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Expanding the genomic encyclopedia of Actinobacteria with 824 isolate reference genomes

Journal Article · · Cell Genomics
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  1. USDOE Joint Genome Institute (JGI), Berkeley, CA (United States)
  2. Leibniz Inst. DSMZ (Germany)
  3. Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
  4. USDOE Joint Genome Institute (JGI), Berkeley, CA (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
  5. Resphera Biosciences, Baltimore, MD (United States)
  6. China General Microbiological Culture Collection Center, Beijing (China)
  7. Russian Academy of Sciences (RAS) (Russian Federation)
  8. Hasselt Univ., Diepenbeek (Belgium)
  9. USDOE Joint Genome Institute (JGI), Berkeley, CA (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States); Hokkaido Univ. (Japan)
  10. Univ. of Georgia, Athens, GA (United States)
  11. Newcastle University, Newcastle upon Tyne (United Kingdom)

The phylum Actinobacteria includes important human pathogens like Mycobacterium tuberculosis and Corynebacterium diphtheriae and renowned producers of secondary metabolites of commercial interest, yet only a small part of its diversity is represented by sequenced genomes. Here, we present 824 actinobacterial isolate genomes in the context of a phylum-wide analysis of 6,700 genomes including public isolates and metagenome-assembled genomes (MAGs). We estimate that only 30%–50% of projected actinobacterial phylogenetic diversity possesses genomic representation via isolates and MAGs. A comparison of gene functions reveals novel determinants of host-microbe interaction as well as environment-specific adaptations such as potential antimicrobial peptides. We identify plasmids and prophages across isolates and uncover extensive prophage diversity structured mainly by host taxonomy. Analysis of >80,000 biosynthetic gene clusters reveals that horizontal gene transfer and gene loss shape secondary metabolite repertoire across taxa. Our observations illustrate the essential role of and need for high-quality isolate genome sequences.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Biological and Environmental Research (BER). Biological Systems Science (BSS); USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities (SUF); USDOE Joint Genome Institute (JGI); USDOE Joint Genome Institute (JGI); USDOE Joint Genome Institute (JGI); USDOE Joint Genome Institute (JGI); USDOE Joint Genome Institute (JGI); USDOE Joint Genome Institute (JGI)
Grant/Contract Number:
AC02-05CH11231; SC0018260
OSTI ID:
2475937
Journal Information:
Cell Genomics, Journal Name: Cell Genomics Journal Issue: 12 Vol. 2; ISSN 2666-979X
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

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