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Mingzuyu Pan

@mingzuyu-pan.bsky.social
52 followers 129 following 1 posts

PhD student at Szpiech lab @Penn state. Population genetics. Runs of homozygosity. Evolutionary human genetics. My personal website: mingzuyupan.com

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Reposted by Mingzuyu Pan
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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Maria Akopyan, PhD @akopyan.bsky.social · 24/09/2026
New preprint out today! [1/5] Can higher recombination rates help populations adapt more quickly to environmental change? We used forward-time simulations to find out. www.biorxiv.org/content/10.6...
biorxiv.org
Recombination accelerates adaptation across genetic architectures and demographic histories
According to classic population genetics theory, recombination shapes the efficacy of natural selection. However, whether variation in recombination rate itself translates into meaningful differences ...
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bioRxivpreprint @biorxivpreprint.bsky.social · 24/09/2026
Recombination accelerates adaptation across genetic architectures and demographic histories www.biorxiv.org/content/10.64898/20…
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Judith Mank @judithmank.bsky.social · 23/09/2026
So very, very happy to see this out @plosbiology.org : Ancient inversion polymorphisms associate with sexually selected traits across natural guppy populations. Beautiful work by two very clever and talented coauthors, Yuying Lin and @vdbijl.bsky.social . journals.plos.org/plosbiology/... 1/
journals.plos.org
Ancient inversion polymorphisms associate with sexually selected traits across natural guppy populations
Genomic inversions spanning many genes can persist for millions of years. This study of Trinidadian guppy populations reveals how both ecological conditions and mate choice help maintain this hidden l...
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Polina Novikova @pnovik.bsky.social · 16/09/2026
I am happy to present our work @liverworks.bsky.social @robinburns.bsky.social @alisondawnscott.bsky.social on centromeric repeat turnovers, of which we counted three in the Arabidopsis genus:
biorxiv.org
The Nature of Centromeric Repeat Turnovers in the genus Arabidopsis
Centromeres are critical for accurate segregation of chromosomes and are often composed of megabases of tandemly arranged satellite repeats. Yet, despite their conserved function, the DNA sequence of ...
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bioRxiv Genomics @biorxiv-genomic.bsky.social · 16/09/2026
PRDM9-mediated meiotic hotspot specification is constrained in humans despite extensive sequence diversity www.biorxiv.org/content/10.64898/20…
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Matthew Hahn @3rdreviewer.bsky.social · 15/09/2026
New paper with Trang Nguyen! Do you have only a single parent and offspring, but still want to calculate mutation rates? We've got the tool for you--OOPS github.com/TrangNg-Th/O... www.biorxiv.org/content/10.6...
biorxiv.org
Estimating de novo mutation rates using parent-offspring pairs
Existing pedigree approaches to identifying de novo mutations (DNMs) require at least two parents and a single offspring, limiting applicability. Here, we introduce OOPS (Only One Parent Sequencing), ...
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PLOS Biology @plosbiology.org · 09/09/2026
How & why does the distribution of fitness effects #DFE vary among species? Meixi Lin, @klohmueller.bsky.social &co analyze genetic variation from 11 animal species, finding that fitness effects are influenced by phylogeny, population size & organismal complexity @plosbiology.org 🧪 buff.ly/t5q7Mqo
Mutations are more deleterious in mammals compared to insects and birds. Left: The phylogenetic relationship among the (sub)species included in this study. Middle: The mean deleterious mutation effects (|s|mean) for 11 (sub)species, assuming a gamma-distributed DFE of neutral and deleterious mutations. From top to bottom, species are increasingly divergent from humans: mice, fin whales, vaquitas, arctic wolves, gray wolves, collared flycatchers, pied flycatchers, halictid bees, Drosophila and mosquitoes. Numbers show the ranks of |s|mean. Right: The shape parameter (alpha) of the gamma-distributed DFE for 11 (sub)species. Numbers show the ranks of alpha.
