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Title: Major bacterial lineages are essentially devoid of CRISPR-Cas viral defence systems

Journal Article · · Nature Communications
DOI:https://doi.org/10.1038/ncomms10613· OSTI ID:1469126
 [1];  [2]; ORCiD logo [3];  [1];  [1];  [1];  [1];  [4]
  1. Univ. of California, Berkeley, CA (United States). Dept. of Earth and Planetary Science
  2. Univ. of California, Berkeley, CA (United States). Dept. of Earth and Planetary Science; Stanford Univ., CA (United States). Dept. of Microbiology and Immunology
  3. Univ. of California, Berkeley, CA (United States). Dept. of Plant and Microbial Biology
  4. Univ. of California, Berkeley, CA (United States). Dept. of Earth and Planetary Science and Dept. of Environmental Science, Policy and Management

Here, current understanding of microorganism–virus interactions, which shape the evolution and functioning of Earth’s ecosystems, is based primarily on cultivated organisms. Here we investigate thousands of viral and microbial genomes recovered using a cultivation independent approach to study the frequency, variety and taxonomic distribution of viral defence mechanisms. CRISPR-Cas systems that confer microorganisms with immunity to viruses are present in only 10% of 1,724 sampled microorganisms, compared with previous reports of 40% occurrence in bacteria and 81% in archaea. We attribute this large difference to the lack of CRISPR-Cas systems across major bacterial lineages that have no cultivated representatives. We correlate absence of CRISPR-Cas with lack of nucleotide biosynthesis capacity and a symbiotic lifestyle. Restriction systems are well represented in these lineages and might provide both non-specific viral defence and access to nucleotides.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States); University of California, Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Biological and Environmental Research (BER)
Grant/Contract Number:
AC02-05CH11231; SC0004918
OSTI ID:
1469126
Alternate ID(s):
OSTI ID: 1253373
Journal Information:
Nature Communications, Vol. 7; ISSN 2041-1723
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 131 works
Citation information provided by
Web of Science

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Biosynthetic capacity, metabolic variety and unusual biology in the CPR and DPANN radiations journal September 2018
Comparative genomics and genome biology of Campylobacter showae journal January 2019
A matter of background: DNA repair pathways as a possible cause for the sparse distribution of CRISPR-Cas systems in bacteria journal March 2019
Metagenomic analysis with strain-level resolution reveals fine-scale variation in the human pregnancy microbiome posted_content August 2018
Metagenomic analysis with strain-level resolution reveals fine-scale variation in the human pregnancy microbiome journal September 2018
Anti‐CRISPR proteins targeting the CRISPR‐Cas system enrich the toolkit for genetic engineering journal November 2019
Adapting Drug Approval Pathways for Bacteriophage-Based Therapeutics journal August 2016
CRISPR-Cas Systems Features and the Gene-Reservoir Role of Coagulase-Negative Staphylococci journal August 2017
Microbial metabolisms in a 2.5-km-deep ecosystem created by hydraulic fracturing in shales journal September 2016
Evolutionary classification of CRISPR–Cas systems: a burst of class 2 and derived variants journal December 2019
Atypical organizations and epistatic interactions of CRISPRs and cas clusters in genomes and their mobile genetic elements journal November 2019
The effect of bacterial mutation rate on the evolution of CRISPR-Cas adaptive immunity journal March 2019
The ecology and evolution of microbial CRISPR-Cas adaptive immune systems journal March 2019
Co-occurrence of multiple CRISPRs and cas clusters suggests epistatic interactions posted_content March 2019
Tissue- and population-level microbiome analysis of the wasp spider Argiope bruennichi identifies a novel dominant bacterial symbiont posted_content November 2019
Unusual Metabolism and Hypervariation in the Genome of a Gracilibacterium (BD1-5) from an Oil-Degrading Community journal November 2019
Phylogenomics of Cas4 family nucleases journal November 2017
Small and mighty: adaptation of superphylum Patescibacteria to groundwater environment drives their genome simplicity journal April 2020
Genus-wide comparison of Pseudovibrio bacterial genomes reveal diverse adaptations to different marine invertebrate hosts journal May 2018
An Enrichment of CRISPR and Other Defense-Related Features in Marine Sponge-Associated Microbial Metagenomes journal November 2016
Bacteriophages and Bacterial Plant Diseases journal January 2017
Bacterial and Archaeal Viruses of Himalayan Hot Springs at Manikaran Modulate Host Genomes journal December 2018
Reconstructing the functions of endosymbiotic Mollicutes in fungus-growing ants journal November 2018
New CRISPR–Cas systems from uncultivated microbes journal December 2016
The enigmatic archaeal virosphere journal November 2017
Visualization and prediction of CRISPR incidence in microbial trait-space to identify drivers of antiviral immune strategy journal June 2019
Long-term genomic coevolution of host-parasite interaction in the natural environment posted_content January 2017
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Insights Obtained by Culturing Saccharibacteria With Their Bacterial Hosts journal February 2020
A functional type II-A CRISPR-Cas system from Listeria enables efficient genome editing of large non-integrating bacteriophage text January 2018
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Measurement of bacterial replication rates in microbial communities journal November 2016
Systematic prediction of functionally linked genes in bacterial and archaeal genomes journal September 2019
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CRISPRdisco: An Automated Pipeline for the Discovery and Analysis of CRISPR-Cas Systems journal April 2018
CRISPR-Cas Defense System and Potential Prophages in Cyanobacteria Associated with the Coral Black Band Disease journal December 2016
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