. "BACKGROUND: Haloferax volcanii is an easily culturable moderate halophile that grows on simple defined media, is readily transformable, and has a relatively stable genome. This, in combination with its biochemical and genetic tractability, has made Hfx. volcanii a key model organism, not only for the study of halophilicity, but also for archaeal biology in general. METHODOLOGY/PRINCIPAL FINDINGS: We report here the sequencing and analysis of the genome of Hfx. volcanii DS2, the type strain of this species. The genome contains a main 2.848 Mb chromosome, three smaller chromosomes pHV1, 3, 4 (85, 438, 636 kb, respectively) and the pHV2 plasmid (6.4 kb). CONCLUSIONS/SIGNIFICANCE: The completed genome sequence, presented here, provides an invaluable tool for further in vivo and in vitro studies of Hfx. volcanii." . . "PLoS ONE" . "Eisen J.A." . "Pfeiffer F." . "Robinson J." . "Maupin-Furlow J." . "Ren Q." . "Badger J.H." . "Lowe T.M." . "Pohlschroder M." . "Allers T." . "Madupu R." . "Daniels C." . "Hartman A.L." . "Khouri H." . "Norais C." . "Delmas S." . "Haldenby S." . "2010"^^ . "E9605" . "The complete genome sequence of Haloferax volcanii DS2, a model archaeon." . "5" . "doi:10.1371/journal.pone.0009605" .