Our latest study on this charismatic well known sort of traditional bonded species…the Italian Sea-Slater (Ligia italica) Dudu tas-sajd reveals surprising genetic diversity and distinct populations across Sicily and Malta.
The research paper “First Insights into the Mitochondrial DNA Diversity of the Italian Sea-Slater Across the Strait of Sicily” explores the genetic variation of this species, a coastal isopod, across sites in Sicily, Malta, and surrounding regions.
Using mitochondrial DNA analysis, the authors (Faraone, F. P., Vecchioni, L., Sciberras, A., Di Gangi, A., & Deidun, A.) investigate population structure and connectivity across the Strait of Sicily, a critical biogeographic barrier.
The study combines new sampling with previously published data, mapping genetic clades across a range of sites. Results highlight significant genetic diversity and distinct population clusters, suggesting limited dispersal ability and historical isolation among populations.
The work provides important baseline data for understanding evolutionary processes and the conservation of this coastal species, while demonstrating the value of integrating genetic tools for regional biodiversity assessments.
The study revealed that this species populations across Sicily, Malta, and nearby areas show high mitochondrial DNA diversity with clear genetic structuring between regions. Several distinct clades were identified, with populations on Malta and Gozo showing genetic differences from those in Sicily, reflecting limited dispersal across the Strait of Sicily.
These results suggest that the Strait acts as a biogeographic barrier, and populations are likely shaped by historical isolation and low mobility of this coastal species.
“This is the first genetic insight into L. italica in this region and provides a foundation for future phylogeographic and conservation studies. Its been a life long dream to study this charismatic yet declining species in the Maltese islands ” Arnold said.
Share this with someone who’d be interested!