Sign in

Aaditya Narasimhan

@aaditya320.bsky.social
1.2K followers 701 following 61 posts

Postdoc @ DEE, University of Lausanne Evolutionary ecology | Past: PhD@UniversitätBasel

PostsRepliesMedia
Reposted by Aaditya Narasimhan
bioRxiv Evolutionary Biology @biorxiv-evobio.bsky.social · 28/09/2026
Adaptive excursions across the drift barrier www.biorxiv.org/content/10.64898/20…
022
Reposted by Aaditya Narasimhan
Pierre de Villemereuil @pdevillemereuil.bsky.social · 28/09/2026
With fieldwork, I didn't get to advertise our (not so now) new paper on the quantitative genetics of growth in the 🦎 in @journal-evo.bsky.social: dx.doi.org/10.1093/evol... It's an exciting paper paper in which we disentangle what it means to treat the whole growth curve as a function-valued trait!
dx.doi.org
Quantitative genetics of lifetime growth curves in a lizard
Abstract. Body size is an iconic trait in quantitative genetics. For species with indeterminate growth however, growth curve, a function-valued trait, is t
23521
Reposted by Aaditya Narasimhan
bioRxiv Evolutionary Biology @biorxiv-evobio.bsky.social · 11/09/2026
The effects of supergene evolution on the structure and stability of the G-matrix www.biorxiv.org/content/10.64898/20…
063
Reposted by Aaditya Narasimhan
Proceedings of the National Academy of Sciences @pnas.org · 18/09/2026
A global rise in meat consumption is increasing livestock manure. But that manure could feed black soldier fly larvae, which are currently used at industrial scale for livestock feed protein—resulting in a resilient, circular system. In PNAS: ow.ly/p0Qb50ZP8TG
Black soldier fly larvae and frass remaining after the bioconversion of livestock manure.
CREDIT: Zhijian Zhang.
055
Reposted by Aaditya Narasimhan
New Phytologist @newphyt.bsky.social · 09/09/2026
A milkweed flower makes fake figs: brood-site mimicry and mutualism in Heterostemma ficoides Kidyoo et al. nph.onlinelibrary.wiley.com/share/HNYYIN...
Overall appearance of Heterostemma ficoides and Ficus heterophylla.
03117
Reposted by Aaditya Narasimhan
bioRxiv Evolutionary Biology @biorxiv-evobio.bsky.social · 23/08/2026
Self-fertilization reverses the direction of selection on recombination www.biorxiv.org/content/10.64898/20…
087
Reposted by Aaditya Narasimhan
Aaditya Narasimhan @aaditya320.bsky.social · 20/08/2026
postdoc position at the University of Basel in my old group on selection and adaptation across species' elevational ranges. there are 2 datasets available: 1) a climate chamber expt on 4 Brassicaceae herbs, 2) from a field transplant expt at different elevations. please share! #EvoSky
jobs.unibas.ch
Universität Basel: Postdoc fellowship in Phenotypic Plasticity & Selection Analysis (100%)
The group of Plant Ecology and Evolution at the University of Basel, Switzerland (https://duw.unibas.ch/en/ecoevo/), is looking for a postdoc to lead the analyses and publishing of data collected in a...
065
Aaditya Narasimhan @aaditya320.bsky.social · 20/08/2026
postdoc position at the University of Basel in my old group on selection and adaptation across species' elevational ranges. there are 2 datasets available: 1) a climate chamber expt on 4 Brassicaceae herbs, 2) from a field transplant expt at different elevations. please share! #EvoSky
jobs.unibas.ch
Universität Basel: Postdoc fellowship in Phenotypic Plasticity & Selection Analysis (100%)
The group of Plant Ecology and Evolution at the University of Basel, Switzerland (https://duw.unibas.ch/en/ecoevo/), is looking for a postdoc to lead the analyses and publishing of data collected in a...
065
Reposted by Aaditya Narasimhan
Mark Phillips @maphillips.bsky.social · 30/07/2026
Recent work from the lab. Even after hundreds of generations of intense directional selection at relatively small Ne, substantial genetic variation persists, and can be rapidly redeployed when the direction of selection reverses. Results are suggestive of balancing selection. doi.org/10.1093/molb...
doi.org
Beyond Fixation: Persistent Genetic Variation Under Intense Selection
Abstract. Understanding how and why genetic variation is maintained under sustained selection remains a central question in evolutionary genetics. Experime
12815
Reposted by Aaditya Narasimhan
Graham Coop @gcbias.bsky.social · 12/08/2026
Excited for @gabrielesgarlata.bsky.social’s new preprint on the Genome-Wide Effect of Drift and Selection over a Single Generation 1/n www.biorxiv.org/content/10.6...
biorxiv.org
The Genome-Wide Effect of Drift and Selection over a Single Generation
The relative importance of genetic drift versus selection to evolutionary change has long been debated. This debate has mainly focused over long-time-scales (e.g. hundreds of thousands of generations)...
