Профиль

Lewis Stevens

I like worms, genomes, & evolution. Postdoc in Tree of Life @ Wellcome Sanger Institute. He/him.

602 подписчиков339 подписок3 постов
Публикации
⟳ Репост от Lewis Stevens
Arif M

Very excited to see the first chapter of my PhD out on bioRxiv! It began as a rotation project and became a pivotal part of my PhD on beetles, adding a complementary macroevolutionary perspective to my second chapter on early-stage speciation in Indonesian herbivorous ladybird beetles.

bioRxiv Evolutionary Biology

338 coleopteran genomes reveal exceptional rearrangement variation compared to other insect orders https://www.biorxiv.org/content/10.64898/2026.07.17.739156v1

⟳ Репост от Lewis Stevens
Carmen Denman Hume

Huzzah! Today begins the Big Butterfly Count, a huge effort to collect data by @savebutterflies.bsky.social. Need help understanding why study butterflies? I interviewed @charlottewright.bsky.social co-lead of @projectpsyche.bsky.social and learned heaps. sangerinstitute.blog/2025/12/11/f...

Five questions on butterfly and moth genomics with Charlotte Wright - Wellcome Sanger Institute BlogDrawn to genomics like a moth to a flame, Wellcome Sanger Institute Postdoctoral Fellow, Dr Charlotte Wright, shares with us how she uses genomics to shed light on the evolutionary history of butterfl...sangerinstitute.blog
⟳ Репост от Lewis Stevens
Carmen Denman Hume

I can't resist sharing this wonderfully wormy blog about helminths of all sorts. My all-time favourite course in undergrad was one term of parisitology - so gross but so cool. 💩 Featuring @phylewgenetics.bsky.social and @stephenrdoyle.bsky.social 's research group this was well worth a read!

Wellcome Sanger Institute

Parasitic worms might not be cute, but they are fascinating. From global health impacts to cutting-edge genomics, we explore why helminths matter more than you think. Read more 👉 https://sangerinstitute.blog/2026/03/17/what-the-hel-minth/

Lewis Stevens

New preprint! We unexpectedly discovered that some Caenorhabditis species delete parts of their somatic genome early in development, which fragments their chromosomes and eliminates key germline genes. Multiple lines of evidence suggest this bizarre process was present in the ancestors of C. elegans

bioRxivpreprint

Programmed DNA elimination was present in the last common ancestor of Caenorhabditis nematodes https://www.biorxiv.org/content/10.1101/2025.10.23.681605v1

⟳ Репост от Lewis Stevens
Amjad Khalaf 🇵🇸

Really, really happy that our work on microsporidian genomes is now out in @plosbiology.org! A huge thank you to my coauthors, my supervisors @mblaxter.bsky.social & @marakat.bsky.social, the editors @roliroberts.bsky.social & Joseph Heitman, and the reviewers ❤️ plos.io/48HsAQJ

Forty new genomes shed light on sexual reproduction and the origin of tetraploidy in MicrosporidiaMicrosporidia are single-celled, intracellular parasites of growing public health, agricultural, and economic importance. This study presents 40 new microsporidian genomes derived collaterally from Da...plos.ioPLOS Biology

#Microsporidia are #parasites of growing importance. ‪@amjadkhalaf.bsky.social‬ ‪@mblaxter.bsky.social @marakat.bsky.social &co present 40 new genomes from #DarwinTreeofLife sequencing of their arthropod hosts, revealing insights into #tetraploidy & #reproduction @plosbiology.org 🧪 plos.io/48HsAQJ

⟳ Репост от Lewis Stevens
Current Biology

Which journal would publish such a fragmented mess? www.cell.com/current-biol...

Constraints on chromosome evolution revealed by the 229 chromosome pairs of the Atlas blue butterflyThe genome of the Atlas blue butterfly contains ten times more chromosomes than most butterflies, and more than any other known diploid animal. Wright et al. show that this extraordinary karyotype is ...www.cell.comErol Akcay

Most chromosomes of any animal on Earth so far!

⟳ Репост от Lewis Stevens
Marcela Uliano-Silva

Preprint Alert! 🦥 We produced complete genomes for 2 Xenarthra and placed them in a mammalian comparative framework. We found that Xenarthra harbour the largest number of retrocopies in mammals! www.biorxiv.org/content/10.1...

Retrocopy formation and domestication shape genome evolution in sloths and other xenarthransXenarthrans, comprising sloths, anteaters, and armadillos, represent one of the most morphologically and physiologically specialised mammalian clades, yet the genomic basis of their adaptations remain...www.biorxiv.org
⟳ Репост от Lewis Stevens
Charlotte Wright

How many chromosomes can an animal have? In our paper out now in @currentbiology.bsky.social we show that the Atlas blue butterfly has 229 chromosome pairs- the highest in diploid Metazoa! These arose by rapid autosome fragmentation while sex chromosomes stayed intact. www.cell.com/current-biol...

Constraints on chromosome evolution revealed by the 229 chromosome pairs of the Atlas blue butterflyThe genome of the Atlas blue butterfly contains ten times more chromosomes than most butterflies, and more than any other known diploid animal. Wright et al. show that this extraordinary karyotype is ...tinyurl.com
⟳ Репост от Lewis Stevens
Matt Rockman

That is, Oceania looks like a source for Asian species, not the reverse! Here’s the preprint.

Caenorhabditis diversity on Pohnpei, Micronesia, provides evidence that the Elegans Supergroup has its roots in the Americas and diversified in the Pacific en route to AsiaThe microscopic nematode Caenorhabditis elegans stands unrivaled as a model for developmental biology, neurobiology, and genetics, but fundamental aspects of its ecology, biogeography, and natural his...www.biorxiv.org
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