Reposted by Cécile CourretBarbara Mellone 🇺🇦 @centromellone.bsky.social · 11/10/2026🚨🚨Preprint alert!🚨🚨 We removed the main centromere 3 domain of Drosophila‼️ We designed an inducible dCas9-Fok1 system to cut 🧬 at unique sequences flanking the ~50-kb island where most of CENP-A sits. To our knowledge, this has never been attempted in a living animal! 26231 62
Reposted by Cécile CourretSociety for Molecular Biology and Evolution @official-smbe.bsky.social · 12/06/2026#SMBE2026 S24: Molecular mechanisms of selfish elements and strategies 🗓️ Mon Jun 29, 10:20am 🔗 smbe2026.org/programme Talks by: @levine-lab.bsky.social Yu Hua @cecilecourret.bsky.social @eleanoreritter.bsky.social Elli Cryan @alexand-kwak.bsky.social Steve Perlman @antisense.bsky.social 076 7
Reposted by Cécile Courretsandraduharcourt.bsky.social @sandraduharcourt.bsky.social · 06/05/2026Please join the upcoming Jacques Monod Conference on the mechanistic and evolutionary basis of programmed DNA elimination in Roscoff, France. Deadline for abstract submission extended to May 20, 2026. cjm.sb-roscoff.fr/en/conferenc...cjm.sb-roscoff.frThe mechanistic and evolutionary basis of programmed DNA elimination | CNRS - Conférences Jacques Monod (CJM) 098 9
Reposted by Cécile CourretCNRS Biologie @cnrsbiologie.bsky.social · 28/04/2026#ResultatScientifique🔎|Activer pour mieux réprimer ? Chez la paramécie, la transcription aide à verrouiller le génome contre les éléments mobiles🧬 ✍️ @sandraduharcourt.bsky.social 📕 Genome Biology ▶️ buff.ly/RgSZhfQ 🤝 @ijmonod.bsky.social @upcite.bsky.social @cnrs-idf-villejuif.bsky.social @cnrs.fr 0115 11
Reposted by Cécile CourretKasia Siudeja @ksiudeja.bsky.social · 31/03/2026📣📣📣 A post-doc opportunity not to be missed in an ATIP-Avenir funded lab in the @i2bcparissaclay.bsky.social (and our neighbor 🪰🔬🧬)! Heterochromatin, spermatogenesis, meiotic drive and Drosophila, with @cecilecourret.bsky.social. Apply before the position fills! 056 6
Reposted by Cécile Courreti2bcparissaclay.bsky.social @i2bcparissaclay.bsky.social · 17/03/2026We are looking for outstanding scientists to develop ambitious research programs in molecular and cellular biology, with special interest in multidisciplinary projects and computational biology.More info: www.i2bc.paris-saclay.fr #MolecularBiology #CellBiology #ComputationalBiology #TeamLeaders#I2BC 02034 34
Reposted by Cécile CourretCara Brand @carabrand.bsky.social · 24/02/2026Grateful to have worked with such an incredible team on this project. Excited to finally share this story about Top2 evolution and hybrid incompatibility in Drosophila. More to come! 0217 21
Cécile Courret @cecilecourret.bsky.social · 19/02/2026🔬 Recruiting a Postdoc!!!! I’m looking for a motivated postdoc to join my lab and work on characterizing the role of a heterochromatin protein involved in a sex-ratio meiotic drive system in Drosophila. If you know someone who might be interested, please share widely! 01822 22
Reposted by Cécile Courretideevl.bsky.social @ideevl.bsky.social · 05/02/2026Pierre Capy était un généticien, un drosophiliste, un acteur majeur dans l'essor de la génétique des éléments transposables en France. Très impliqué dans l'administration de la vie scientifique, il a aussi été directeur du laboratoire LEGS (actuel @EGCE), et un des fondateurs en 2016 de @IDEEV. 246 6
