...system, for Halobacterium NRC-1 and related halophiles ( DasSarma et al. 1995 ; Peck et al. 2000 ). The of Halobacterium NRC-1 consists of three replicons, a large chromosome of 2 Mb and two smaller replicons, pNRC200 and pNRC100, about 365 kb and 191 kb, respectively, proposed to be minichromosomes...