Joseph E. Peters
@JoePetersLab
Professor and Chair, Dept Microbiology Cornell Ithaca. Interested in genome evolution and mobile DNA, especially Tn7 and CRISPR-Cas transposition systems
It was a pleasure working with @PopoMicro on this review of CRISPR-Cas associated transposons (CAST). Hopefully it gives a sense for the diversity of Tn7-like transposons and CRISPR systems that independently combined.go.shr.lc/444PwFh

Transposons, or “jumping genes” – DNA segments that can move from one part of the genome to another – are key to bacterial evolution and the development of antibiotic resistance. Cornell researchers have discovered a new mechanism these genes use to survive and propagate in…
Researchers @CornellCALS and colleagues have discovered a new method that “jumping genes,” or transposons, use to survive and propagate in bacteria with linear DNA, with applications in biotechnology and drug development. @ScienceMagazine @JoePetersLab news.cornell.edu/stories/2025/0…
Very cool story lead by @JoePetersLab reveals another level of how transposons battle with their hosts. Grateful to have had a chance to participate with Popo @PopoMicro, Joe and the team!
🧬 Thrilled to share our latest research on Retrons—a new chapter in this fascinating field! 🌟In this @MolecularCell paper, we reveal how Retron-Eco1 defends against phages. bit.ly/3WOlbsY Check the 🧵below! (1/20)
#CRISPR revolutionized medicine, but where did its RNA-guided mechanisms come from? Using #AI, we unearthed new Cas13s and found they evolved from toxin-antitoxins, revealing how nature created these amazing reprogrammable molecules. Discover the recipe: doi.org/10.1016/j.cell…
Very excited about this work from graduate student Laura Chacon Machado now published in Mobile DNA, “A family of Tn7-like transposons evolved to target CRISPR repeats”!
Our preprint describing a family of Tn7-like transposons that evolved to target CRISPR repeats is now published at Mobile DNA #Tn7 #transposons #mobileDNA 1/10 mobilednajournal.biomedcentral.com/articles/10.11…
📢 Prof. Marcin Nowotny has received the Prime Minister’s Award! The prize honors his research on protein-nucleic acid interactions, advancing our understanding of cellular information decoding. 👉 Read more: tinyurl.com/MNowotnyPMAward