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Robert Kofler

@rokofler.bsky.social
222 followers 144 following 23 posts
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Reposted by Robert Kofler
Maya Voichek @mayavoichek.bsky.social · 24/09/2026
Super excited to share my postdoctoral work at @imbavienna.bsky.social @viennabiocenter.bsky.social - We discovered that some retrotransposons, or "jumping genes" 🧬, are able to spread from cell to cell via a new viral infectivity route. A short thread: 🧵👇 (1/7)
AI-generated illustration of the soma-to-germline transmission of retrotransposons described in our work
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Reposted by Robert Kofler
Dr. Sarah Signor @signor-molevol.bsky.social · 16/09/2026
Congratulations to @rpianezza.bsky.social @rokofler.bsky.social, Matt Beaumont and Sarah Saadain! We found an endogenous retro virus currently invading D. melanogaster!
nature.com
The ongoing invasion of the endogenous retrovirus Kuruka in natural Drosophila melanogaster populations - Nature Communications
Transposable elements are mobile DNA sequences that can copy themselves and spread between species. This study finds that Kuruka, a retrovirus-like transposon, invaded Drosophila melanogaster within t...
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Reposted by Robert Kofler
Artem Ilin @adc34.bsky.social · 13/09/2026
www.annualreviews.org/content/jour... #TESky
annualreviews.org
The History of Transposable Element Invasions in Drosophila melanogaster
As a fundamental biological principle, genomic information is typically transmitted vertically from parent to offspring. Occasionally, however, genetic material is transferred horizontally between spe...
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Robert Kofler @rokofler.bsky.social · 10/09/2026
super proud - my very first review is online www.annualreviews.org/content/jour... many thanks to @signor-molevol.bsky.social @rpianezza.bsky.social @almoroscarpa.bsky.social for the fun collaboration
annualreviews.org
The History of Transposable Element Invasions in Drosophila melanogaster
As a fundamental biological principle, genomic information is typically transmitted vertically from parent to offspring. Occasionally, however, genetic material is transferred horizontally between spe...
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Robert Kofler @rokofler.bsky.social · 31/08/2026
How much DNA actually moves between eukaryote species? Nobody knows - maybe because we've been asking with the wrong data. Our new review makes the case for ancient and historical DNA as the missing tool: genomes from before and after a transfer happened. www.sciencedirect.com/science/arti...
sciencedirect.com
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Reposted by Robert Kofler
PLOS Biology @plosbiology.org · 11/03/2026
In a new study, Sarah Marion &co use genetic mapping and whole genome sequencing in wild #Drosophila to reveal the genetic basis of naturally occurring lethal mutations and introduce a new model that could explain their frequencies in natural populations. 🧪 #genetics
plos.io
Transposable elements contribute substantially to naturally occurring genetic lethality in Drosophila melanogaster
Recessive lethal mutations are common and often persist at unexpectedly high frequencies due to diverse mutational causes. This study shows that many lethal alleles in Drosophila melanogaster arise…
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Reposted by Robert Kofler
Dominik Handler @86dominik.bsky.social · 13/02/2026
How does the piRNA pathway solve the self vs. non-self problem? 🧬 Since piRNAs come from single-stranded RNA, how does the cell choose the right ones? For years, "piRNA clusters" were seen as THE privileged source. But are they really special and earmarked for biogenesis? (1/19)
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Reposted by Robert Kofler
Oded Rechavi @odedrechavi.bsky.social · 08/11/2025
The idea is to decouple the journals from the review step. They’ll still exist, but they’ll need to add other value. They’ll highlight, curate, add new perspectives. If they do a good job they can still be prestigious (like Scientific American or Wired) (1.2) 👇
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Luca Soldini @lucasoldini.bsky.social · 27/10/2025
(1/9) Join us in Bern, Switzerland (8–11 Feb 2026) for our EMBO Workshop on Molecular Mechanisms of Selfish Elements and Strategies! Organized with Tanja Schwander, Laura Ross (@laurarossevo.bsky.social) and Axel Imhof. meetings.embo.org/event/26-sel... #EMBOselfishElements #EMBOevents
meetings.embo.org
Molecular mechanisms of selfish elements and strategies
Certain genes, chromosomes, organelles, or entire sets of chromosomes can bias their transmission to the next generation, propagating themselves at the expense of the rest of the genome. Referred to …
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Robert Kofler @rokofler.bsky.social · 22/10/2025
super cool - I am constantly wondering about the effects of recent TE invasions? lethal mutations seems to be one striking effect www.biorxiv.org/content/10.1...