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André Marques @amarques.bsky.social · 25/01/2026
Another beauty from our recent study! 𝐇𝐨𝐥𝐨𝐓𝐫𝐚𝐜𝐤𝐢𝐧𝐠 thousands of holocentromeres' synteny across 40 MY of evolution Turns out holocentromeres can be stable in identity but wildly dynamic in structure. 🧬 If you want to read more about it, here: www.biorxiv.org/content/10.6... #Centromeres #Pangenome
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Joelle Lafond, PhD @joellelafond.bsky.social · 08/09/2026
🚨Our new preprint is out! 🤩 🌟 Mutation rates vary widely across taxa, and decades of research have sought to explain why. ♀️♂️ Reproductive modes, and evolutionary shifts between them, could help explain some of this variation. ❓ So what does the evidence tell us? 👀 Read our preprint to find out!
doi.org
Reproductive mode and the evolution of mutation rate
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Evolution Letters @evolletters.bsky.social · 31/08/2026
Recombination helps evolution—but it can also cause mutations. New theory shows that even small increases in mutation near crossovers can oppose the evolution of higher recombination rates. By @sarperotto.bsky.social and Bret Payseur academic.oup.com/evlett/advan...
academic.oup.com
Elevated mutation near crossovers inhibits the evolution of recombination
Abstract. Recombination diversifies offspring genomes and helps ensure chromosome segregation during meiosis. Mutation rates are elevated near crossovers d
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Jeffrey Ross-Ibarra @jrossibarra.bsky.social · 26/08/2026
Why make the page, I asked @ce7an.bsky.social. Nobody will read it, I said. And here we are, with Cheeto being the most widely read page in the UC Davis High Performance Computing website. hpc.ucdavis.edu/people/cheet...
hpc.ucdavis.edu
Dr. Cheeto Cat
Cheeto joined HPC@UCD as a stray scholar-in-residence and has since established himself as a permanent fixture of academic life. Although lacking a formal degree, he has consistently demonstrated exce...
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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
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bioRxiv Evolutionary Biology @biorxiv-evobio.bsky.social · 25/07/2026
Rapid floral syndrome convergence in Penstemon through independent genetic variation www.biorxiv.org/content/10.64898/20…
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bioRxiv Evolutionary Biology @biorxiv-evobio.bsky.social · 17/07/2026
Rapid expansion overcomes inbreeding in cross-hemisphere colonization of Barn Swallows www.biorxiv.org/content/10.64898/20…
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schlebuschgroup.bsky.social @schlebuschgroup.bsky.social · 20/07/2026
Our new paper is out! Our review explores the current evidence for ancient pathogen genomics in Africa, highlights major knowledge gaps, and discusses future directions for the field. www.sciencedirect.com/science/arti... 🌍🦠🧬 Congrats to Maja and co-authors! 🎉👏🎊 #AncientDNA #Paleogenomics #Africa
sciencedirect.com
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Mateusz Konczal @mkonczal.bsky.social · 08/07/2026
Our paper on genetic load in an invasive guppy population is now published in @genomeresearch.bsky.social It was a fantastic journey — from field sampling to analysis and finally publication. I hope readers will enjoy the story as much as we enjoyed working on it. genome.cshlp.org/content/36/7...
genome.cshlp.org
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Christa Caggiano @christacaggiano.bsky.social · 02/07/2026
I'm proud to share our review paper on founder populations in biobanks published recently! It was an extremely cool and humbling process to learn about how important founder populations are in human genetics. I'm glad to play a small part in it www.annualreviews.org/content/jour...
annualreviews.org
Revisiting Founder Populations in an Age of Global Biobanks
Founder populations have played a pivotal role in human genetics, enabling the discovery of causal variants for disease and providing insight into population history and dynamics. The rapid expansion ...
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schlebuschgroup.bsky.social @schlebuschgroup.bsky.social · 01/07/2026
Our colleague Francesco Giannelli presented this great poster at #SMBE2026: Reconstructing the Bantu Expansion Through an Individual-Based Simulation His work uses SLiM forward-time simulations to jointly model genetic and linguistic evolution among Bantu-speaking populations. 🧬 🗣️ 💻
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Chris Kyriazis @ckyriazis.bsky.social · 01/07/2026
Come to my talk today at 4:20 if you want to hear about long ROH and Hawaiian birds 🤙 #SMBE2026
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SMBE IDEA taskforce @smbe-idea.bsky.social · 30/06/2026
We’re honored to welcome @jazlynmooney.bsky.social as an invited speaker at #IDEA2026 #SMBE2026! 🧬✨ @official-smbe.bsky.social
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bioRxiv Genetics @biorxiv-genetic.bsky.social · 24/06/2026
Large-scale meta-analysis of over one million individuals reveals the genetic architecture of 127 complex traits in East Asian populations www.biorxiv.org/content/10.64898/20…
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Jeff Spence @jeffspence.github.io · 22/06/2026
Excited to see @jonj-udd.bsky.social's fantastic work out @genetics-gsa.bsky.social. Selection in _heterozygotes_ is the primary force shaping allele frequencies of loss-of-function mutations in humans, even in genes only associated with purely recessive diseases. 🧪🧬 doi.org/10.1093/gene...