211562
Reposted by Aaditya Narasimhan
Jeffrey Ross-Ibarra @jrossibarra.bsky.social · 12/08/2026
I am excited to announce a job for an Asst Prof in Plant Evolution in the dept. of Evolution and Ecology at @ucdavis.bsky.social. We're looking broadly, from macro (speciation, comparative genomics, evo-devo) to micro (pop biology, adaptive evolution, evo-eco). recruit.ucdavis.edu/JPF07777
recruit.ucdavis.edu
2127161
Reposted by Aaditya Narasimhan
Evolution @journal-evo.bsky.social · 10/08/2026
Don't miss this issue's Editor's Choice article: "Variation in the genetic architecture of ecologically relevant traits along elevational gradients" Aaditya Narasimhan & Yvonne Willi @aaditya320.bsky.social academic.oup.com/evolut/artic...
academic.oup.com
Variation in the genetic architecture of ecologically relevant traits along elevational gradients
Abstract. Species are confined within spatial boundaries that are likely shaped by multiple factors. One understudied factor is the genetic non-independenc
142
Reposted by Aaditya Narasimhan
Jessica Hullman @jessicahullman.bsky.social · 11/08/2026
Nice post from @eytan.adar.prof on the cargo cult science of "AI-native" PhD students, who come in super productive because they perform all major parts of research with genAI. No one needs all these quick papers, and they can really hurt students down the road. eytanadar.medium.com/ai-native-ph...
eytanadar.medium.com
AI-Native PhD Students
If you’re a student and just want the tl;dr, feel free to jump to the end.
24312
Reposted by Aaditya Narasimhan
bioRxiv Evolutionary Biology @biorxiv-evobio.bsky.social · 09/08/2026
Eco-evolutionary feedbacks generate bistability in population persistence under gradual environmental change www.biorxiv.org/content/10.64898/20…
061
Reposted by Aaditya Narasimhan
Laura Bertola @lauradbertola.bsky.social · 07/08/2026
FRAME: Fine-Resolution Asymmetric Migration Estimation www.nature.com/articles/s41...
nature.com
FRAME: Fine-Resolution Asymmetric Migration Estimation - Nature Communications
Understanding spatially varying patterns of asymmetric gene flow is essential for deciphering complex population structures. This study introduces FRAME, a penalized likelihood framework for estimatin...
066
Reposted by Aaditya Narasimhan
bioRxiv Evolutionary Biology @biorxiv-evobio.bsky.social · 06/08/2026
Expansion load reduces fitness at the range margin of an invasive plant www.biorxiv.org/content/10.64898/20…
004
Reposted by Aaditya Narasimhan
Christian Landry @christianlandry.bsky.social · 04/08/2026
Our latest contribution on #regulatoryevolution in which we show that the shape of fitness functions and the distribution of mutational effect sizes jointly limit adaptation by regulatory mutations. Led by @simonaube.bsky.social www.nature.com/articles/s41...
nature.com
The shape of fitness functions and the distribution of mutational effect sizes jointly limit adaptation by regulatory mutations - Nature Ecology & Evolution
Saturation mutagenesis of the FCY1 promoter in budding yeast shows that adaptation to 5-fluorocytosine is not accessible through single cis-regulatory mutations, despite large mutational effects on pr...
14822
Reposted by Aaditya Narasimhan
Genome Biology and Evolution @genomebiolevol.bsky.social · 29/07/2026
@jigisha1.bsky.social @fmenardo.bsky.social et al. highlight the role of ecological isolation in preventing gene flow between triticale powdery mildew and its parental lineages. 🔗 doi.org/10.1093/gbe/evag172 #societyjournal #PlantSky
doi.org
Tracking the Evolutionary Trajectory of a Young Hybrid Plant Pathogen
Abstract. A common mechanism by which emerging plant pathogens gain the ability to infect new hosts is hybridization. Despite its widespread occurrence, th
045
Reposted by Aaditya Narasimhan
Jeff Groh @jeffgroh.bsky.social · 28/07/2026
Avocados come in 2 varieties - A-types start each day female and switch to male midday. B-types do the reverse. In work just published from the last chapter of my PhD, we show this system evolved 40+million yrs ago and is regulated by alleles of 1 transcription factor www.pnas.org/doi/10.1073/...
pnas.org
Balanced polymorphism in a floral transcription factor underlies the ancient rhythm of daily sex alternation in avocado | PNAS
In avocado and certain wild relatives in Lauraceae, a highly synchronized daily rhythm of floral sex timing promotes cross-pollination between two ...