biorxiv.org
Transposable elements drive much of naturally occurring genetic lethality in Drosophila melanogaster
Recessive lethal mutations are widespread across studied species, with estimates suggesting that each individual carries at least one. Numerous lethal alleles persist in wild populations at higher fre...
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Reposted by Robert Kofler
DrosEU @droseu.bsky.social · 19/10/2025
We are in Bluesky and we are happy to share our two last consortium publications: the DrosEU expanded DEST dataset and a Continent-wide study of phenotypic differentiation among European #Drosophila melanogaster populations (1/7)
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Reposted by Robert Kofler
HEAS @heasvienna.bsky.social · 13/10/2025
@kuhlwilm.bsky.social from #HEASVienna introducing @rokofler.bsky.social for the #HEASSeminar in #AncientGenomics taking place now online and in-person at the #UBB @univie.ac.at
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Reposted by Robert Kofler
HEAS @heasvienna.bsky.social · 09/10/2025
We are looking forward to welcoming @rokofler.bsky.social to #HEASVienna as part of the #HEASSeminar in #AncientGenomics. Please note the slightly earlier start time of 10:00 CEST. More information and registration on our website 👇🔗
heas.at
HEAS Seminar Series - Ancient Genomics - HEAS
As part of the HEAS Seminar Series in Ancient Genomics, Robert Kofler from Vetmeduni Vienna will give a talk on Museomics reveals whether humans triggered widespread genome invasions across species on...
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Robert Kofler @rokofler.bsky.social · 04/10/2025
I'm wondering if this is not a unique, once in a lifetime opportunity, to study the spread and silencing of an iERV in a natural population. last time we checked it was not yet in Vienna
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Reposted by Robert Kofler
Darren Obbard @darrenobbard.bsky.social · 16/09/2025
Another preprint from @pankajd.bsky.social ! www.biorxiv.org/content/10.1...
biorxiv.org
Predictors of protein evolution in the drosophilid immune system
The evolutionary dynamics of immune genes are shaped by diverse selective pressures, yet the relative roles of gene-level traits, functional specialization, and pathway context remain poorly understoo...
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Reposted by Robert Kofler
Yun S. Song @yun-s-song.bsky.social · 11/09/2025
SINGER, our ARG inference method, is finally published and freely available online: doi.org/10.1038/s415... It was a long journey – 16 months from initial submission to acceptance. Is it just me, or has peer review gotten more arduous lately? 4+ rounds of review isn't so unusual these days...
doi.org
Robust and accurate Bayesian inference of genome-wide genealogies for hundreds of genomes - Nature Genetics
SINGER is a method for creating ancestral recombination graphs to understand the genealogical history of genomes. The method has increased speed, and thus scalability, without sacrificing accuracy.
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Justin Blumenstiel @bdelloid.bsky.social · 30/08/2025
In all my obsession with RNA silencing, I realized I became blind to the significance of autoregulation of DNA transposons. Which is funny, because it was characterized in many ways by my Ph.D. advisor. From 2013: elifesciences.org/articles/00668
elifesciences.org
The autoregulation of a eukaryotic DNA transposon
A DNA transposon, or ‘jumping gene’, controls its amplification within a genome through a competition between the enzyme multimers that are responsible for its mobility.
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Reposted by Robert Kofler
Amelia Cervera 🍉 @ameliacervera.eurosky.social · 29/08/2025
#TEsky
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Reposted by Robert Kofler
Matt Beaumont @mbeaum.bsky.social · 28/08/2025
Germline defence from TEs largely relies on piRNAs. Yet, @divyaselvaraju.bsky.social and I monitored a P-element invasion in Drosophila that was stopped by an internally deleted copy, no host intervention required! doi.org/10.1371/jour... Many thanks to @rpianezza.bsky.social & @rokofler.bsky.social
journals.plos.org
Rapid emergence of non-autonomous elements may stop P-element invasions in the absence of a piRNA-based host defence
Author summary Transposable elements (TEs) are short, self-replicating DNA sequences found in nearly all genomes. While they can be harmful to their hosts, many organisms have evolved defence systems,...
