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It's hip to be square!


Archaea were only discovered in the late 1970s and remain by far the least studied of the three domains of life. Traditionally denoted extremophiles, archaea have since been found in diverse habitats. In this month's Genome Watch we review a selection of recent archaeal genome papers that illustrate how some of these species thrive in different environments.

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    Bolhius H. et al. The genome of the square archaeon Haloquadratum walsbyi: life at the limits of water activity. BMC genomics 7, 169 (2006).

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    Falb et al. Living with two extremes: Conclusions from the genome sequence of Natronomonas pharonis. Genome Research 15, 1136–1343 (2007).

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    Erkel, C. et al. Genome of Rice Cluster I archaea — the key methane producers in the rice rhizosphere. Science 313, 370–372 (2006).

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    Smith, K. S. & Ingram-Smith, C. Methanosaeta, the forgotten methanogen? Trends Microbiol. 15, 150–155 (2007).

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    Galagan, J. E. et al. The genome of M. acetivorans reveals extensive metabolic and physiological diversity. Genome Res. 12, 532–542 (2002).

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    Deppenmeier, U. et al. The genome of Methanosarcina mazei: evidence for lateral gene transfer between bacteria and archaea. J. Mol. Microbiol. Biotechnol. 4, 453–461 (2002).

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Entrez Genome Project

Haloquadratum walsbyi

Methanosaeta thermophila

Methanosarcina acetivorans

Methanosarcina mazei

Natronomonas pharonis

Saccharomyces cerevisiae

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Crossman, L., Walker, A. It's hip to be square!. Nat Rev Microbiol 5, 400–401 (2007).

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