Krish Sanghvi
@krishsanghvi11.bsky.social
Post doc- sexual selection, life history
Pinned
Krish Sanghvi
@krishsanghvi11.bsky.social
· Jun 27
Diagnosing confounded Bateman gradients
Abstract. The Bateman gradient is a fundamental metric of sexual selection, often interpreted as the fitness advantage individuals gain by increasing their
academic.oup.com
How to interpret sexual selection using Bateman gradients? When are these not informative & how should researchers identify, deal with confounded gradients? We simulate anisogamy & sperm competition to provide a guide for using Bateman gradients. Out in Evolution
academic.oup.com/evolut/advan...
academic.oup.com/evolut/advan...
Reposted by Krish Sanghvi
A while ago @caritalindstedt.bsky.social asked me “would you puke to save the group?” Well not me personally, there's real science about the evolution of cooperation here. With the help of talented student @abhay-gupta.bsky.social, we now have answers! royalsocietypublishing.org/doi/epdf/10....
Sex-biased cooperation among immature peers: it matters who helps whom
royalsocietypublishing.org
November 26, 2025 at 7:00 AM
A while ago @caritalindstedt.bsky.social asked me “would you puke to save the group?” Well not me personally, there's real science about the evolution of cooperation here. With the help of talented student @abhay-gupta.bsky.social, we now have answers! royalsocietypublishing.org/doi/epdf/10....
Reposted by Krish Sanghvi
Del Basto & co show that using brown fat to generate extra body heat has helped some mammals conquer the globe, but birds have had to come up with other strategies while marsupials are stuck where the climate doesn't get so chilly
journals.biologists.com/jeb/article/...
journals.biologists.com/jeb/article/...
November 26, 2025 at 9:49 AM
Del Basto & co show that using brown fat to generate extra body heat has helped some mammals conquer the globe, but birds have had to come up with other strategies while marsupials are stuck where the climate doesn't get so chilly
journals.biologists.com/jeb/article/...
journals.biologists.com/jeb/article/...
Reposted by Krish Sanghvi
Life history and infection susceptibility parameters of Drosophila species reared on a common diet https://www.biorxiv.org/content/10.1101/2025.11.25.690557v1
November 26, 2025 at 11:31 AM
Life history and infection susceptibility parameters of Drosophila species reared on a common diet https://www.biorxiv.org/content/10.1101/2025.11.25.690557v1
Reposted by Krish Sanghvi
The Everlasting Ovary: Decoding the Mechanisms of Lifelong Oogenesis in the Naked Mole-Rat https://pubmed.ncbi.nlm.nih.gov/41273388/ #EvoDevo
November 26, 2025 at 1:00 PM
The Everlasting Ovary: Decoding the Mechanisms of Lifelong Oogenesis in the Naked Mole-Rat https://pubmed.ncbi.nlm.nih.gov/41273388/ #EvoDevo
Reposted by Krish Sanghvi
Pigeons may be able to sense magnetic fields via electric currents in their inner ears. https://scim.ag/4p1a4rU
Pigeons sense Earth’s magnetic field in an entirely new way
Specialized hair cells pick electric currents induced by magnetism
scim.ag
November 26, 2025 at 2:30 PM
Pigeons may be able to sense magnetic fields via electric currents in their inner ears. https://scim.ag/4p1a4rU
Reposted by Krish Sanghvi
This hairdo doesn't just help male pheasants woo females--it also obscures their vision, making them more vulnerable to predators. Fun story at @science.org
Love practically makes these birds go blind
Unusually obstructive plumage compromises the vision of two types of pheasants—a first in birds
www.science.org
November 26, 2025 at 2:16 PM
This hairdo doesn't just help male pheasants woo females--it also obscures their vision, making them more vulnerable to predators. Fun story at @science.org
Reposted by Krish Sanghvi
Thrilled to share our new paper!
With @tomtom-auer.bsky.social team, we asked how #evolution reshapes what animals #eat to match their ecological niches. Using pan-neuronal Ca2+ imaging, we show that the changes are in how the brain processes #taste.
Link @nature.com: www.nature.com/articles/s41...
With @tomtom-auer.bsky.social team, we asked how #evolution reshapes what animals #eat to match their ecological niches. Using pan-neuronal Ca2+ imaging, we show that the changes are in how the brain processes #taste.
