Riccardo Pianezza
@rpianezza.bsky.social
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PhD student at VetMedUni Vienna. Transposable elements, bioinformatics, genome evolution
reposted by
Riccardo Pianezza
Matt Beaumont
26 days ago
Germline defence from TEs largely relies on piRNAs. Yet,
@divyaselvaraju.bsky.social
and I monitored a P-element invasion in Drosophila that was stopped by an internally deleted copy, no host intervention required!
doi.org/10.1371/jour...
Many thanks to
@rpianezza.bsky.social
&
@rokofler.bsky.social
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Rapid emergence of non-autonomous elements may stop P-element invasions in the absence of a piRNA-based host defence
Author summary Transposable elements (TEs) are short, self-replicating DNA sequences found in nearly all genomes. While they can be harmful to their hosts, many organisms have evolved defence systems,...
https://journals.plos.org/plosgenetics/article?id=10.1371/journal.pgen.1011649
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reposted by
Riccardo Pianezza
Dr. Sarah Signor
3 months ago
The work on TE invasions in D. melanogaster continues! We found three more recent invasions, one of which occurred in ~3 years worldwide. Another great collaboration with
@rpianezza.bsky.social
@rokofler.bsky.social
and others
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https://academic.oup.com/mbe/advance-article/doi/10.1093/molbev/msaf143/8157961
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reposted by
Riccardo Pianezza
Robert Kofler
3 months ago
super-happy, three TE invasions in Dmel during the last 30 years; the crazy thing - Transib1 spread in just 2-3years in global populations
academic.oup.com/mbe/advance-...
great work everyone
@rpianezza.bsky.social
@almoroscarpa.bsky.social
@signor-molevol.bsky.social
Anna Haider
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Spatio-temporal tracking of three novel transposable element invasions in Drosophila melanogaster over the last 30 years
Abstract. Transposable elements (TEs) are repetitive sequences capable of mobilizing within genomes, exerting a sigfinificant influence on evolution throug
https://academic.oup.com/mbe/advance-article/doi/10.1093/molbev/msaf143/8157961
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Our new preprint is out! We explored the biogeographic origins of TEs in the D. melanogaster genome. Most TEs were recently acquired via horizontal transfer, mainly from Afrotropical Drosophila species. Surprisingly, all African drosophilids share some of these TEs!
www.biorxiv.org/content/10.1...
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Biogeography shapes the TE landscape of Drosophila melanogaster
The abundance and composition of transposable elements (TEs) varies widely across species, yet the evolutionary forces shaping this diversity remain poorly understood. Using 285 recently published gen...
https://www.biorxiv.org/content/10.1101/2025.05.22.655554v1
4 months ago
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