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Genome watch

What a scorcher!


This month's Genome Watch looks at the publication of four hyperthermophilic archaeal genomes, three of which belong to the Crenarchaeota phylum and one of which belongs to the newly defined Nanoarchaeota phylum.

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Figure 1: Attachment of Nanoarchaeum equitans to the outer membrane of Ignicoccus hospitalis.


  1. 1

    Ravin, N. V. et al. Complete genome sequence of the anaerobic, protein-degrading hyperthermophilic crenarchaeon Desulfurococcus kamchatkensis. J. Bacteriol. 191, 2371–2379 (2009).

    CAS  Article  Google Scholar 

  2. 2

    Brügger, K. et al. The genome of Hyperthermus butylicus: a sulfur-reducing, peptide fermenting, neutrophilic Crenarchaeote growing up to 108 °C. Archaea 2, 127–135 (2007).

    Article  Google Scholar 

  3. 3

    Podar, M. et al. A genomic analysis of the archaeal system Ignicoccus hospitalis–Nanoarchaeum equitans. Genome Biol. 9, R158 (2008).

    Article  Google Scholar 

  4. 4

    Waters, E. et al. The genome of Nanoarchaeum equitans: insights into early archaeal evolution and dereived parasitism. Proc. Natl Acad. Sci. USA 100, 12984–12988 (2003).

    CAS  Article  Google Scholar 

  5. 5

    Jahn, U. et al. Nanoarchaeum equitans and Ignicoccus hospitalis: new insights into a unique, intimate association of two archaea. J. Bacteriol. 190, 1743–1750 (2008).

    CAS  Article  Google Scholar 

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Entrez Genome

Desulfurococcus kamchatkensis

Hyperthermus butylicus

Ignicoccus hospitalis

Nanoarchaeum equitans

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Cerdeño-Tárraga, A. What a scorcher!. Nat Rev Microbiol 7, 408–409 (2009).

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