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Identifier 000440919
Title Genome analysis of Lagocephalus sceleratus : Unraveling the genomic aspects of a successful invader / Theodoros Danis.
Alternative Title Γονιδιωματική ανάλυση του είδους Lagocephalus sceleratus
Author Δάνης, Θεόδωρος
Thesis advisor Μανουσάκη, Τερέζα
Reviewer Ηλιόπουλος, Ιωάννης
Ποταμιάς, Γεώργιος
Καντεράκης, Αλέξανδρος
Abstract The Tetraodontidae family encompasses several species which attract scientific interest in terms of their ecology and evolution. However, the genomic resources and especially reference assemblies are sparse for the members of this family. The silver-cheeked toadfish (Lagocephalus sceleratus) is a well-known 'invasive sprinter' that has invaded and spread, less than a decade, throughout the Eastern and part of the Western Mediterranean Sea from the Red Sea through the Suez Canal. In this study, we focus on the construction of the first high-quality genome assembly of L. sceleratus and the exploration of its evolutionary adaptations. The resulted assembly consisted of 235 contigs (N50 = 11,3 Mb) with a total size of 360 Mb and yielded 98% BUSCO completeness. The genome possesses 21,251 predicted encoding genes with annotation of 20,578. The phylogenomic analysis positioned L. sceleratus as sister species to T. nigroviridis and gene family evolution analysis revealed rapid expansion and contraction of 28 and 13 gene families, respectively. Several genes of immune response have experienced rapid expansion, suggesting their important role in L. sceleratus’ successive colonisation. The high-quality genome assembly built here is expected to set the ground for future studies on this focal species’ invasive biology.
Language English
Subject Assembly
Issue date 2021-07-30
Collection   School/Department--School of Medicine--Department of Medicine--Post-graduate theses
  Type of Work--Post-graduate theses
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