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Samridhi Chaturvedi

@samridhi.bsky.social
632 followers 477 following 79 posts

Evolutionary genomics 🧬, Molecular ecology, 🦋🦋🦋 biology, Assistant Professor, EEB, Tulane University chaturvedi-lab.wp.tulane.edu

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Reposted by Samridhi Chaturvedi
Eric Topol @erictopol.bsky.social · 3h
In the new @science.org special issue on women's health, a 5★ review of menopause hormone therapy to promote healthy aging science.org/doi/10.1126/...
science.org
Reframing menopause and menopause hormone therapy as opportunities for healthy aging
Menopause is an important biological transition with up to 72 symptoms that shapes aging trajectories across organs and encompasses ~40% of the female lifespan. Although menopause awareness is increas...
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Robert Tropek @robtrop.bsky.social · 30/09/2026
New study published in @natecoevo.nature.com ! We assembled the largest global dataset of plant–pollinator networks to ask a simple question: do interactions become more specialised towards the tropics? doi.org/10.1038/s415... Study led by @saileesakhalkar.bsky.social and myself ☺️ 1/8
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Diana Tataru @dianatataru.bsky.social · 26/09/2026
Structural variant characterization is a hot topic in genomics, but the types of data and methods researchers use can yield different results! Check out this preprint we just dropped on inversion detection and characterization in Timema stick insects: www.biorxiv.org/content/10.6...
biorxiv.org
Inversion characterization in Timema stick insects: from local PCA to pangenome approaches
Structural variants (SVs) can strongly influence evolutionary processes by suppressing recombination to create jointly inherited regions and by altering gene expression and the 3D organization of DNA....
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Reposted by Samridhi Chaturvedi
Kelsie Hunnicutt @kelsiehunnicutt.bsky.social · 25/09/2026
My News & Views is out now in @natecoevo.nature.com ! I cover an excellent study by Hosoki et al. on long-term monitoring of hybrid stickleback populations post-tsunami. 🌊🐟 (1/2) Read it here: rdcu.be/MW75PMTbgP1a
rdcu.be
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bioRxiv Evolutionary Biology @biorxiv-evobio.bsky.social · 24/09/2026
Abiotic and biotic ecological factors affect the genomic consequences of plant-butterfly coevolution www.biorxiv.org/content/10.64898/20…
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bioRxiv Evolutionary Biology @biorxiv-evobio.bsky.social · 19/09/2026
This must be the place: deep learning local adaptation www.biorxiv.org/content/10.64898/20…
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Rebecca Tarnopol @tarnopol.bsky.social · 18/09/2026
Our latest work now on bioRxiv! We found evidence for multiple independent HGTs of the anti-parasitoid effector cdtB in drosophilids, including anciently in the last common ancestor of subgenus Drosophila 👀 You can browse our data here: trnpl.github.io/antiparasito...
trnpl.github.io
Drosophila Phylogeny Explorer
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Andrew Hendry @ecoevoevoeco.bsky.social · 15/09/2026
How can you use repeatability to infer LOCAL selection - check out our new paper in Molecular Ecology. "The Spatial and Temporal Repeatability of Genomic Responses to Natural Selection ..." onlinelibrary.wiley.com/doi/10.1111/...
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Inside Higher Ed @insidehighered.com · 15/09/2026
🚨 Breaking News | The Department of Homeland Security’s widely criticized rule limiting how long international students can stay in the country won’t take effect Sept. 15 after a federal judge granted a preliminary injunction in a lawsuit challenging... Read the full story ➡️ bit.ly/4j3rtjs
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Maria Akopyan, PhD @akopyan.bsky.social · 10/09/2026
📣 I'm recruiting PhD students to join the Akopyan Lab at Rice University! If you're passionate about evolutionary genomics, I'd love to hear from you. Details: akopyanlab.org/opportunities Please share widely! 🙏
akopyanlab.org
Opportunities
We are recruiting PhD students in Evolutionary Genomics for Fall 2027 at Rice University!  Projects in the lab include investigating the causes and consequences of recombination rate variation, the...