22721274
Reposted by Aaditya Narasimhan
Jake Berv @jakeberv.bsky.social · 20/07/2026
Happy to share this 'capstone' project from my time as a postdoc @umich.edu, where we show that hierarchically nested bursts of body-shape evolution may underlie much of perching-bird diversification over ~50 million years. Free access link here: rdcu.be/fuxB1
rdcu.be
Rates of passerine body plan evolution in time and space
Nature Ecology & Evolution - A reconstruction of the evolutionary history of passerine body plans over the past ~50 Myr shows rare bursts of phenotypic innovation near the origin of major...
314165
Reposted by Aaditya Narasimhan
Grace Robertson 🏳️‍⚧️ @graceonfootball.com · 15/07/2026
that was... it was significantly more unpleasant an experience than any of the serious dental work i've had recently.
5892
Reposted by Aaditya Narasimhan
Tomos Potter @tomospotter.bsky.social · 13/07/2026
Preprint alert! 🧪 🐟 If you are interested in #LongTermStudies #BalancingSelection #KinCompetition check out our new MS. Mini thread below 🧵:
31912
Reposted by Aaditya Narasimhan
bioRxiv Evolutionary Biology @biorxiv-evobio.bsky.social · 04/07/2026
Evidence for the 1/e-law predicting optimal timing of reproduction across taxa www.biorxiv.org/content/10.64898/20…
012
Reposted by Aaditya Narasimhan
Grace Robertson 🏳️‍⚧️ @graceonfootball.com · 04/07/2026
the game is undefeated
0651
Reposted by Aaditya Narasimhan
Katie Abson @katieabson.bsky.social · 30/06/2026
Our paper is out! 📣 we find that molecular measures of genetic variation do not predict heritable genetic variation across species - important implications for the application of genomic data for conservation! www.pnas.org/doi/10.1073/...
pnas.org
Nucleotide diversity is a poor predictor of short-term adaptive potential | PNAS
The capacity to adapt is essential for a population to avoid extinction in a changing world and is recognized as a global conservation priority. Ad...
110167
Aaditya Narasimhan @aaditya320.bsky.social · 30/06/2026
Lots of interest (understandably so) in balancing selection/graph based methods in popgen (S07) #SMBE2026
072
Reposted by Aaditya Narasimhan
moicoll.bsky.social @moicoll.bsky.social · 30/06/2026
Interactive schedule (2.0) for SMBE2026! Enjoy the conference #SMBE2026 moicoll.github.io/SMBE2026_sch...
moicoll.github.io
SMBE 2026 — Program & Posters
01311
Reposted by Aaditya Narasimhan
Darren Obbard @darrenobbard.bsky.social · 27/06/2026
#SMBE #SMBE2026 Public Service announcement: If you want people to be able to find you in the app: (1) Click on the 'menu' lines (top right), (2) then click on "Privacy & Settings" and (3) *then* scroll to the bottom and click 'update'. This was not obvious to me.
2115
Aaditya Narasimhan @aaditya320.bsky.social · 25/06/2026
Looking forward to #SMBE2026, my first SMBE meeting! I will present a poster on the range expansion of an annual plant and its consequences, in Session A (no.218 in Arkaden 8). Come by if you want to chat about species ranges and adaptation! Also a welcome escape from the heat here in Lausanne!🥵🌡️
182
Reposted by Aaditya Narasimhan
PLOS Biology @plosbiology.org · 19/06/2026
How do species differ in their ability to #adapt to environmental change? This study by Lillith Zijmers, Adam Eyre-Walker &co estimates #evolvability from over 170 multicellular species, revealing that #plants exhibit greater adaptive potential than animals. 🧪#AcademicSky plos.io/4vk2TON
The predicted evolvability from the authors' model for a linear, morphological trait estimated from a wild population for each species, plotted across the phylogeny with their 95% credible intervals. Evolvability estimates for plants are higher than for other groups.