Reposted by Cécile CourretTakashi Akera Lab @takashiakeralab.bsky.social · 07/02/2026Another announcement! 📣 Our work on hybrid incompatibility in cohesin protection in 🐭oocytes is published!! Congrats Warif El Yakoubi and Eddie Pan!!🎉 We found hybrids with cohesion errors in two distinct genus. www.science.org/doi/10.1126/...science.orgHybrid female sterility due to cohesin protection errors in mouse oocytesMisregulation of chromosome cohesion during female meiosis serves as a reproductive isolating barrier in mice. 34924 49
Cécile Courret @cecilecourret.bsky.social · 24/10/2025Thank you Vincent! Can't wait start new projects 😁 000 0
Cécile Courret @cecilecourret.bsky.social · 24/10/2025Our research focuses on intragenomic conflicts and their impact on genome evolution using Drosophila. A huge thanks to my amazing mentors, Catherine Montchamp-Moreau and @amlarracuente.bsky.social. I would not be here without their support over the years. 051 5
Cécile Courret @cecilecourret.bsky.social · 24/10/2025I'm thrilled to announce that I’m opening my own research team in the Department of Genome Biology at I2BC @i2bcparissaclay.bsky.social ! #ATIP-Avenir Very excited to start this new adventure! www.i2bc.paris-saclay.fr/equipe-intra...i2bc.paris-saclay.frEquipe Courret – Institute for Integrative Biology of the Cell 7398 39
Reposted by Cécile CourretGenetics Society of America @genetics-gsa.bsky.social · 16/07/2025📢 Call for Papers! #GENETICS and #G3journal invite submissions on selfish genetic elements—from meiotic drive to Wolbachia, B-chromosomes, and other inheritance systems. Empirical & theoretical work welcome! 🗓️ Deadline: October 1 🔗Learn more & submit your research: buff.ly/k8DEw2N 015 5
Reposted by Cécile Courretching-hochang.bsky.social @ching-hochang.bsky.social · 11/07/2025I’m thrilled to announce the launch of the Evolution of Chromosomes and Genomes (ECG) Lab at the Institute of Molecular Biology, Academia Sinica, Taiwan. Our lab website is now live—come check it out! sites.google.com/view/ecg-lab...sites.google.comECG LAB"The only constant in life is change." — Heraclitus Genetic conflicts — the good, the bad, and the ugly — shape our lives over time We aim to understand why even the most essential genes and chrom... 2169 16
Reposted by Cécile CourretTrends in Genetics @cp-trendsgenetics.bsky.social · 16/06/2025"Selfish B chromosome evades genome elimination" by Cécile Courret (@cecilecourret.bsky.social) This Spotlight highlights recent work by Laura Ross (@laurarossevo.bsky.social) & colleagues in GBE (@genomebiolevol.bsky.social). FREE till Aug 5th with this link: authors.elsevier.com/a/1lH50cQbJF... 079 9
Reposted by Cécile CourretTrends in Genetics @cp-trendsgenetics.bsky.social · 04/04/2025A selfish gene in Drosophila has met its match: Trailblazer. “An innovation in host responses to escalating genomic conflicts” by @emilianomarti.bsky.social & Amanda Larracuente highlights work from @peiwei-chen.bsky.social et al in PNAS. FREE till May 24 at authors.elsevier.com/a/1ktQOcQbJF... 097 9
Cécile Courret @cecilecourret.bsky.social · 10/04/2025We’re excited to feature two outstanding invited speakers: 🎤 Antoine Molaro (antoinemolaro.bsky.social) 🎤 Laura Ross (laurarossevo.bsky.social) 021 2
Cécile Courret @cecilecourret.bsky.social · 10/04/2025Join us at ESEB 2025 in Barcelona! I'm thrilled co-organize a symposium with Beatriz Navarro Domínguez (bioevolbea.bsky.social) on "Genetic conflict: Evolutionary and Genomic consequences" eseb2025.com/list-of-symp... Submit your abstracts by April 25, 2025 — don’t miss out! eseb2025.bsky.social 245 5
Cécile Courret @cecilecourret.bsky.social · 13/02/2025I am thrilled to share the news that I've been offered a Marie Skłodowska-Curie postdoc fellowship to work on genomic conflict in Drosophila #MSCA 2441 44
