Marine DNA Viral Macro- and Microdiversity from Pole to Pole

Tara Oceans Coordinators

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

Microbes drive most ecosystems and are modulated by viruses that impact their lifespan, gene flow, and metabolic outputs. However, ecosystem-level impacts of viral community diversity remain difficult to assess due to classification issues and few reference genomes. Here, we establish an ∼12-fold expanded global ocean DNA virome dataset of 195,728 viral populations, now including the Arctic Ocean, and validate that these populations form discrete genotypic clusters. Meta-community analyses revealed five ecological zones throughout the global ocean, including two distinct Arctic regions. Across the zones, local and global patterns and drivers in viral community diversity were established for both macrodiversity (inter-population diversity) and microdiversity (intra-population genetic variation). These patterns sometimes, but not always, paralleled those from macro-organisms and revealed temperate and tropical surface waters and the Arctic as biodiversity hotspots and mechanistic hypotheses to explain them. Such further understanding of ocean viruses is critical for broader inclusion in ecosystem models.

Original languageEnglish
Pages (from-to)1109-1123.e14
JournalCell
Volume177
Issue number5
DOIs
Publication statusPublished - 2019

Keywords

  • viruses
  • metagenomics
  • community ecology
  • population ecology
  • species
  • marine biology
  • diversity gradients

Fingerprint

Dive into the research topics of 'Marine DNA Viral Macro- and Microdiversity from Pole to Pole'. Together they form a unique fingerprint.

Cite this