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Gustavo Sanchez

@cephagus.bsky.social
74 followers 117 following 8 posts

Cephalopods biodiversity, population genetics and genomics

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Reposted by Gustavo Sanchez
Olivia V. Ambrogio (she/her) @squidfan.bsky.social · 07/06/2026
I had forgotten about this drawing 🐡
Digital illustration of four cephalopods in a line. Text below says “squid row.”
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Reposted by Gustavo Sanchez
Chema Martin @chemamd.bsky.social · 19/05/2026
🚨 We discovered a new mode of Hox gene regulation in annelids! 🪱 A distal enhancer acts as a "global control region", lifting Hox genes from Polycomb repression. This is reminiscent of Hox gene control in vertebrates, but the two modes likely evolved convergently. www.biorxiv.org/content/10.6...
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Reposted by Gustavo Sanchez
Pável Matos @pavelmatosm.bsky.social · 30/04/2026
Please share: last week to apply for a PhD position on comparative and population genomics in high elevation butterflies 🦋
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Reposted by Gustavo Sanchez
S.S. Julian @octopolis.bsky.social · 24/04/2026
Did I have many important things to do this afternoon? Yes. Did I spend it drawing Nanimoteuthis haggarti? Also yes. 🐙🦑 #sciart
A digital illustration of red and yellow nanaimoteuthis haggarti predating a blue mosasaur, by SS Julian. Watermark reads octopoliscomic.com
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Reposted by Gustavo Sanchez
Nature Portfolio @natureportfolio.nature.com · 15/04/2026
An analysis in Nature Health reveals spatial patterns of pesticide exposure and liver tissue-derived molecular signatures across Peru, establishing links between pesticide usage and cancer insurgence at the national scale. go.nature.com/41hOBAK 🧪
This is figure 1, which shows a high-resolution environmental model of pesticide risk across Peru, designed to support spatial cancer epidemiology.
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Reposted by Gustavo Sanchez
OIST (Okinawa Institute of Science and Technology) @oistedu.bsky.social · 31/03/2026
Limited fossil records and genomic information has made it difficult to determine the evolutionary history of squid and cuttlefish, until now. Published in @natecoevo.nature.com, @cephagus.bsky.social and team identify the ‘long fuse’ that led to today’s diversity: www.oist.jp/news-center/...
oist.jp
100 million years ago, an ‘evolutionary fuse’ was lit in the deep ocean, sparking squid diversification
New evolutionary mapping suggests deep sea origins and mass extinction triggered diversification of modern squid and cuttlefish.
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Reposted by Gustavo Sanchez
Nicholas Bellono @nbellono.bsky.social · 02/04/2026
Pablo Villar et al discover male octopus mating arms are sensory organs used to find females, navigate internally to the oviduct & deliver sperm. From behavior to structure, these findings offer a framework for how sensory systems shape reproduction & species barriers www.science.org/doi/10.1126/...
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Gustavo Sanchez @cephagus.bsky.social · 30/03/2026
Our new paper on squid and cuttlefish evolution is out in @natecoevo.nature.com : www.nature.com/articles/s41... /1
nature.com
Rapid mid-Cretaceous diversification of squid and cuttlefish preceded radiation into coastal niches - Nature Ecology & Evolution
Phylogenomic analyses of newly sequenced and published decapodiform cephalopods separate open-ocean and coastal shallow-water clades, following rapid cladogenesis from the mid-Cretaceous.
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Reposted by Gustavo Sanchez
Keishu Asada @cephwarden.bsky.social · 05/03/2026
This curious worm uprooted itself from the sand like a carrot being pulled up by an invisible person, and rolled around in the current for a bit before starting to dig itself back in. You can see the sand grains slowly traveling over some mucous layer as it slowly reverses into the sand.
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Reposted by Gustavo Sanchez
Keishu Asada @cephwarden.bsky.social · 12/02/2026
The so-called Pikachu nudibranch (Thecacera pacifica) going about its business
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