction in the global ocean - Nature Communications
Diatoms dominate the oceans, yet sexual reproduction - key to bloom dynamics and species evolvability - is rarely observed. Using a lab-to-field approach, this study presents conserved markers applica...
https://www.nature.com/articles/s41467-025-65296-9
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Israt Jahan
Taylor priest
27 days ago
The core genomic backbone of bacteria is not necessarily resilient to gene flow! A new study shows that introgression impacts, on average, 2% of the core genes of species -
www.nature.com/articles/s41...
#microevo
#microeco
#evolution
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Introgression impacts the evolution of bacteria, but species borders are rarely fuzzy - Nature Communications
It is commonly thought that bacterial species borders tend to be fuzzy, due to frequent exchange of DNA. Here, Diop et al. quantify the patterns of gene flow between core genomes across 50 major bacte...
https://www.nature.com/articles/s41467-025-64947-1
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Israt Jahan
Marta Álvarez-Presas
28 days ago
Happy to share Jialin's first publication. She did a great job exploring the transition to land in animals. Co-supervised by the great Jordi Paps and me and in collaboration with Davide Pisani and
@phil-donoghue.bsky.social
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Wen-Cong Huang
28 days ago
#Archaea
,
#DPANN
,
#phylogenetic_reconciliation
New preprint online!
www.biorxiv.org/content/10.1...
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Phylogenetic reconciliation supports a methanogenic ancestor of the Archaea and a derived origin for host-associated lineages
The phylogeny of the Archaea continues to be revisited and revised as new groups are discovered and phylogenetic methods improve, but key questions about their early evolution remain. It has been sugg...
https://www.biorxiv.org/content/10.1101/2025.11.11.687807v1
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BehavEcolPapers
28 days ago
A practice-oriented guide to statistical inference in linear modeling for non-normal or heteroskedastic error distributions BehResM
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A practice-oriented guide to statistical inference in linear modeling for non-normal or heteroskedastic error distributions
Selecting an appropriate statistical method is a challenge frequently encountered by applied researchers, especially if assumptions for classical, parametric approaches are violated. To provide some guidelines and support, we compared classical hypothesis tests with their typical distributional assumptions of normality and homoskedasticity with common and easily accessible alternative inference methods (HC3, HC4, and six bootstrap methods) in the framework of ordinary least squares (OLS) regression. The method’s performance was assessed for four different regression models with varying levels of non-normality and heteroskedasticity of errors, and for five different sample sizes ranging from 25 to 500 cases. For each scenario, 10,000 samples of observations were generated. Type I error and coverage rates, power, and standard error bias were examined to assess the methods’ performance. No method considered here performed satisfactorily on all accounts. Using HC3 or HC4 standard errors, or a wild bootstrap procedure with percentile confidence intervals, could yield reliable results in many, but not all, scenarios. We suppose that, in the case of assumption violations, researchers might refer to a method that performed best in a scenario most similar to their data situation. To aid the selection of an appropriate method, we provide tables comparing relative performances in all considered scenarios.
http://dlvr.it/TPFkdD
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Cameron Thrash
28 days ago
Augmenting microbial phylogenomic signal with tailored marker gene sets
www.nature.com/articles/s41...
#jcampubs
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Augmenting microbial phylogenomic signal with tailored marker gene sets - Nature Communications
Marker genes used in microbial phylogenomics are limited to fixed gene sets selected from complete genomes. TMarSel is a flexible yet robust method for selecting any number of markers from genomes or ...
https://www.nature.com/articles/s41467-025-64881-2
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Israt Jahan
🧬Jacob L Steenwyk
28 days ago
And a great perspective by Peter and Anthony!
www.science.org/doi/10.1126/...
bsky.app/profile/jlst...
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🧬Jacob L Steenwyk
28 days ago
NEW pub in
@science.org
🥳 Is it sponges (panels A & B) or comb jellies (C & D) that root the animal tree of life? For over 15 years,
#phylogenomic
studies have been divided. We provide new evidence suggesting that... 🔗:
www.science.org/doi/10.1126/...
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Israt Jahan
Universität Konstanz
29 days ago
Collective behaviour researcher
@icouzin.bsky.social
from
#UniKonstanz
and
@mpi-animalbehav.bsky.social
was recognized - once again - as “Global Highly Cited Researcher” 2025. The pioneer in collective behaviour research is named among the world’s most influential scientists.
t1p.de/7g6kl
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Pawel Burkhardt
about 2 months ago
First neurons didn’t appear overnight. We trace their roots to ancient secretory cells - showing how lifestyle & behavior shaped the evolution of first synapses.🧠🌊
#Evolution
#Neuroscience
Our latest in
@natrevneuro.nature.com
Link:
rdcu.be/eMX3E
@jeffcolgren.bsky.social
@msarscentre.bsky.social
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The evolutionary origins of synaptic proteins and their changing roles in different organisms across evolution
Nature Reviews Neuroscience - Recent studies have shed further light on the evolutionary origins of chemical synapses, In this Review, Colgren and Burkhardt explore how ancient proteins were...
https://rdcu.be/eMX3E
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Harmit Singh Malik
30 days ago
Are you an early-stage graduate student (2nd or 3rd year) or early-stage postdoc based in the US or Canada, working primarily in Drosophila? Would you like to help improve the experience of all trainees working in Drosophila research? If so, read on. (Please repost to reach a broad audience.)
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The Wesner Lab
about 1 month ago
Postdoc position in Freshwater Ecology starting Spring 2026:
yourfuture.sdbor.edu/postings/45968
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Postdoctoral Researcher, Biology
Postdoctoral Researcher: A Postdoctoral Research Associate position is available at the University of South Dakota in Dr. Jeff Wesner’s lab in the Department of Biology. The NSF-funded project will ex...
https://yourfuture.sdbor.edu/postings/45968
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Ana Serra Silva
about 1 month ago
Interested in the
@evojlinnsoc.bsky.social
special issue on phylogenomic discordance?
tinyurl.com/v2eces3s
🧪 Three more summaries added below! We'll return when more articles come live. Again, all and any oversimplications are entirely my fault!
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