doi.org
Allele Frequencies at Recessive Disease Genes are Mainly Determined by Pleiotropic Effects in Heterozygotes
Abstract. The classic theory of mutation-selection balance predicts the equilibrium frequency of genetic variation under negative selection. The model pred
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Jeffrey Ross-Ibarra @jrossibarra.bsky.social · 15/06/2026
People. @ksamuk.bsky.social and others have made this argument before. There’s good software to do this right. Here’s the argument again: Invariant sites matter! They’re not in your standard vcf and many programs pretend they are anyway. academic.oup.com/gbe/article/...
academic.oup.com
A Recipe for a Good π. How to Properly Estimate Population Genetics Summary Statistics and Why we Should Systematically Report Them
Abstract. Many long-standing questions in population genomics can now be addressed through comparative analyses and by leveraging the vast amount of genomi
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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...
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Ben Sheldon @sheldonbirds.bsky.social · 10/06/2026
OK - I have to admit this is a pretty cool-sounding title. www.nature.com/articles/s41...
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Genetics Society of America @genetics-gsa.bsky.social · 06/06/2026
In #GENETICS, @jazlynmooney.bsky.social and the team present a unified theoretical framework for understanding how recombination shapes ancestry patterns after admixture. 🔗 buff.ly/7i4EFAc
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Joanna Masel @joannamasel.bsky.social · 03/06/2026
Our new paper doi.org/10.1098/rspb... on long-term genetic threats to small populations finds that "mutational meltdown" (bad mutations fixing) is less of a problem than "mutational drought" (too few good new mutations) @wmawass.bsky.social @uliseshmc.bsky.social @jeremyjberg.bsky.social 1/5
doi.org
Extinction vortices are driven more by a shortage of beneficial mutations than by deleterious mutation accumulation
Abstract. Habitat loss contributes to extinction risk in multiple ways. Genetically, small populations can face an ‘extinction vortex’—a positive feedback
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Hui Zhen Tan @huizhentan.bsky.social · 03/06/2026
New study 🧬 Inbreeding depression is a concern in small populations, and evaluating its genomic proxies is important for #ConservationGenomics. In hihi, genome-wide homozygosity best predicts lifetime reproductive success, compared to genetic load and FROH. Publication: doi.org/10.1111/eva.... 1/3
doi.org
Genome‐Wide Homozygosity Predicts Inbreeding Depression in the Hihi/Stitchbird (Notiomystis cincta) Better Than Realised Load
Population declines result in increasingly small populations, which often experience an increase in inbreeding. Inbreeding may be negatively associated with fitness traits like survival and reproduct...
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Yuval Simons @yuvalsim.bsky.social · 31/05/2026
Our new paper is out! Tweetorial coming soon!
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gs2747.bsky.social @gs2747.bsky.social · 28/05/2026
Happy to have the chance to share this commentary by @will-milligan.bsky.social & me: rdcu.be/fldBs.
rdcu.be
Adaptation: by giant leaps or many tiny steps?
Nature Reviews Genetics - In this Comment, the authors argue that understanding the genetic basis of adaptation requires considering the genetic architecture and ecological properties of traits...
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Stephen Heard @stephenbheard.bsky.social · 28/05/2026
I maintain a curated list of resources for scientific writers, and every now and again I remind you that it exists. And: if you know of a resource that should be on my list but isn't, suggest it please!
scientistseessquirrel.wordpress.com
Writing Resources
Writing is a huge part of any career in science, and for many writers – no, for most writers – it’s a daunting challenge. But it’s not a challenge that you have to tackle alone. That’s a lesson I w…
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Moneeza Siddiqui @moneeza-ks.bsky.social · 28/05/2026
Very cool paper from @mendelrandom.bsky.social & colleagues on whether natural selection has contributed to the higher cardiometabolic disease risk observed in South Asians relative to Europeans. One striking finding around fat distribution.... www.medrxiv.org/content/10.6...
medrxiv.org
Evaluation of the Contribution of Natural Selection to Greater Cardiometabolic Disease Risk in South Asian Populations
A greater genetic susceptibility has been proposed as an explanation of the greater rates of cardiovascular and metabolic disease in South Asian relative to European populations. We first demonstrate ...