Link @nature.com: www.nature.com/articles/s41...
Evolution of taste processing shifts dietary preference - Nature
Calcium imaging of taste neurons and the ventral brain provides insight into evolutionary divergence of food choice in Drosophila species, supporting a role of sensorimotor processing in addition to p...
www.nature.com
November 26, 2025 at 4:33 PM
Thrilled to share our new paper!
With @tomtom-auer.bsky.social team, we asked how #evolution reshapes what animals #eat to match their ecological niches. Using pan-neuronal Ca2+ imaging, we show that the changes are in how the brain processes #taste.
Link @nature.com: www.nature.com/articles/s41...
With @tomtom-auer.bsky.social team, we asked how #evolution reshapes what animals #eat to match their ecological niches. Using pan-neuronal Ca2+ imaging, we show that the changes are in how the brain processes #taste.
Link @nature.com: www.nature.com/articles/s41...
Reposted by Krish Sanghvi
Check out this nice Digest in @journal-evo.bsky.social by Pedram Samani about our EM study of sperm cell gigantism! digest = doi.org/10.1093/evol... original study = doi.org/10.1093/evol...
Digest: Subcellular reallocation and the evolution of anisogamy in nematodes
Abstract. Why has sperm gigantism evolved, and how do subcellular allocations scale with size? Schalkowski & Cutter (2025) addressed these questions wi
doi.org
November 25, 2025 at 3:02 PM
Check out this nice Digest in @journal-evo.bsky.social by Pedram Samani about our EM study of sperm cell gigantism! digest = doi.org/10.1093/evol... original study = doi.org/10.1093/evol...
Reposted by Krish Sanghvi
The last work of my PhD is finally out: www.pnas.org/doi/10.1073/...! This work is about accurately estimating branch length in the Ancestral Recombination Graph (ARG), which is achieved by a really simple framework with minimal assumptions. (1/n)
PNAS
Proceedings of the National Academy of Sciences (PNAS), a peer reviewed journal of the National Academy of Sciences (NAS) - an authoritative source of high-impact, original research that broadly spans...
www.pnas.org
November 25, 2025 at 8:27 PM
The last work of my PhD is finally out: www.pnas.org/doi/10.1073/...! This work is about accurately estimating branch length in the Ancestral Recombination Graph (ARG), which is achieved by a really simple framework with minimal assumptions. (1/n)
Reposted by Krish Sanghvi
Wondering if insects feel pain? Here's our critique of work that looked at this in bees. We were unconvinced of the evidence, and built a model to think through these issues.
Their response is published alongside and we'll have a response to that out soon.
www.sciencedirect.com/science/arti...
Their response is published alongside and we'll have a response to that out soon.
www.sciencedirect.com/science/arti...
Motivational trade-offs as evidence for sentience in bees: a critique
www.sciencedirect.com
November 25, 2025 at 5:59 PM
Wondering if insects feel pain? Here's our critique of work that looked at this in bees. We were unconvinced of the evidence, and built a model to think through these issues.
Their response is published alongside and we'll have a response to that out soon.
www.sciencedirect.com/science/arti...
Their response is published alongside and we'll have a response to that out soon.
www.sciencedirect.com/science/arti...
Reposted by Krish Sanghvi
Long-term calorie restriction may slow brain aging by supporting healthier metabolism and myelin maintenance in brain cells, suggesting dietary habits can influence the trajectory of brain health. doi.org/hbcpcp
Long-term calorie restriction may slow normal brain aging
As the brain ages, cells in the central nervous system experience metabolic dysfunction and increased oxidative damage.
medicalxpress.com
November 25, 2025 at 11:50 PM
Long-term calorie restriction may slow brain aging by supporting healthier metabolism and myelin maintenance in brain cells, suggesting dietary habits can influence the trajectory of brain health. doi.org/hbcpcp
Reposted by Krish Sanghvi
Transgenerational plasticity affects fitness and mediates local adaptation https://www.biorxiv.org/content/10.1101/2025.11.23.690023v1
November 26, 2025 at 2:31 AM
Transgenerational plasticity affects fitness and mediates local adaptation https://www.biorxiv.org/content/10.1101/2025.11.23.690023v1
Reposted by Krish Sanghvi
Genetic and environmental interactions outweigh mitonuclear coevolution for complex traits in Drosophila https://www.biorxiv.org/content/10.1101/2025.11.24.689096v1
November 26, 2025 at 5:32 AM
Genetic and environmental interactions outweigh mitonuclear coevolution for complex traits in Drosophila https://www.biorxiv.org/content/10.1101/2025.11.24.689096v1
Reposted by Krish Sanghvi
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?