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Science Magazine @science.org · 10/09/2026
A nanobody antivenom cocktail protected mice against death from Indian cobra and king cobra venom, including when delivered up to 20 minutes after envenoming. Read more in #ScienceTranslationalMedicine: scim.ag/4yvByKx
A photo of a king cobra.
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Sam Yeaman @samyeaman.bsky.social · 08/09/2026
I'm looking to hire a postdoc to work on the RepAdapt + MacroMar projects, analysing genomic data from >130 species of plants, animals, and fungi (VCFs are processed, ready to go). Lots of potential for creativity and collaboration! yeamanlab.weebly.com/uploads/5/7/...
Picture shows fireweed in foreground and Mt. Lougheed in background
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Samridhi Chaturvedi @samridhi.bsky.social · 05/09/2026
New work from postdoc days with Dr. Robin Hopkins working with Phlox speciation genomics.
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ybrandvain.bsky.social @ybrandvain.bsky.social · 04/09/2026
I'm excited to release the newest version of my free applied biostats textbook. It's tidyverse style, clarkia inspired and loads of fun Im putting this down until the end of the semester, when I'll add and polish additional chapters, but the 1st 21 are pretty solid yanivjb.github.io/biostats-book
yanivjb.github.io
Applied Biostatistics
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Samridhi Chaturvedi @samridhi.bsky.social · 01/09/2026
Excited to see this special issue on Genomics of Speciation now out in Molecular Ecology: onlinelibrary.wiley.com/doi/toc/10.1...
onlinelibrary.wiley.com
Special Issue: Genomics of Speciation: Molecular Ecology
Molecular Ecology is an international journal for research using molecular genetic techniques to address questions in ecology, evolution, behavior and conservation.
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Shayla Salzman @shaylasalzman.bsky.social · 28/08/2026
🚨We've got two funded PhD positions investigating #plant-insect and #predator-prey ecology under climate change! Joint project between myself and Bill Snyder at UGA. Send us your CV and interests: wesnyder@uga.edu shayla.salzman@uga.edu Come join us in beautiful Athens GA!
Sign that says Go Dawgs
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Samridhi Chaturvedi @samridhi.bsky.social · 27/08/2026
Starting the semester by submitting the lab’s first empirical paper led by a PhD student (excitttiiing) and 4th (!!!!) resubmission of an NSF grant (kill me now). Being New PI is such a bag of mixed feelings…add to that the spicyness of being an immigrant…ooof
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Reposted by Samridhi Chaturvedi
Francesco Cicconardi @fcicconardi.bsky.social · 24/08/2026
It must be Christmas and nobody told me! Here's a beautiful work by Angelo, one of Riccardo Papa’s PhD students. It was a real pleasure to be part of it and to contribute, even in a small way. www.science.org/doi/10.1126/...
science.org
Multilocus basis of incipient reproductive isolation in hybridizing populations is revealed by pangenomic and epigenetic divergence
Incipient reproductive isolation in the presence of gene flow has traditionally been attributed to a small number of major-effect loci under strong selection. Here, using the Heliconius erato adaptive...
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Molecular Biology and Evolution @molbioevol.bsky.social · 24/08/2026
Pinheiro de Castro et al. trace the evolution of cyanogenic glucosides biosynthesis in Heliconiini butterflies, providing evidence for the genetic basis of this phenotype and empirical evidence for plasticity-first evolution. 🔗 academic.oup.com/mbe/article/... #societyjournal #evobio #molbio
MBE | Plasticity-first evolution via CYP405 loss shaped chemical defenses in butterflies
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Molecular Ecology @molecology.bsky.social · 24/08/2026
🚨Call for papers for a MEC special issue🚨 From Genotype to Phenotype: where Molecular Ecology meets Quantitative genetics This special issue explores the role and application of quantitative genetic studies using by high-resolution molecular markers in wild populations. 1/3
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Genome Biology and Evolution @genomebiolevol.bsky.social · 24/08/2026
A central challenge in evobio is understanding how genetic variants influence biological functions and, ultimately, phenotypic diversity and adaptation. In light of the growing interest, GBE has prepared a virtual collection on Functional Genomics 🔗 academic.oup.com/gbe/pages/fu... #societyjournal
GBE Virtual Collection | Functional Genomics
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E. Anne Chambers @chamberea.bsky.social · 14/08/2026
We're hiring! The Chambers Lab is recruiting grad students interested in landsacpe & conservation genomics or species delimitation of reptiles & amphibians. Find more info here (or reach out with questions!): chamberslab.org/opportunitie...
