Yann Guiguen
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yannguiguen.bsky.social
Yann Guiguen
@yannguiguen.bsky.social
Fish genome and sex determination evolution (genomes, sex chromosomes and sex determining genes). Fond of neotropical 🍍🦜🌴🌺 fishes 🐠🐠🐠 especially Characiforms | INRAE | LPGP | Rennes | France |
Reposted by Yann Guiguen
Back from the Cavefish Retreat — amazing people, gorgeous location, great science, and a strong community! 🐟✨

The future looks bright for the #cavefish field!
September 17, 2025 at 3:38 PM
Reposted by Yann Guiguen
I’m currently presenting my poster at #SMBE2025
Poster ID: S2-P05
Topic: Sex chromosome evolution in Australian burrowing frogs Neobatrachus 🐸
Would love to discuss with anyone interested, come by if you’re around! @stevedonnellan.bsky.social , Scott Edwards suggested I send you our photo together 😊
July 21, 2025 at 3:59 AM
Reposted by Yann Guiguen
Excited to share our new paper in #MolEcol on sex chromosome evolution in African killifish! 🐟 A great collaboration with @alexandrsember.bsky.social . We uncovered ≥4 sex chromosome turnovers across Nothobranchius spp. using cytogenetics & genomics.
👉 onlinelibrary.wiley.com/doi/10.1111/...
July 24, 2025 at 9:36 AM
Reposted by Yann Guiguen
🧬 Today starts the most relevant event in evolutionary biology: the European Society for Evolutionary Biology (ESEB) Congress (@eseb2025.bsky.social @eseb.bsky.social).

🔝 #IRBBarcelona's group leader @tonigabaldon.bsky.social is the chair of this major event that will gather +1900 participants.

👇
The CCIB will welcome over 1,900 scientists to explore the origin and evolution of life - CCIB
Barcelona to host the Leading Event in Evolutionary Biology ESEB 2025
ccib.es
August 18, 2025 at 11:00 AM
Reposted by Yann Guiguen
Mike Ritchie emphasising the huge importance of supporting society journals like JEB in his ESEB presidential address, Barcelona. @eseb.bsky.social @eseb2025.bsky.social
August 22, 2025 at 1:58 PM
Reposted by Yann Guiguen
This is a big innovation for #eseb2027 not without it's challenges (time zones, currencies, technical delays...) but with potentially HUGE savings in terms of carbon footprint. So well done @eseb.bsky.social, let's embrace the experiment and make the hub concept a success!

#eseb2025
Aurelien Tellier presenting the details of #eseb2027 which will be a hub meeting, with connected and local sessions in 4 hubs (Gothenburg, Munich, London, Istanbul) eseb2027.org #eseb2025
August 22, 2025 at 1:19 PM
Reposted by Yann Guiguen
Few months ago I commissioned artist @hidet0shi.bsky.social a drawing of the Antarctic dragonfish we described last year, with if possible both the fish and the RV Laurence M Gould as the fish was named after the ship: Akarotaxis gouldae!

It turned out so beautiful I made stickers out it!
🧪🌎🐟🧊🇦🇶
August 25, 2025 at 3:45 PM
Reposted by Yann Guiguen
It was a pleasure to collaborate again with Florence and the Guppie group from @umr-gabi.bsky.social in France where I did my Phd and a postdoc, and with @yannguiguen.bsky.social from Rennes who was a partner in the first project as well (NeoBio)
Hope you enjoy reading the paper
May 8, 2025 at 10:45 AM
End of my field trip in French Guiana. Too bad 😩. Sampling for a genome project (AtlasG2P) and a sex chromosome evolution project (CharaSex) on Characoidei fishes 🐟🐠.
March 23, 2025 at 2:04 PM
Reposted by Yann Guiguen
“Love at first bite?”

Deep-sea anglerfish female (right) and parasitic male (left)
February 14, 2025 at 6:03 PM
Reposted by Yann Guiguen
Anemonefish use sialic acid metabolism as Trojan horse to avoid giant sea anemone stinging | BMC Biology | Full Text
Anemonefish use sialic acid metabolism as Trojan horse to avoid giant sea anemone stinging - BMC Biology
Background Anemonefish association with sea anemones is a prime example of mutualistic symbiosis. These fish live inside the sea anemone, benefitting from the protection of its toxic nematocysts, and…
buff.ly
February 16, 2025 at 5:57 PM
Reposted by Yann Guiguen
🎥 Plongez au cœur de la science avec “Les pêcheurs d’ADN” ! Découvrez comment l’équipe d’ATLASea a prélevé les échantillons des espèces marines lors de la mission à Dinard de cet été pour révéler la biodiversité cachée des océans. 🌊🔬
➡️ À voir ici : lejournal.cnrs.fr/videos/les-p...
Les pêcheurs d’ADN
Séquencer le génome de 4 500 espèces marines, c’est l’objectif du programme de recherche ATLASea dont la première expédition a eu lieu à Dinard, en Bretagne. Pendant huit ans, les scientifiques vont c...
lejournal.cnrs.fr
November 22, 2024 at 9:36 AM
Reposted by Yann Guiguen
soo excited to share my latest paper & illustration~ a sturgeon meta analysis evaluating thermal tolerance where we asked can sturgeon handle climate warming? Unfortunately we found that physiological impacts across life stages limits ecological success 🧪👩🏻‍🔬🐠🌎🐡