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Reposted by Robert Kofler
Dr. Sarah Signor @signor-molevol.bsky.social · 15/08/2025
@shashankpritam.bsky.social first research paper on the effect of insertion bias on transposon fitness!! With @almoroscarpa.bsky.social and @rokofler.bsky.social link.springer.com/article/10.1...
link.springer.com
The impact of insertion bias into piRNA clusters on the invasion of transposable elements - BMC Biology
Background In our current understanding of transposable element (TE) invasions, TEs move freely until they accidentally insert into a piRNA cluster, where they are silenced by the production of piRNA ...
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Reposted by Robert Kofler
Julius Brennecke @juliusbrennecke.bsky.social · 03/08/2025
piRNAs are essential for transposon silencing in the animal germline. But how do hosts trap transposon sequences in genomic loci that help establish a piRNA response? Looking at a natural transposon invasion, Baptiste Rafanel and Kirsten Senti made some remarkable observations.
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Reposted by Robert Kofler
Clément Goubert @clementgoubert.bsky.social · 25/07/2025
Adaptive P-element insertions in a long non-coding RNA are associated with unique silencing properties www.biorxiv.org/content/10.1...
biorxiv.org
Adaptive P-element insertions in a long non-coding RNA are associated with unique silencing properties
Transposable elements are genetic parasites whose mobilization throughout the genome is a major source of deleterious mutations. However, some TE insertions are beneficial because they improve host fi...
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Reposted by Robert Kofler
Julius Brennecke @juliusbrennecke.bsky.social · 22/07/2025
@rokofler.bsky.social uncovered a treasure cove in Drosophila populations here. Remarkable and highly relevant findings on horizontal transfer of all kinds of TEs, irrespective of their transposition type.
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Reposted by Robert Kofler
ravinderkanda.bsky.social @ravinderkanda.bsky.social · 22/07/2025
@rokofler.bsky.social talks about the spread of TEs in drosophila over time - are humans responsible?? #smbe2025
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Molecular Biology and Evolution @molbioevol.bsky.social · 10/07/2025
@rpianezza.bsky.social @almoroscarpa.bsky.social, A. Haidar, @signor-molevol.bsky.social ‪& @rokofler.bsky.social investigated 11 TEs in D. melanogaster that added ~1 Mbp via horizontal transfer, likely from other Drosophila spp. 🔗 doi.org/10.1093/molbev/msaf143 #evobio #drosophila #TEsky
doi.org
Spatiotemporal Tracking of Three Novel Transposable Element Invasions in Drosophila melanogaster over the Last 30 Years
Abstract. Transposable elements (TEs) are repetitive sequences capable of mobilizing within genomes, exerting a significant influence on evolution througho
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Reposted by Robert Kofler
Society for Molecular Biology and Evolution @official-smbe.bsky.social · 30/06/2025
Talks by: @gonzalezlabbcn.bsky.social Yalong Guo Axel Meyer Emmanuelle Lerat Cheng Sun Qiheng Xu Jie Cui Ilia Kirov Chengyi Song Li Wang Jing Wang @rokofler.bsky.social Ying Liu Shengjun Tan
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Robert Kofler @rokofler.bsky.social · 11/06/2025
super-happy, three TE invasions in Dmel during the last 30 years; the crazy thing - Transib1 spread in just 2-3years in global populations academic.oup.com/mbe/advance-... great work everyone @rpianezza.bsky.social @almoroscarpa.bsky.social @signor-molevol.bsky.social Anna Haider
academic.oup.com
Spatio-temporal tracking of three novel transposable element invasions in Drosophila melanogaster over the last 30 years
Abstract. Transposable elements (TEs) are repetitive sequences capable of mobilizing within genomes, exerting a sigfinificant influence on evolution throug
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Reposted by Robert Kofler
Dr. Sarah Signor @signor-molevol.bsky.social · 10/06/2025
The work on TE invasions in D. melanogaster continues! We found three more recent invasions, one of which occurred in ~3 years worldwide. Another great collaboration with @rpianezza.bsky.social @rokofler.bsky.social and others
academic.oup.com
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Reposted by Robert Kofler
Dmitri Petrov @petrovadmitri.bsky.social · 03/06/2025
Flybase lost all of the NIH support overnight - it is a disaster for the community. Please consider donating. I just did! www.philanthropy.cam.ac.uk/give-to-camb...