chamberslab.org
opportunities – Chambers Lab
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Moi Expósito-Alonso (MOILAB) @mexpositoalonso.bsky.social · 14/08/2026
Congratulations to @dortizba.bsky.social on a new collaborative Tansley Review in @newphyt.bsky.social! Predictive evolutionary genomics: principles, validation, and practice doi.org/10.1111/nph....
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Mahul Chakraborty @mahulchak.bsky.social · 07/08/2026
More broadly, the study illustrates how long-read sequencing and pangenome approaches can reveal functionally important variants that are missed by traditional reference-based analyses. The paper is now out in @genomeresearch.bsky.social genome.cshlp.org/content/36/7...
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Azwad Iqbal @azwadiqbal.bsky.social · 08/08/2026
BLink-seq is out! Linked-read sequencing that brings phased whole-genome data to non-model species at population scale. We show it phases haplotypes and detects SVs, revealing previously undocumented structural complexity in an adaptive Atlantic silverside inversion. www.biorxiv.org/content/10.6...
biorxiv.org
BLink-seq delivers population-scale haplotypes without long reads: a scalable framework for non-model genomics
Information about segregating haplotypes and structural variation (SV) can be extremely rich for a variety of applications in population genomics but remains largely inaccessible for many non-model sp...
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Shawan Chowdhury @shawan-chowdhury.bsky.social · 06/08/2026
Our new Nature Eco Evo paper documents range shifts in 1,758 butterfly species across 105 countries, primarily due to climate change. 🦋80% expanded 🦋27% contracted 🦋22% shifted elevation 🦋342 showed multiple shift types. doi.org/10.1038/s415... @monashbiol.bsky.social @monashscience.bsky.social
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EVOCHANGE lab @evochange.bsky.social · 05/08/2026
📢New paper in @journal-evo.bsky.social! This work expands our understanding of seasonal camouflage polymorphism, dissecting the genetic basis of winter colour variation (white and brown morphs) in the long-tailed weasel (Neogale frenata). Paper here ⬇️ doi.org/10.1093/evol... 1/5
doi.org
Museum genomics links MC1R alleles to adaptive winter coat color polymorphism in the long-tailed weasel
Abstract. Understanding the architecture of biological adaptations is a major endeavor of evolutionary biology. Using Natural History collections, we study
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bioRxiv Evolutionary Biology @biorxiv-evobio.bsky.social · 05/08/2026
A transposon origin of large tandem repeats in the butterfly Papilio bianor www.biorxiv.org/content/10.64898/20…
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Guardian Environment @environment.theguardian.com · 05/08/2026
Butterflies around the world are changing habitats - and experts say it’s ‘signalling a warning’
theguardian.com
Butterflies around the world are changing habitats - and experts say it’s ‘signalling a warning’
New research shows early-warning species is on the move, expanding or contracting geographic range and changing altitude
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Genetics Society of America @genetics-gsa.bsky.social · 31/07/2026
🐛 Caterpillars of Lonomia #moths envenomate people in Latin America every year. In the July issue of #G3journal, @diler.bsky.social, @nkwhiteman.bsky.social present a genome assembly of Lonomia casanarensis that will help improve antivenoms and develop novel bioactive compounds. 🔗 buff.ly/Mqa35Tv
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Luke Anderson @dialektical.bsky.social · 27/07/2026
Excited to share a preprint of my 3rd dissertation chapter! We evaluated how a potential genomic measure of sexual selection strength, the ratio of genetic diversity on the Z chromosome vs the autosomes, varies across selective and biogeographic contexts in #manakins. Check it out! bit.ly/4fY43de
biorxiv.org
Can the Z:A ratio serve as a genomic index of sexual selection? An assessment across space and time in a genus of lekking birds
Understanding the role of sexual selection in shaping evolutionary trajectories is a key goal of biology, and thus developing a genomic measure of sexual selection strength is desirable. In systems wi...
