Figure 1: Chromosomal distribution of Thermoplasma ORFs most similar to Sulfolobus (top panel), and of ORFs found in conserved gene clusters (bottom panel).
From: The genome sequence of the thermoacidophilic scavenger Thermoplasma acidophilum

ORFs were considered to occur in a conserved cluster if their chromosomal vicinity was also observed in at least 1 of 13 complete reference genomes (6 archaeal, 7 bacterial; see Methods). The approximate locations of proteins most similar between Thermoplasma and Sulfolobus mentioned in the text are indicated in the top panel.