philanthropy.cam.ac.uk
Drosophila Genetic Database
The Drosophila Genetic Database, FlyBase, is on the brink of collapse due to the sudden termination of the FlyBase NIH grant, which includes salaries for 5 literature curators based at the University ...
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Robert Kofler @rokofler.bsky.social · 03/06/2025
great work of Riccardo tracing the origin of D.melanogaster transposons
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Robert Kofler @rokofler.bsky.social · 06/05/2025
this is fantastic news - congrats Philipp :)
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PopGen Vienna @popgenviennaphd.bsky.social · 14/04/2025
Our #PhD student Almorò Scarpa @almoroscarpa.bsky.social looks forward to #PopGen meeting tomorrow! He will tell us about "Two centuries of transposable element invasions in Drosophila melanogaster" Full schedule and streaming details at www.popgen-vienna.at/news/seminars/
popgen-vienna.at
Seminars
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Robert Kofler @rokofler.bsky.social · 27/03/2025
Super proud of amazing PhD student Sarah Saadain winning the Carl von Schreibers prize with her cockroach project; Vetmeduni Wien and @nhmwien.bsky.social www.nhm-wien.ac.at/presse/press...
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Reposted by Robert Kofler
Clément Goubert @clementgoubert.bsky.social · 24/03/2025
Polymorphic transposable elements contribute to variation in recombination landscapes (drosohila 🪰) www.pnas.org/doi/full/10.... #TEsky
pnas.org
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...
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Maya Voichek @mayavoichek.bsky.social · 17/03/2025
1/ Transposable elements are often called "jumping genes" because they mobilize within genomes. 🧬 But did you know they can also jump 𝘣𝘦𝘵𝘸𝘦𝘦𝘯 cells? 🤯 Our new study reveals how retrotransposons invade the germline directly from somatic cells. www.biorxiv.org/content/10.1... A short thread 🧵👇
Drosophila follicle showing retrotransposons (pink & yellow) expressed in somatic cells infecting the oocyte
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Oded Rechavi @odedrechavi.bsky.social · 07/03/2025
The truth is that the scientific process is horribly inefficient and wasteful. But the solution is NOT cutting funds and it’s NOT top down guidance of what should be studied. Instead, we should revolutionize how we publish and improve peer review.
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Cedric Feschotte @cedricfeschotte.bsky.social · 07/03/2025
Did you know that some bacteria have linear chromosomes? Not only that, but as in certain eukaryotes (most famously 🪰) bacterial telomeres can be capped by specialized transposons!! Exciting 🤯 work by fellow transposon lovers in the Peters lab @ Cornell - congrats to all!
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Cedric Feschotte @cedricfeschotte.bsky.social · 01/03/2025
Viva Vienna!
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Trends in Genetics @cp-trendsgenetics.bsky.social · 26/02/2025
In this new Feature Review, Yukihide Tomari and colleagues examine repression mechanisms that silence transposons and discuss the dynamic coevolution of transposons and host defenses in animals. Read for FREE till April 11th: authors.elsevier.com/a/1keCScQbJF...
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Robert Kofler @rokofler.bsky.social · 26/02/2025
Our new paper on the P-element invasion in D.simulans mobilednajournal.biomedcentral.com/articles/10....
mobilednajournal.biomedcentral.com
On the origin of the P-element invasion in Drosophila simulans - Mobile DNA
The horizontal transfer (HT) of the P-element is one of the best documented cases of the HT of a transposable element. The P-element invaded natural D. melanogaster populations between 1950 and 1980 f...