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Alex Gunderson @agunderson.bsky.social · 23/07/2026
New preprint led by former PhD student Wayne Wang, who found that neither male temperature during spermatogenesis nor post-ejaculate sperm heat exposure change sperm cell heat tolerance in an Anolis lizard www.biorxiv.org/content/10.6...
biorxiv.org
No adaptive plasticity in the heat tolerance of lizard sperm
1. Adaptive phenotypic plasticity can help organisms cope with global warming by increasing their heat tolerance, yet most research has focused on whole-organism traits. Much less is known about therm...
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Esme Ashe-Jepson @esme-ashe.bsky.social · 21/07/2026
New paper out! Limited evidence that butterflies are capable of changing their thermoregulatory performance or thermal tolerance in response to local climatic conditions. Instead, poorer thermoregulators have shown stronger upwards elevational range shifts in response to climate change rdcu.be/fuSJE
rdcu.be
Butterflies with low thermoregulatory capacity show greatest upwards range shifts along an elevational gradient
Communications Biology - Lack of variation in thermoregulatory capacity or thermal tolerance in butterflies across an elevational gradient suggests limited adaptive capacity. Poorer...
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bioRxiv Evolutionary Biology @biorxiv-evobio.bsky.social · 19/07/2026
From diet to defense: serpin duplication and gene-expression evolution as putative contributors to poison-frog alkaloid sequestration www.biorxiv.org/content/10.64898/20…
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Evolution Letters @evolletters.bsky.social · 14/07/2026
Why do different butterfly species evolve the same shimmering blue wings? Morpho butterflies repeatedly converge on iridescence in sympatry, suggesting predators can drive the evolution of shared warning signals. doi.org/10.1093/evle... Image credit: Wikimedia
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Society for the Study of Evolution @sse-evolution.bsky.social · 09/07/2026
We received almost 300 applications to our Graduate Research Excellence Grants this year. We expect to fund around 50 proposals. Help us fund an additional 10 by making a tax-deductible donation to our GREG GoFundMe campaign! www.gofundme.com/f/support-st...
gofundme.com
Donate to Support Students on their Scientific Research Journey!, organized by SSE Communications
The Graduate Research Excellence Grants are awarded by the So… SSE Communications needs your support for Support Students on their Scientific Research Journey!
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bioRxiv Evolutionary Biology @biorxiv-evobio.bsky.social · 04/07/2026
Ecological genomics of a novel host-parasitoid arms-race in nature www.biorxiv.org/content/10.64898/20…
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bioRxiv Evolutionary Biology @biorxiv-evobio.bsky.social · 02/07/2026
Large phenological advances and delays over 124 years of climate change alter co-flowering among North American Viola www.biorxiv.org/content/10.64898/20…
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Samridhi Chaturvedi @samridhi.bsky.social · 30/06/2026
Germany vs Paraguay omg
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Jeffrey Ross-Ibarra @jrossibarra.bsky.social · 26/06/2026
After reading @blekhernia.bsky.social's great blog post on lab AI usage policy (blekhman.substack.com/p/you-need-t...), we made one in lab meeting. Feedback welcome! rilab.ucdavis.edu/ai_expectati...
