Reposted by Aaditya NarasimhanbioRxiv Evolutionary Biology @biorxiv-evobio.bsky.social · 28/09/2026Adaptive excursions across the drift barrier www.biorxiv.org/content/10.64898/20… 022
Reposted by Aaditya NarasimhanPierre de Villemereuil @pdevillemereuil.bsky.social · 28/09/2026With 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.orgQuantitative genetics of lifetime growth curves in a lizardAbstract. 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 NarasimhanbioRxiv Evolutionary Biology @biorxiv-evobio.bsky.social · 11/09/2026The effects of supergene evolution on the structure and stability of the G-matrix www.biorxiv.org/content/10.64898/20… 063
Reposted by Aaditya NarasimhanProceedings of the National Academy of Sciences @pnas.org · 18/09/2026A 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 055
Reposted by Aaditya NarasimhanNew Phytologist @newphyt.bsky.social · 09/09/2026A milkweed flower makes fake figs: brood-site mimicry and mutualism in Heterostemma ficoides Kidyoo et al. nph.onlinelibrary.wiley.com/share/HNYYIN... 03117
Reposted by Aaditya NarasimhanbioRxiv Evolutionary Biology @biorxiv-evobio.bsky.social · 23/08/2026Self-fertilization reverses the direction of selection on recombination www.biorxiv.org/content/10.64898/20… 087
Reposted by Aaditya NarasimhanAaditya Narasimhan @aaditya320.bsky.social · 20/08/2026postdoc 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! #EvoSkyjobs.unibas.chUniversität 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 · 20/08/2026postdoc 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! #EvoSkyjobs.unibas.chUniversität 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 NarasimhanMark Phillips @maphillips.bsky.social · 30/07/2026Recent 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.orgBeyond Fixation: Persistent Genetic Variation Under Intense SelectionAbstract. Understanding how and why genetic variation is maintained under sustained selection remains a central question in evolutionary genetics. Experime 12815
Reposted by Aaditya NarasimhanGraham Coop @gcbias.bsky.social · 12/08/2026Excited 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.orgThe Genome-Wide Effect of Drift and Selection over a Single GenerationThe 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 NarasimhanJeffrey Ross-Ibarra @jrossibarra.bsky.social · 12/08/2026I 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/JPF07777recruit.ucdavis.edu 2127161
Reposted by Aaditya NarasimhanEvolution @journal-evo.bsky.social · 10/08/2026Don'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.comVariation in the genetic architecture of ecologically relevant traits along elevational gradientsAbstract. 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 NarasimhanJessica Hullman @jessicahullman.bsky.social · 11/08/2026Nice 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.comAI-Native PhD StudentsIf you’re a student and just want the tl;dr, feel free to jump to the end. 24312
Reposted by Aaditya NarasimhanbioRxiv Evolutionary Biology @biorxiv-evobio.bsky.social · 09/08/2026Eco-evolutionary feedbacks generate bistability in population persistence under gradual environmental change www.biorxiv.org/content/10.64898/20… 061
Reposted by Aaditya NarasimhanLaura Bertola @lauradbertola.bsky.social · 07/08/2026FRAME: Fine-Resolution Asymmetric Migration Estimation www.nature.com/articles/s41...nature.comFRAME: Fine-Resolution Asymmetric Migration Estimation - Nature CommunicationsUnderstanding 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 NarasimhanbioRxiv Evolutionary Biology @biorxiv-evobio.bsky.social · 06/08/2026Expansion load reduces fitness at the range margin of an invasive plant www.biorxiv.org/content/10.64898/20… 004
Reposted by Aaditya NarasimhanChristian Landry @christianlandry.bsky.social · 04/08/2026Our 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.comThe shape of fitness functions and the distribution of mutational effect sizes jointly limit adaptation by regulatory mutations - Nature Ecology & EvolutionSaturation 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 NarasimhanGenome 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 #PlantSkydoi.orgTracking the Evolutionary Trajectory of a Young Hybrid Plant PathogenAbstract. 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 NarasimhanJeff Groh @jeffgroh.bsky.social · 28/07/2026Avocados 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.orgBalanced polymorphism in a floral transcription factor underlies the ancient rhythm of daily sex alternation in avocado | PNASIn 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 NarasimhanJake Berv @jakeberv.bsky.social · 20/07/2026Happy 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/fuxB1rdcu.beRates of passerine body plan evolution in time and spaceNature 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 NarasimhanGrace Robertson 🏳️⚧️ @graceonfootball.com · 15/07/2026that was... it was significantly more unpleasant an experience than any of the serious dental work i've had recently. 5892
Reposted by Aaditya NarasimhanTomos Potter @tomospotter.bsky.social · 13/07/2026Preprint alert! 🧪 🐟 If you are interested in #LongTermStudies #BalancingSelection #KinCompetition check out our new MS. Mini thread below 🧵: 31912