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Reposted by Robert Kofler
Cedric Feschotte @cedricfeschotte.bsky.social · 24/02/2025
Feels awkward but necessary to celebrate scientific progress in this imperiled time for US biomedical research. Proud of our latest paper out today exploring the role of transposable elements in antiviral resistance to HIV 🦠 genomebiology.biomedcentral.com/articles/10.... 🧵1/n
genomebiology.biomedcentral.com
Transposable elements may enhance antiviral resistance in HIV-1 elite controllers - Genome Biology
Background Less than 0.5% of people living with HIV-1 are elite controllers (ECs)—individuals who maintain undetectable plasma viremia without antiretroviral therapy, despite having replication-compet...
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Clément Goubert @clementgoubert.bsky.social · 18/02/2025
Very promising approach to characterize the mobilome in pangenomes from ! I wonder how this compares/complements to Pantera (@piosierra.bsky.social) and GraffiTE www.biorxiv.org/content/10.1... #TESky #SV #Pangenomes
biorxiv.org
Pannagram: unbiased pangenome alignment and the Mobilome calling
Pannagram is a toolkit for unbiased pangenome alignment and Mobilome detection based on full-genome assemblies. It consists of two components: a command-line interface for performing the multiple geno...
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Reposted by Robert Kofler
Daniel Croll @danielcroll.bsky.social · 16/01/2025
@tbadet.bsky.social and I have a preprint out on transposon silencing in fungi! Genome size evolution is fascinating and showcases the dynamic nature of transposon activation. What we understand less are the dynamics of transposon defense systems encoded by the genomes. doi.org/10.1101/2025...
Fungal phylogeny highlighting genome size changesSummary of genome size variation among groups
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Casey Bergman @caseybergman.bsky.social · 10/01/2025
New Bergman Lab paper now online at GBE: "Horizontal transfer and recombination fuel Ty4 retrotransposon evolution in Saccharomyces"
academic.oup.com
Horizontal transfer and recombination fuel Ty4 retrotransposon evolution in Saccharomyces
Abstract. Horizontal transposon transfer (HTT) plays an important role in the evolution of eukaryotic genomes, however the detailed evolutionary history an
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Dr. Sarah Signor @signor-molevol.bsky.social · 09/01/2025
This collaboration was such a pleasure. Our new paper on cascades of HT after introduction of two TEs to human commensals www.nature.com/articles/s41...
nature.com
Double trouble: two retrotransposons triggered a cascade of invasions in Drosophila species within the last 50 years - Nature Communications
Horizontal transfer of genetic material in eukaryotes has rarely been documented over short evolutionary timescales. Here, the authors show that two transposable elements, Shellder and Spoink, invaded...
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Cedric Feschotte @cedricfeschotte.bsky.social · 09/01/2025
It’s often assumed that the horizontal transfer of transposons btw animals is rare (Myr scale). But recent detective work by Kofler lab & others suggest HT must be very frequent, so that a single transposon can successfully invade multiple species around the world in just a few decades! Wild!
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Robert Kofler @rokofler.bsky.social · 09/01/2025
super proud - our new work about the invasions triggered by two troublesome TEs in Nat. Comm. www.nature.com/articles/s41...
nature.com
Double trouble: two retrotransposons triggered a cascade of invasions in Drosophila species within the last 50 years - Nature Communications
Horizontal transfer of genetic material in eukaryotes has rarely been documented over short evolutionary timescales. Here, the authors show that two transposable elements, Shellder and Spoink, invaded...
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PlantEvolution 🌱🌾 @plantevolution.bsky.social · 27/12/2024
Announcing a curated collection of long-read genomes for Arabidopsis thaliana: The 1001 Genomes Plus Project. Currently 453 unique accessions/almost 600 assemblies. Interested in contributing? Please contact us! #plantscience www.biorxiv.org/content/10.1...
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phy_papers @phypapers.bsky.social · 23/12/2024
Phylogenetic relatedness rather than aquatic habitat fosters horizontal transfer of transposable elements in animals biorxiv.org/cgi/content/short/2024.…
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