Holistic view of the seascape dynamics and environment impact on macro-scale genetic connectivity of marine plankton populations ...

• Main Authors: Laso-Jadart, Romuald, O’Malley, Michael, Sykulski, Adam M., Ambroise, Christophe, Madoui, Mohammed-Amin
• Format: Article in Journal/Newspaper
• Language: unknown
• Published: figshare 2023
• Subjects: Genetics; FOS Biological sciences; Oceanography; FOS Earth and related environmental sciences; Southern Ocean
• Online Access: https://dx.doi.org/10.6084/m9.figshare.c.6817415.v1; https://springernature.figshare.com/collections/Holistic_view_of_the_seascape_dynamics_and_environment_impact_on_macro-scale_genetic_connectivity_of_marine_plankton_populations/6817415/1

Abstract Background Plankton seascape genomics studies have revealed different trends from large-scale weak differentiation to microscale structures. Previous studies have underlined the influence of the environment and seascape on species differentiation and adaptation. However, these studies have generally focused on a few single species, sparse molecular markers, or local scales. Here, we investigated the genomic differentiation of plankton at the macro-scale in a holistic approach using Tara Oceans metagenomic data together with a reference-free computational method. Results We reconstructed the FST-based genomic differentiation of 113 marine planktonic taxa occurring in the North and South Atlantic Oceans, Southern Ocean, and Mediterranean Sea. These taxa belong to various taxonomic clades spanning Metazoa, Chromista, Chlorophyta, Bacteria, and viruses. Globally, population genetic connectivity was significantly higher within oceanic basins and lower in bacteria and unicellular eukaryotes than in ...