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Minos transposon-mediated transgenesis in the sea urchin Paracentrotus lividus

Caccavale, F.; Annona, G.; De Luca, P.; Arnone, M.

2026-06-06 molecular biology
10.64898/2026.06.05.730382 bioRxiv
Show abstract

In the multitude of suitable experimental systems used for functional studies in the field of developmental biology, the sea urchin plays a central role due to its amenability to various methods, including both transient and stable transgenesis. Among others, transposable elements represent powerful tools for generating stable transgenic specimens, and Minos transposon turned out to be an excellent genetic tool in marine organisms, despite its efficiency being host-dependent. This study provides new evidence for the activity of Minos transposable elements and their stable integration into the genome of the Mediterranean sea urchin Paracentrotus lividus. Using the Minos-based technology coupled with a fully-automated system used for the qPCR screening of the Minos transposon integration, we devised a new pipeline for performing transgenesis-based functional studies in P. lividus.

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