rilab.ucdavis.edu
Ross-Ibarra Lab Policy on AI Usage
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Noah Whiteman @nkwhiteman.bsky.social · 25/06/2026
So excited to announce our search for 4 postdocs (funded by the Simons Foundation) who will use genomics to "test how ecological interactions, natural selection, natural enemies, hybridization & environmental gradients shape...tropical tree communities" in Panama: stri.si.edu/story/bci-ev... ...1
stri.si.edu
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Jill M. Love, PhD 🏳️‍🌈 @jillmlove.bsky.social · 20/06/2026
🎉 PUBLISHED!!!! Out now in @newphyt.bsky.social 🎉 We found positive selection on leaf shape plasticity in a Monkeyflower species. This experiment used two big field transplants, greenhouse, AND growth chamber work. It was hard, but awesome. With @ferrisifolius.bsky.social doi.org/10.1111/nph....
doi.org
Phenotypic plasticity is broadly adaptive across an elevation gradient in the Cutleaf Monkeyflower
Leaf shape plasticity expression is variable in Mimulus laciniatus.
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Ryan N. Felice @rnf.bsky.social · 19/06/2026
New paper out today! @sternarchella.bsky.social and I review how modularity and integration influence adaptive radiations and diversification. Read it here: rdcu.be/fpcSX
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Swallowtail and Birdwing Butterfly Trust @sbbtrust.bsky.social · 19/06/2026
A Whole genome study of the British Swallowtail (Papilio machaon britannicus) has been completed for the first time. @norfolknats.bsky.social @savebutterflies.bsky.social @norfolkbutterflies.bsky.social @patrickbarkham.bsky.social doi.org/10.1111/icad...
doi.org
Endemic but not eroded: Genomic distinctiveness and conservation genomics of the British swallowtail butterfly (Papilio machaon britannicus)
Through whole-genome sequencing of P. machaon populations across Europe, we demonstrate that P. m. britannicus forms a genetically distinct and isolated lineage. Demographic modelling revealed weak ...
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bioRxiv Evolutionary Biology @biorxiv-evobio.bsky.social · 06/06/2026
Independent major-effect loci and limited trait associations characterise warning colour variation across sexes and life stages in the wood tiger moth (Arctia plantaginis) www.biorxiv.org/content/10.64898/20…
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Science Magazine @science.org · 07/06/2026
When caterpillars attack, the common bean plant relies on a receptor in its leaves to sound a chemical rallying cry that recruits predatory wasps, a new #ScienceAdvances study finds. scim.ag/434rXN5
scim.ag
A plant immune receptor mediates tritrophic interactions by linking caterpillar detection to predator recruitment
A plant receptor detects caterpillar attack and triggers emission of chemical cues to attract predatory wasps.
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John Stinchcombe @johnstinchcombe.bsky.social · 07/06/2026
Why are leaves the shape that they are? What controls intraspecific, genetic variation in leaf shape? New from my lab, in collaboration with many others, led by PhD student Amanda Peake: mapping the leaf shape polymorphism in Ipomoea hederacea.
Homozygous recessive entire leaf of Ivyleaf morning gloryHomozygous dominant, lobed leaf of Ivyleaf morning glory
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Santiago Claramunt @sclaramunt.bsky.social · 06/06/2026
I am recruiting a #postdoc to work on assembling and analyzing #genomes of the amazing Furnariidae. Let’s unlock the secret behind their #evolution. The official application portal will be available soon at www.uno.edu/careers. Feel free to contact me for details at sclaramu@uno.edu
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Science Magazine @science.org · 04/06/2026
Four decades of satellite observations reveal that mangrove forests globally have recently shifted from net loss to net gain, with reduced degradation and continued regrowth and expansion, suggesting early signs of conservation success. Learn more this week in Science: scim.ag/4vMGzx9
A young mangrove tree stands at the front line of the shifting boundary between land and sea in Florida Bay, Florida, USA.
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Harmit Singh Malik @harmitmalik.bsky.social · 04/06/2026
There are two types of people in the world: those who discovered Persepolis and were richer for the experience, and those that still have to. RIP Marjane Satrapi. www.lemonde.fr/en/obituarie...
lemonde.fr
Marjane Satrapi, author of 'Persepolis,' dies at 56
The French-Iranian artist and film director 'died of sadness a little over a year after the death of Mattias Ripa, her husband and the love of her life,' people close to her said.
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