High-quality genome assembly and annotation of Thalassiosira rotula (synonym of Thalassiosira gravida)
Diatoms are unicellular eukaryotic microorganisms thriving in most aquatic environments thanks to the expression of biosynthetic pathways for secondary metabolites involved in defence and adaptation to environmental changes. The sequencing of the transcriptome of the cosmopolitan diatom Thalassiosira rotula Meunier 1910 (synonym of Thalassiosira gravida Cleve 1896) and of the metagenome of its associated microbiome revealed the presence of biosynthetic pathways synthesising molecules and compounds useful for the algae survival and with potential biotechnological applications. Here we present the genome of a Neapolitan T. rotula strain, which is 672 Mbp in size due to a high proportion of repetitive elements (63.59%) and segmental duplications (14%), while the number of predicted genes resulted to be comparable to that of smaller diatom genomes. DNA methylation was predominantly located in transposable elements.
Authors
- Leı̈la Tirichine (ORCID: https://orcid.org/0000-0002-9491-4414)
- Marco Di Marsico
- Luca Ambrosino (ORCID: https://orcid.org/0000-0003-1756-9538)
- Leonardo Joaquim van Zyl (ORCID: https://orcid.org/0000-0001-9364-8671)
- Panagiotis Kasapidis (ORCID: https://orcid.org/0000-0002-1538-0320)
- Valeria Di Dato (ORCID: https://orcid.org/0000-0001-9720-6619)
- Frédéric Verret (ORCID: https://orcid.org/0000-0002-8175-7325)
- Riccardo Aiese Cigliano (ORCID: https://orcid.org/0000-0002-9058-6994)
- Marco Miralto (ORCID: https://orcid.org/0000-0002-4106-4110)
- Ida Orefice (ORCID: https://orcid.org/0000-0002-5641-4662)
- Timothée Chaumier (ORCID: https://orcid.org/0009-0008-7923-1683)
- Marla Trindade (ORCID: https://orcid.org/0000-0002-2478-0270)
- Giovanna Romano (ORCID: https://orcid.org/0000-0002-4898-7153)
- Federica Di Costanzo (ORCID: https://orcid.org/0000-0002-3978-1372)
- Jon Bent Kristoffersen
Institutions
- Centre National de la Recherche Scientifique (FR)
- University of Tasmania (AU)
- SOM Biotech (Spain) (ES)
- Stazione Zoologica Anton Dohrn (IT)
- National Biodiversity Institute (CR)
- Hellenic Centre for Marine Research (GR)
- Unité en Sciences Biologiques et Biotechnologies de Nantes (FR)
- University of the Western Cape (ZA)
- Nantes Université (FR)
Publication Details
- Journal
- Scientific Data
- Published
- 2025-02-20
- DOI
- https://doi.org/10.1038/s41597-025-04634-4
- Citations
- 5
- Primary Topic
- Marine Ecology and Invasive Species
- Type
- article
- Field-Weighted Citation Impact
- 5.53
Funders
- European Commission
- General Secretariat for Research and Technology
- Ministero degli Affari Esteri e della Cooperazione Internazionale
- Hellenic Foundation for Research and Innovation
- European Regional Development Fund
- FP7 International Cooperation