Reposted by Cécile CourretPLOS Biology @plosbiology.org · 16/01/2025Pericentromeric #heterochromatin clusters into chromocenters. @skrutlnize.bsky.social &co use quantitative mass spec to characterize the chromocenter proteome in multiple tissues, identifying a link between satellite DNA-binding proteins & #transposon repression🧪 @plosbiology.org plos.io/4akuNAi 11410 14
Reposted by Cécile CourretMartijn Schenkel @martijnschenkel.bsky.social · 13/01/2025Happy to announce that ESEB 2025 will feature a symposium on the evolution in and of diverse genetic systems! See eseb2025.com/list-of-symp... for more info and the full list of accepted symposia (so many cool things happening!) [1/2]eseb2025.comList of Symposia – ESEB 2025. Congress of the European Society for Evolutionary Biology. Barcelona. Spain 162 6
Reposted by Cécile CourretMartijn Schenkel @martijnschenkel.bsky.social · 09/01/2025Join us next week Thursday at 14:00 UTC for another seminar of the Internal Conflicts and Organismal Adaptation STN! John Werren and Bengt Bengtsson will discuss the early days of studying internal conflicts and selfish genetic elements. See internalconflictsstn.wordpress.com/seminars for more info.internalconflictsstn.wordpress.comSeminarsSeminar 9 John Werren (University of Rochester): Cooperating on Conflict: Selfish Genetic Elements, Heritable Microbes, and Genetic Conflicts. Bengt O. Bengtsson (Lund University): Decade… 023 3
Cécile Courret @cecilecourret.bsky.social · 21/11/2024Our new paper on the rapid evolution of centromeres in Drosophila is out! 🚀 Discover how transposable elements and satellite DNAs shape centromere dynamics and drive karyotype evolution over short timescales. @amlarracuente.bsky.social 🌟 Check it out here: journals.plos.org/plosbiology/...journals.plos.orgTurnover of retroelements and satellite DNA drives centromere reorganization over short evolutionary timescales in DrosophilaCentromeres reside in rapidly evolving, repeat-rich genomic regions, despite their essential function in chromosome segregation. This study of centromere evolution over short evolutionary timescales i... 35528 55
Reposted by Cécile CourretKarolin Luger @nucleosomepolice.bsky.social · 18/11/2024Our paper on the strange ATP-dependent chromatin remodeler Smarcad1 paper is out and freely accessible. Differential regulation of its many activities by phosphorylation. Congrats to Briana and @nhoitsma.bsky.social 🧪https://www.sciencedirect.com/science/article/pii/S0021925824023950?via%3Dihubsciencedirect.comPhosphorylation regulates the chromatin remodeler SMARCAD1 in nucleosome binding, ATP hydrolysis, and histone exchangeMaintaining the dynamic structure of chromatin is critical for regulating the cellular processes that require access to the DNA template, such as DNA … 413834 138
Reposted by Cécile CourretBarbara Mellone 🇺🇦 @centromellone.bsky.social · 18/11/2024Our paper on a centromere-enriched retroelement is out! link.springer.com/article/10.1... Congratulations to all the authors! Comments and reposts welcome and appreciated 🧬🔬link.springer.comTranscription of a centromere-enriched retroelement and local retention of its RNA are significant features of the CENP-A chromatin landscape - Genome BiologyBackground Centromeres depend on chromatin containing the conserved histone H3 variant CENP-A for function and inheritance, while the role of centromeric DNA repeats remains unclear. Retroelements are... 48045 80