03121
Reposted by Aaditya Narasimhan
David Tian @david-tian.bsky.social · 11/06/2026
New preprint from the last portion of my PhD! Despite low masked load, we found evidence for strong inbreeding depression in Devils Hole pupfish. The reason? A recessive lethal haplotype that causes a heart defect among developing embryos. www.biorxiv.org/content/10.6...
biorxiv.org
Long-term small effective population size, inbreeding, and a recessive lethal haplotype drive premature death in the endangered Devils Hole pupfish (Cyprinodon diabolis)
As anthropogenic habitat fragmentation and population decline accelerate globally, growing numbers of species face compounding demographic and genetic threats to long-term survival. Many populations a...
14521
Reposted by Aaditya Narasimhan
Seema Sheth @seemasheth.bsky.social · 11/06/2026
It was fun to work on this meta-analysis of resurrection studies involving plants with Lillie Pennington, Steven Franks, Jill Anderson, and @elenahamann.bsky.social! doi.org/10.1002/ajb2...
doi.org
Two decades of resurrection studies: What have we learned about contemporary evolution of plant species?
Premise Global climate change has altered the eco-evolutionary trajectories of plant species, leading to observed shifts in phenotypes, such as earlier flowering. However, disentangling the contribu...
22914
Reposted by Aaditya Narasimhan
Evolution Letters @evolletters.bsky.social · 10/06/2026
Why do species' ranges stop where they do? New theory shows that matching habitat choice can sharpen range boundaries and reinforce limits imposed by competition academic.oup.com/evlett/advan... By Shirani and @benjaminfreeman.bsky.social
academic.oup.com
Coevolution of species’ range borders: Interactions between interspecific competition, gene flow, and matching habitat choice
Abstract. Existing theory examining the coevolutionary dynamics of species’ range borders assumes random dispersal, which causes maladaptive gene flow from
14819
Reposted by Aaditya Narasimhan
Anna Hewett @annamhew.bsky.social · 10/06/2026
📣 New paper out in ProcB📣 ... and we're on the cover! (Perks of having a beautiful study species) Find it here: royalsocietypublishing.org/rspb/article...
royalsocietypublishing.org
Inbreeding depression in morphological and growth traits of wild barn owls (Tyto alba)
Abstract. Despite its detrimental effects, inbreeding depression in wild populations is relatively under-explored. Here, we use whole-genome sequence data
1218
Reposted by Aaditya Narasimhan
Takuji Usui | 薄井拓路 @usuitakuji.bsky.social · 04/06/2026
Excited to share our new paper in which we test how competition alters adaptation at a warming range edge @science.org We find that competition can increase adaptation to warming when there is a shared evolutionary response to both biotic and abiotic drivers of selection: tinyurl.com/3j8s9t8b
science.org
Competition enables rapid adaptation to a warming range edge in a model plant community
Most predictions of whether populations will adapt to warming range edges ignore species interactions. We experimentally tested whether range-edge populations can adapt to warming within a competitive...
49837
Reposted by Aaditya Narasimhan
Zamin Iqbal @zaminiqbal.bsky.social · 25/05/2026
This is awful to hear, describing how Sean Eddy (HMMER, infernal, pfam, rfam) has been defunded. The letter said his work "had been determined to be of absolutely no value to the US taxpayer, and therefore it was being specifically terminated," www.npr.org/2026/05/21/n...
npr.org
Researchers say the Trump administration is finding new ways to punish science
Even with federal grants largely restored, scientists say the Trump administration is still preventing those funds from reaching them. The consequences, they say, are already becoming clear.
7144112
Reposted by Aaditya Narasimhan
Tschopp Lab @tschopplab.bsky.social · 14/05/2026
One of my dream projects, ever since joining here in Basel, out now in @nature.com : single-cells 🤝 eco-morphological proxies rdcu.be/fiyso How cells and tissues adapt to dietary niches... Thanks and congrats to Antoine, Walter, and all the other co-authors for this great collaboration!! 🙏🥳
rdcu.be
Adaptive cellular evolution in the intestine of hyperdiverse cichlid fishes
Nature - Single-cell transcriptomics combined with morphological and ecological data show that the rapid evolutionary radiation of cichlid fishes in Lake Tanganyika was accompanied by dietary...
38532
Reposted by Aaditya Narasimhan
Evolution @journal-evo.bsky.social · 18/05/2026
Two Book Reviews this issue: "The long and difficult history of the path between Darwinism and Lamarckism" by Günter P Wagner academic.oup.com/evolut/artic... "Evolution of adaptation’s evil Doppelgänger" by Erik I Svensson academic.oup.com/evolut/artic...
academic.oup.com
The long and difficult history of the path between Darwinism and Lamarckism
Ever since the articulation of a coherent theory of evolution, alternatives to the Darwinian narrative have been proposed. The most widely known, perhaps,
12314
Reposted by Aaditya Narasimhan
Kevin Bird @stairwaytokevin.bsky.social · 18/05/2026
First real post on the new blog! If you follow human genetics, you've likely of "missing heritability". If you look at twins to estimate heritability, you get values much larger than what molecular genomic methods produce. IQ, for example, goes from 50-80% heritability to 10-15%. Which is right?
