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Article

Metabolomic Insights into Marine Phytoplankton Diversity

1
Sorbonne Université, CNRS, Laboratoire de Biodiversité et Biotechnologie Microbiennes, LBBM, Observatoire Océanologique, 66650 Banyuls-sur-Mer, France
2
Sorbonne Université, CNRS, Biologie Intégrative des Organismes Marins, BIOM, Observatoire Océanologique, 66650 Banyuls-sur-Mer, France
*
Authors to whom correspondence should be addressed.
Mar. Drugs 2020, 18(2), 78; https://doi.org/10.3390/md18020078
Received: 30 November 2019 / Revised: 10 January 2020 / Accepted: 22 January 2020 / Published: 25 January 2020
(This article belongs to the Special Issue Marine Microbial Diversity as a Source of Bioactive Natural Products)
The democratization of sequencing technologies fostered a leap in our knowledge of the diversity of marine phytoplanktonic microalgae, revealing many previously unknown species and lineages. The evolutionary history of the diversification of microalgae can be inferred from the analysis of their genome sequences. However, the link between the DNA sequence and the associated phenotype is notoriously difficult to assess, all the more so for marine phytoplanktonic microalgae for which the lab culture and, thus, biological experimentation is very tedious. Here, we explore the potential of a high-throughput untargeted metabolomic approach to explore the phenotypic–genotypic gap in 12 marine microalgae encompassing 1.2 billion years of evolution. We identified species- and lineage-specific metabolites. We also provide evidence of a very good correlation between the molecular divergence, inferred from the DNA sequences, and the metabolomic divergence, inferred from the complete metabolomic profiles. These results provide novel insights into the potential of chemotaxonomy in marine phytoplankton and support the hypothesis of a metabolomic clock, suggesting that DNA and metabolomic profiles co-evolve. View Full-Text
Keywords: chemotaxonomy; phylogeny; mamiellales; galactolipids; betaine lipids; xanthophylls chemotaxonomy; phylogeny; mamiellales; galactolipids; betaine lipids; xanthophylls
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MDPI and ACS Style

Marcellin-Gros, R.; Piganeau, G.; Stien, D. Metabolomic Insights into Marine Phytoplankton Diversity. Mar. Drugs 2020, 18, 78. https://doi.org/10.3390/md18020078

AMA Style

Marcellin-Gros R, Piganeau G, Stien D. Metabolomic Insights into Marine Phytoplankton Diversity. Marine Drugs. 2020; 18(2):78. https://doi.org/10.3390/md18020078

Chicago/Turabian Style

Marcellin-Gros, Rémy, Gwenaël Piganeau, and Didier Stien. 2020. "Metabolomic Insights into Marine Phytoplankton Diversity" Marine Drugs 18, no. 2: 78. https://doi.org/10.3390/md18020078

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