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Haloquadratum walsbyi : Limited Diversity in a Global Pond

Figure 1

Features of the strain C23T chromosome.

The constant horizontal axis in all cases is the genome from left to right (first to last base of deposited sequence), with a scale given in Mbp. From top to bottom are plots of: (a) %G+C if the deviation for a 1 kb window is more than 2.5 SD from the average, (b) protein-coding pseudogenes (vertical triangles), excluding those of transposases, (c) variation in tetramer nucleotide composition (TETRA), where darker colors indicated more prominent deviation, (d) GC-profile, (e) cumulative GC-skew, (f) positions and orientations of the following gene categories: CDC6, orc1/cdc6 homologues; tRNA, transfer RNA genes; rRNA, ribosomal RNA operons; r-Prot, ribosomal protein genes; RNAP, RNA polymerase subunit genes; CRISPR, loci of clustered regularly interspersed short palindromic repeats. Smaller, unfilled arrowheads in the CDC6 line represent the positions of cdc6 pseudogenes. DV6 (divergent region 6, see Figure 5) is indicated below the cumulative GC-skew plot. Vertical grey-shaded stripes mark correlating features.

Figure 1

doi: https://doi.org/10.1371/journal.pone.0020968.g001