512650
Reposted by Aaditya Narasimhan
Abhishek Meena, Ph.D. @abhishek11.bsky.social · 15/05/2026
Excited to share our global collaborative project: “Ontogenetic Thermal Fertility Limits” 🌍🔥🦋🪰🪲🪳🐞 We’re bringing together researchers to understand how temperature affects fertility across life stages in a warming world. Explore the project & get involved: www.thermalecologyalliance.org/projects
thermalecologyalliance.org
1114
Reposted by Aaditya Narasimhan
EcoEvoRxiv @ecoevorxiv.bsky.social · 12/05/2026
"Sexually antagonistic selection: a review of the theory and its implications" doi.org/10.32942/X28M22
01613
Reposted by Aaditya Narasimhan
Antoine Perrier @perrierecoevo.bsky.social · 07/05/2026
New paper out in Evolution Letters! @evolletters.bsky.social We explore the legacy of past warming at the rear edge of Campanula americana. Spoiler alert: we did not find higher drift load as often expected at the rear edge, but strong local adaptation! doi.org/10.1093/evle...
0126
Reposted by Aaditya Narasimhan
Scott P. Egan @scottpegan.bsky.social · 07/05/2026
Botanical parasitism of an insect by a parasitic plant: Current Biology www.cell.com/current-biol...
cell.com
Botanical parasitism of an insect by a parasitic plant
Egan et al. report the discovery of a new trophic interaction in nature whereby a parasitic plant attacks multiple species of insects that manipulate plant tissue when the two co-occur on a shared pri...
811257
Reposted by Aaditya Narasimhan
Ben Allen @evodynamics.bsky.social · 06/05/2026
Excited that this has officially come out! Smith et al. (including @joannamasel.bsky.social ): "Why are there so many definitions of fitness in models?" academic.oup.com/genetics/adv...
academic.oup.com
Why there are so many definitions of fitness in models
Abstract. Evolutionary “fitness” is operationalized in many different ways in models. Its role is to quantify that which is favored by natural selection. G
13112
Reposted by Aaditya Narasimhan
New Phytologist @newphyt.bsky.social · 30/04/2026
New Phytologist next generation scientists is coming to India! 📅 1–4 December 2026 📍 IISER Pune, India This event is exclusively for early career researchers in #PlantScience. Apply to attend by 20 May 👉 www.newphytologist.org/events/2026-...
078
Reposted by Aaditya Narasimhan
Alexandros Topaloudis @topalwos.bsky.social · 29/04/2026
Are you looking to sequence a bunch of samples from a wild population in low-coverage but don't have a reference panel? You might be surprised how well it can work. See for yourself in our new benchmark study: doi.org/10.1093/molb...
doi.org
Benchmarking imputation accuracy in the presence or absence of a reference panel
Abstract. Whole genome sequencing (WGS) of a large number of samples is costly. Solutions include targeting a proportion of the genome (eg SNP arrays) or l
285
Reposted by Aaditya Narasimhan
Bird account @dialecticbio.bsky.social · 29/04/2026
I implore everyone to read this brilliant book review of Kathryn Paige Harden new book on the genetics of criminality. It cuts right through the bullshit to state plainly what Harden's project really is: eugenics bullshit and grifting lareviewofbooks.org/article/orig...
lareviewofbooks.org
Natural Election | Los Angeles Review of Books
Kathryn Paige Harden’s new book offers a defense of a kind of Scientific Calvinism that converges with the eugenicist ideals of the contemporary Far Right.
29033
Reposted by Aaditya Narasimhan
Minas Karamanis @minaskar.bsky.social · 30/03/2026
Hey, I wrote a thing about AI in astrophysics ergosphere.blog/posts/the-ma...
ergosphere.blog
The machines are fine. I'm worried about us.
On AI agents, grunt work, and the part of science that isn't replaceable.
1101782531
Reposted by Aaditya Narasimhan
David Lowry @davidlowry.bsky.social · 24/04/2026
Woah www.pnas.org/doi/10.1073/...
pnas.org
Genome degradation in plant tissue culture | PNAS
Many plants, unlike most animals, can reproduce as clones [D. Kester, HortScience 18, 831–837 (1983), 10.21273/hortsci.18.6.831]. Cloning plants is...
06341