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?
Recurrent evolution of selfishness from an essential tRNA synthetase in Caenorhabditis tropicalis 🧪
www.nature.com/articles/s41...
www.nature.com/articles/s41...
Recurrent evolution of selfishness from an essential tRNA synthetase in Caenorhabditis tropicalis - Nature Ecology & Evolution
In Caenorhabditis tropicalis, three toxin–antidote elements arose via gene duplication from the essential tRNA-synthetase subunit FARS-3. The ancestral antidote probably acquired affinity for FARS-3, ...
www.nature.com
November 24, 2025 at 9:10 PM
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?
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?
Reposted by Krish Sanghvi
Behavioural ecology in the 21st century..... www.nature.com/articles/s41... @asgriffin.bsky.social
Behavioural ecology in the twenty-first century - Nature Ecology & Evolution
This Perspective discusses how the field of behavioural ecology has contributed to fundamental science and tackling global challenges, ranging from understanding how natural selection leads to adaptat...
www.nature.com
November 25, 2025 at 11:15 AM
Behavioural ecology in the 21st century..... www.nature.com/articles/s41... @asgriffin.bsky.social
Reposted by Krish Sanghvi
Why is altruism more common in nature than spite? This new paper gives a general mathematical explanation: the degree of negative assortment that can be achieved is constrained in a way that positive assortment is not, particularly in unbalanced populations.
www.sciencedirect.com/science/arti...
www.sciencedirect.com/science/arti...
November 25, 2025 at 6:47 AM
Why is altruism more common in nature than spite? This new paper gives a general mathematical explanation: the degree of negative assortment that can be achieved is constrained in a way that positive assortment is not, particularly in unbalanced populations.
www.sciencedirect.com/science/arti...
www.sciencedirect.com/science/arti...
Reposted by Krish Sanghvi
🪱 Selfish genes are everywhere and drive some of biology’s biggest innovations (CRISPR, antibody recombination, epigenetics). Yet almost no one asks the obvious question: how does a selfish gene begin? Our new manuscript uncovers how selfishness can emerge directly from the host genome.
November 24, 2025 at 1:03 PM
🪱 Selfish genes are everywhere and drive some of biology’s biggest innovations (CRISPR, antibody recombination, epigenetics). Yet almost no one asks the obvious question: how does a selfish gene begin? Our new manuscript uncovers how selfishness can emerge directly from the host genome.
Reposted by Krish Sanghvi
Our preprint doi.org/10.1101/2025... getting media coverage (!)
November 24, 2025 at 11:16 PM
Our preprint doi.org/10.1101/2025... getting media coverage (!)
Reposted by Krish Sanghvi
Reposted by Krish Sanghvi
Our new collaborative work led by @taliamycota.bsky.social
Jiajun Cui & Emma Caullireau between my lab @ucllifesciences.bsky.social @cloeucl.bsky.social & the Karasov Lab (tkarasovlab.org) @uofubiology.bsky.social
and collaborators: @plantricia.bsky.social et al.
tinyurl.com/5yx2wmz5
(1/n)
Jiajun Cui & Emma Caullireau between my lab @ucllifesciences.bsky.social @cloeucl.bsky.social & the Karasov Lab (tkarasovlab.org) @uofubiology.bsky.social
and collaborators: @plantricia.bsky.social et al.
tinyurl.com/5yx2wmz5
(1/n)
November 18, 2025 at 8:41 AM
Our new collaborative work led by @taliamycota.bsky.social
Jiajun Cui & Emma Caullireau between my lab @ucllifesciences.bsky.social @cloeucl.bsky.social & the Karasov Lab (tkarasovlab.org) @uofubiology.bsky.social
and collaborators: @plantricia.bsky.social et al.
tinyurl.com/5yx2wmz5
(1/n)
Jiajun Cui & Emma Caullireau between my lab @ucllifesciences.bsky.social @cloeucl.bsky.social & the Karasov Lab (tkarasovlab.org) @uofubiology.bsky.social
and collaborators: @plantricia.bsky.social et al.
tinyurl.com/5yx2wmz5
(1/n)
Reposted by Krish Sanghvi
Povilus et al. examined DNA methylation and genetic imprinting in water lily species, finding that maternal gene expression and parent-specific DNA methylation in the endosperm likely represent the ancestral condition of seed development.
