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Single-cell-resolved genome atlas of prokaryoplankton inhabiting the ocean's interior

  • Tianyi Chang
  • , Maria G Pachiadaki
  • , Gregory S Gavelis
  • , Nicole J Poulton
  • , Brian Thompson
  • , Corianna Mascena
  • , Keir Macartney
  • , Julia M Brown
  • , James J La Clair
  • , Alaina R Weinheimer
  • , Taichi Yokokawa
  • , Paula Ruiz-Fernández
  • , Julia Anstett
  • , Paul M Berube
  • , Steven J Biller
  • , Beth N Orcutt
  • , Federico Baltar
  • , Michael D Burkart
  • , Steven J Hallam
  • , Klaus Jürgens
  • Osvaldo Ulloa, Takuro Nunoura, Eva Sintes, Gerhard J Herndl, Ramunas Stepanauskas

Publications: Contribution to journal › Article › Peer Reviewed

Abstract

The ocean's aphotic interior harbors three-quarters of planktonic bacteria and archaea (prokaryoplankton), whose composition, ecology, and biotechnological potential remain poorly constrained. To address this knowledge gap, we created Global Oceans Reference Genomes (GORG)-Dark, a dataset of 9,698 genomes from individual prokaryoplankton cells sampled unselectively across a broad range of depths, geographic locations, and environmental conditions below the ocean's photic surface. Biogeographic analyses revealed prokaryoplankton vertical stratification extending to abyssal depths, the presence of particle-attached lineages of Pelagibacterales, and the previously overlooked abundance of Patescibacteria and Nanoarchaeota in the Baltic and Black Seas. We identified coding potential for chemolithoautotrophy, pharmacologically relevant secondary metabolisms, and a distinct type of proteorhodopsins in prokaryoplankton lineages prevalent throughout the aphotic ocean. This study offers a quantitative, global assessment of the composition and coding potential of microorganisms inhabiting the vast ocean's interior and contributes an extensive, single-cell-resolved dataset to microbial oceanography's cyberinfrastructure.

Original languageEnglish
JournalCell
DOIs
Publication statusE-pub ahead of print - 15 Sept 2026

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 14 - Life Below Water
    SDG 14 Life Below Water

Austrian Fields of Science 2012

  • 106021 Marine biology

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