onlinelibrary.wiley.com/doi/10.1111/...
November 20, 2024 at 4:39 PM
Reposted by Yann Guiguen
This short graphic novel about Fish Sex Determination from Sophia Breslin, John Postlethwait, & Thomas Desvignes @notothentoma.bsky.social is AMAZING!
blogs.uoregon.edu/fishsexdeter...
🧪🐠🧬
June 10, 2024 at 4:38 PM
Reposted by Yann Guiguen
The time has come... Share to Bluesky 🏺🧪
November 18, 2024 at 6:00 PM
Reposted by Yann Guiguen
Our new paper on sexual antagonism in sequential hermaphrodites has now been published! royalsocietypublishing.org/doi/full/10....
November 22, 2023 at 6:31 AM
Reposted by Yann Guiguen
I have been conducting my dissertation fieldwork in the #ponds at the wonderful Seven Sisters Country Park, UK. Part of the #SouthDownsNationalPark, we found lots of #freshwater inverts (including this incredible #soldierfly larvae), newt efts, and even some #fish (stickleback sp.) in one pond 🪲
November 18, 2024 at 8:29 AM
Reposted by Yann Guiguen
No surprise: AI in genome studies is running into problems like biases and false positives, often due to incomplete or unbalanced datasets.

So, what can be done? 🧪🧵

www.the-scientist.com/ai-assisted-...
AI-Assisted Genome Studies Are Riddled with Errors
Researchers used artificial intelligence in large genomics studies to fill in gaps in patient information and improve predictions, but new research uncovers false positives and misleading correlations...
www.the-scientist.com
November 16, 2024 at 6:29 AM
Reposted by Yann Guiguen
Discover #ATLASea, a #France2030 research programme to build an atlas of marine genomes. First step, sampling marines species #DIVE-Sea, then sequencing their genomes #SEQ-Sea and managing all the data #BYTE-Sea.
EN : youtu.be/3Sg9o_8Uk6M
FR: www.youtube.com/watch?v=sl9o...
ATLASea research programme: an atlas of marine genomes
YouTube video by ATLASea
youtu.be
November 15, 2024 at 1:45 PM
Reposted by Yann Guiguen
B chromosome and its non-Mendelian inheritance in Atractylodes lancea https://www.biorxiv.org/content/10.1101/2024.05.27.595828v1
B chromosome and its non-Mendelian inheritance in Atractylodes lancea https://www.biorxiv.org/content/10.1101/2024.05.27.595828v1
Supernumerary B chromosomes contribute to intraspecific karyotypic variation. B chromosomes have bee
www.biorxiv.org
June 2, 2024 at 3:32 AM
Reposted by Yann Guiguen
Helped name an asteroid ‘Cavefish’ to honor and raise awareness about the 200 or so species of small, eyeless and usually pigmentless subterranean fishes

www.lsu.edu/science/bios...
Newly Named "Cavefish" Asteroid Honors Hidden Creatures Swimming in the Depths of Earth
www.lsu.edu
November 12, 2024 at 6:06 PM
Reposted by Yann Guiguen
Evolutionary history of the grape sex-determining region in angiosperms and emergence of dioecy in Vitaceae https://www.biorxiv.org/content/10.1101/2024.11.10.622717v1
Evolutionary history of the grape sex-determining region in angiosperms and emergence of dioecy in Vitaceae https://www.biorxiv.org/content/10.1101/2024.11.10.622717v1
Dioecy, defined by the presence of either female or male flowers on separate individual plants, is r
www.biorxiv.org
November 11, 2024 at 7:33 PM
Reposted by Yann Guiguen
As I’m gearing up for another week in the field, I’m still digesting our recent visit to Mexico. So many good memories with a great team. But seeing the same sites for 20 years, there was also a brutal reality of a changing climate and human activities encroaching on the last bits of wilderness…
July 6, 2024 at 3:56 AM