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Arslan Zaidi @aazaidi.bsky.social · 28/05/2026
Happy to present our perspective on how to think about group-differences in genetic risk. With @nicole-kleman.bsky.social , Meng Lin, and Chris Gignoux.
arxiv.org
Tread lightly interpreting group differences in genetic risk
Observed differences in mean phenotypic values across human groups have attracted renewed interest with the rise of large-scale genomic studies and polygenic risk prediction. However, the genetic basi...
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Jonathan Pritchard @jkpritch.bsky.social · 18/05/2026
This is a fantastic mentoring opportunity!
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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?
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Molly Przeworski @mollyprz.bsky.social · 15/05/2026
Happy to highlight new findings by Vanesa Getseva and Lin Poyraz about the sources of variation in germline mutation rates among humans: www.biorxiv.org/content/10.6... Joint work with Anastasia Stolyarova and @ipsitaagarwal.bsky.social. 1/n
biorxiv.org
A sibling study of variation in parental mutation rates
People are born with variable numbers of de novo germline mutations (DNMs), depending primarily on the ages of their parents. To explore additional causes, we developed an approach to call DNMs from nucleotide differences between siblings in genomic regions inherited identical by descent from both parents. Applying it to whole genome sequences from 28,985 sibling pairs of diverse genetic ancestries present in the UK Biobank and All of Us datasets, as well as 2,330 trios, we identified >800K autosomal DNMs and characterized mutation phenotypes in 27,645 sets of parents. We found subtle shifts in the mutation spectrum but no differences in total DNM rates among genetic ancestry groups, or between smokers and non-smokers. Testing for associations between parental mutation phenotypes and their burden of loss-of-function and deleterious missense variants in a set of 180 DNA repair and maintenance genes, we discovered that disruptions in REV1 and LIG1 increase germline mutation rates, and thus that rare mutator alleles segregate in population cohorts. ### Competing Interest Statement The authors have declared no competing interest. NIH, R35 GM083098
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Nicholas Mancuso @nmancuso.bsky.social · 15/05/2026
Super cool work @epigenci.bsky.social ! academic.oup.com/genetics/art...
academic.oup.com
Genetic prediction with ARG-powered linear algebra
Abstract. Ancestral recombination graphs (ARGs) are an attractive means for quantitative genetic analysis of complex traits because they encode the realize
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Tom Booth @boothicus.bsky.social · 26/08/2025
🏺 Useful paper from @mp-williams.bsky.social and co. showing different modelling of the spread of Neolithic farming across Europe. Explores different rates and mechanisms of cultural transmission and suggests as migrants with origins in Anatolia moved across… www.nature.com/articles/s41...
nature.com
Modeling the European Neolithic expansion suggests predominant within-group mating and limited cultural transmission - Nature Communications
The Neolithic Revolution marked an important shift from foraging to farming in human society. Here, the authors show that in Europe the spread of farming involved mostly within-group mating and limite...
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Shai Carmi @shaicarmi.bsky.social · 10/05/2026
Nice review paper on the genetics of founder populations. Covers historical research, recent findings, and methods for studying founder populations in large biobanks. By @christacaggiano.bsky.social, @roohy.bsky.social, @eimearekenny.bsky.social www.annualreviews.org/content/jour...
annualreviews.org
Revisiting Founder Populations in an Age of Global Biobanks
Founder populations have played a pivotal role in human genetics, enabling the discovery of causal variants for disease and providing insight into population history and dynamics. The rapid expansion ...
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Reposted by Mingzuyu Pan
Tábita Hünemeier @hunemeier.bsky.social · 22/04/2026
Our new paper is out in @nature.com! By exploring the rich genetic diversity of Indigenous peoples across America, we show how large-scale genomic data reveal far more complex evolutionary history, shaped by multiple dispersals, long-term regional continuity, and adaptation to diverse environments.