Reposted by Aaditya NarasimhanbioRxiv Evolutionary Biology @biorxiv-evobio.bsky.social · 04/07/2026Evidence for the 1/e-law predicting optimal timing of reproduction across taxa www.biorxiv.org/content/10.64898/20… 012
Reposted by Aaditya NarasimhanGrace Robertson 🏳️⚧️ @graceonfootball.com · 04/07/2026the game is undefeated 0651
Reposted by Aaditya NarasimhanKatie Abson @katieabson.bsky.social · 30/06/2026Our 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.orgNucleotide diversity is a poor predictor of short-term adaptive potential | PNASThe 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 · 30/06/2026Lots of interest (understandably so) in balancing selection/graph based methods in popgen (S07) #SMBE2026 072
Reposted by Aaditya Narasimhanmoicoll.bsky.social @moicoll.bsky.social · 30/06/2026Interactive schedule (2.0) for SMBE2026! Enjoy the conference #SMBE2026 moicoll.github.io/SMBE2026_sch...moicoll.github.ioSMBE 2026 — Program & Posters 01311
Reposted by Aaditya NarasimhanDarren 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 · 25/06/2026Looking 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 NarasimhanPLOS Biology @plosbiology.org · 19/06/2026How 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 03121
Reposted by Aaditya NarasimhanDavid Tian @david-tian.bsky.social · 11/06/2026New 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.orgLong-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 NarasimhanSeema Sheth @seemasheth.bsky.social · 11/06/2026It 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.orgTwo 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 NarasimhanEvolution Letters @evolletters.bsky.social · 10/06/2026Why 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.socialacademic.oup.comCoevolution of species’ range borders: Interactions between interspecific competition, gene flow, and matching habitat choiceAbstract. Existing theory examining the coevolutionary dynamics of species’ range borders assumes random dispersal, which causes maladaptive gene flow from 14819
Reposted by Aaditya NarasimhanAnna 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.orgInbreeding 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 NarasimhanTakuji Usui | 薄井拓路 @usuitakuji.bsky.social · 04/06/2026Excited 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/3j8s9t8bscience.orgCompetition enables rapid adaptation to a warming range edge in a model plant communityMost 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 NarasimhanZamin Iqbal @zaminiqbal.bsky.social · 25/05/2026This 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.orgResearchers say the Trump administration is finding new ways to punish scienceEven 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 NarasimhanTschopp Lab @tschopplab.bsky.social · 14/05/2026One 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.beAdaptive cellular evolution in the intestine of hyperdiverse cichlid fishesNature - 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 NarasimhanEvolution @journal-evo.bsky.social · 18/05/2026Two 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.comThe long and difficult history of the path between Darwinism and LamarckismEver 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 NarasimhanKevin Bird @stairwaytokevin.bsky.social · 18/05/2026First 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 NarasimhanAbhishek Meena, Ph.D. @abhishek11.bsky.social · 15/05/2026Excited 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/projectsthermalecologyalliance.org 1114
Reposted by Aaditya NarasimhanEcoEvoRxiv @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 NarasimhanAntoine Perrier @perrierecoevo.bsky.social · 07/05/2026New 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 NarasimhanScott P. Egan @scottpegan.bsky.social · 07/05/2026Botanical parasitism of an insect by a parasitic plant: Current Biology www.cell.com/current-biol...cell.comBotanical parasitism of an insect by a parasitic plantEgan 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 NarasimhanBen Allen @evodynamics.bsky.social · 06/05/2026Excited 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.comWhy there are so many definitions of fitness in modelsAbstract. 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 NarasimhanNew Phytologist @newphyt.bsky.social · 30/04/2026New 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 NarasimhanAlexandros Topaloudis @topalwos.bsky.social · 29/04/2026Are 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.orgBenchmarking imputation accuracy in the presence or absence of a reference panelAbstract. 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 NarasimhanBird account @dialecticbio.bsky.social · 29/04/2026I 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.orgNatural Election | Los Angeles Review of BooksKathryn 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 NarasimhanMinas Karamanis @minaskar.bsky.social · 30/03/2026Hey, I wrote a thing about AI in astrophysics ergosphere.blog/posts/the-ma...ergosphere.blogThe 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 NarasimhanDavid Lowry @davidlowry.bsky.social · 24/04/2026Woah www.pnas.org/doi/10.1073/...pnas.orgGenome degradation in plant tissue culture | PNASMany 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