🔗 doi.org/10.1093/molbev/msaf271
#evobio #molbio #PlantSky
🔗 doi.org/10.1093/molbev/msaf271
#evobio #molbio #PlantSky
November 24, 2025 at 9:56 AM
Povilus et al. examined DNA methylation and genetic imprinting in water lily species, finding that maternal gene expression and parent-specific DNA methylation in the endosperm likely represent the ancestral condition of seed development.
🔗 doi.org/10.1093/molbev/msaf271
#evobio #molbio #PlantSky
🔗 doi.org/10.1093/molbev/msaf271
#evobio #molbio #PlantSky
Reposted by Krish Sanghvi
New work from @rohner.bsky.social & @alexckeene.bsky.social 🐟
Elevated DNA damage without signs of ageing in the short-sleeping Mexican cavefish offers a unique model to study sleep, DNA repair, and ageing.
buff.ly/6VrO19l
buff.ly/6VrO19l
November 24, 2025 at 9:08 AM
New work from @rohner.bsky.social & @alexckeene.bsky.social 🐟
Reposted by Krish Sanghvi
New paper out in @behavecol.bsky.social!
Multiple studies show that sexually selected traits such as colours can reflect the presence of pathogens/parasites, but, can defensive coloration do the same? L. Schlippe Justicia, @carodittrich.bsky.social, O. Nokelainen & I tackled that question (1/3)
Multiple studies show that sexually selected traits such as colours can reflect the presence of pathogens/parasites, but, can defensive coloration do the same? L. Schlippe Justicia, @carodittrich.bsky.social, O. Nokelainen & I tackled that question (1/3)
November 24, 2025 at 11:01 AM
New paper out in @behavecol.bsky.social!
Multiple studies show that sexually selected traits such as colours can reflect the presence of pathogens/parasites, but, can defensive coloration do the same? L. Schlippe Justicia, @carodittrich.bsky.social, O. Nokelainen & I tackled that question (1/3)
Multiple studies show that sexually selected traits such as colours can reflect the presence of pathogens/parasites, but, can defensive coloration do the same? L. Schlippe Justicia, @carodittrich.bsky.social, O. Nokelainen & I tackled that question (1/3)
Reposted by Krish Sanghvi
This is the first paper to originate from my lab and include Hamilton undergraduates! So proud of the hard work they put into this paper 🐸
Just in IOB's issue!
Relationships between Pre- and Postcopulatory Sexually Selected Traits in Green #Frogs (Lithobates clamitans)
M O Girard, C J Clark, Ariel Kahrl
doi.org/10.1093/iob/...
"Sexual selection is thought to be a primary driver of trait #evolution..."
#science #amphibians #bio
Relationships between Pre- and Postcopulatory Sexually Selected Traits in Green #Frogs (Lithobates clamitans)
M O Girard, C J Clark, Ariel Kahrl
doi.org/10.1093/iob/...
"Sexual selection is thought to be a primary driver of trait #evolution..."
#science #amphibians #bio
November 24, 2025 at 2:56 PM
This is the first paper to originate from my lab and include Hamilton undergraduates! So proud of the hard work they put into this paper 🐸
Reposted by Krish Sanghvi
Nature research paper: Repulsions instruct synaptic partner matching in an olfactory circuit
go.nature.com/3LNmbtT
go.nature.com/3LNmbtT
Repulsions instruct synaptic partner matching in an olfactory circuit - Nature
Transcriptomic screening identifies pairs of cell-surface proteins that mediate repulsive interactions between axons and dendrites of non-cognate partner neurons, thereby contributing to correct synaptic partner matching.
go.nature.com
November 24, 2025 at 6:36 PM
Nature research paper: Repulsions instruct synaptic partner matching in an olfactory circuit
go.nature.com/3LNmbtT
go.nature.com/3LNmbtT