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Simon Fisher @profsimonfisher.bsky.social · 10/04/2026
Stunning illustration of how advances in cellular genomics can disentangle links between gene variants & clinical outcomes. Here, saturation editing revealed distinct neurodevelopmental disorders involving the same non-protein-coding gene. 🙌 @nickywhiffin.bsky.social @gregfindlay.bsky.social & co🧬🔬🧪
nature.com
Saturation editing of RNU4-2 reveals distinct dominant and recessive disorders - Nature
Saturation genome editing of RNU4-2 identifies the functional and clinical impact of variants across the entire gene and delineates variants that cause a new recessive neurodevelopmental disorder distinct from ReNU syndrome.
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Chris Kyriazis @ckyriazis.bsky.social · 01/04/2026
New preprint! We sequenced 175 'Alalā (Hawaiian crow) genomes to understand why >50% of eggs fail to hatch in a species recovered from just 9 individuals. What we found was a both exciting and surprising. www.biorxiv.org/content/10.6...
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Olivia Ghosh @oliviamghosh.bsky.social · 30/03/2026
Really excited that this major work from my PhD is finally published in @plosbiology.org ! In it, we were trying to tackle a fundamental question in evolution - how do genetic mutations map onto evolutionary fitness? (1/n) journals.plos.org/plosbiology/...
journals.plos.org
Genotype-fitness mapping of adaptive mutants reveals shifting low-dimensional structure across divergent environments
Predicting the effect of a genetic mutation on fitness is a major challenge in evolutionary biology. This study uses fitness effects of a large collection of adaptive yeast mutants in multiple lab env...
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Huisheng (Julie) Zhu @huishengzhu.bsky.social · 30/03/2026
Differences in evolutionary parameters have important implications for interpreting GWAS results. With the inferred parameters, we reproduced the period when major depression yielded no GWAS discoveries, and we predict that psychiatric disorders will eventually reach higher saturation points. 🧵12/n
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Harald Ringbauer @hringbauer.bsky.social · 21/03/2026
We just published a brief preprint on aDNA from two Medieval Ottonic emperors. 🧬👑 We confirm via IBD segments that remains attributed to Otto "the Great" and "Saint" Heinrich are third-degree relatives. As historically attested - suggesting that they are authentic. ✅️ doi.org/10.64898/202... (1/3)
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Harald Ringbauer @hringbauer.bsky.social · 26/01/2026
(1/2) The preprint of our perspective on genetic estimates of relatedness in animal populations is out! Big Congratulations to Annika! doi.org/10.32942/X28... A systematic review of 2,861 articles shows that, even in 2025, 75% of such studies use microsatellites. And most use only a few! #PopGen
Systematic Literature Review figure of how genetic relatedness estimates are done in the wild.
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Katarina Stuart @katarinastuart.bsky.social · 28/01/2026
New review! Theory & a practical guide to structural variants in popgen🧬 Many thanks to my co-authors: @rebekahoomen.bsky.social @annatigano.bsky.social @marenwellenreuther.bsky.social @janawold.bsky.social @dlfield.bsky.social @clairemerot.bsky.social onlinelibrary.wiley.com/doi/10.1111/...
onlinelibrary.wiley.com
A Beginner's Guide to Structural Variants in Eco‐Evolutionary Population Genomics
Whole-genome sequencing (WGS) has greatly expanded researchers' ability to study structural variants (SVs), that is, the variation in the presence, number, orientation or position of a DNA sequence. ....
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Mykhaylo M. Malakhov @mykmal.xyz · 20/12/2025
My second dissertation paper is now out in @natcomms.nature.com! Here we introduce the co-expression-wide association study (COWAS) method for identifying pairs of genes or proteins whose genetically regulated co-expression is associated with complex traits. 🧵⬇️ www.nature.com/articles/s41...
nature.com
Co-expression-wide association studies link genetically regulated interactions with complex traits - Nature Communications
Proteins can affect traits through their interactions with one another. Here, the authors propose the COWAS method to identify pairs of interacting genes or proteins whose genetically regulated co-exp...
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bioRxiv Evolutionary Biology @biorxiv-evobio.bsky.social · 18/12/2025
The Influence of Demographic History and Genetic Architecture on Complex Traits via Runs of Homozygosity www.biorxiv.org/content/10.64898/20…
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