Transcriptomic profiling of the oyster pathogen Vibrio splendidus opens a window on the evolutionary dynamics of the small RNA repertoire in the Vibrio genus

V. splendidus genome expression levels along chromosomes. (Top) Schematic circular diagrams of V. splendidus chromosomes I and II. Keys to the chromosomal circular diagrams (outside to inside): scale (in nucleotides): + strand CDS (red), − strand CDS (blue), position of sRNAs (dark green), r5′UTRs (light green), asRNAs (orange), log₂ of coverage per nucleotide, averaged on a window of 10,000 for the + strand (olive green) and for the − strand (purple). The position of the origin of replication for both chromosomes is indicated (nt 0). (Bottom) Linear representation of log₂ coverage (expressed as read numbers per a sliding window of 10,000 nt) along both chromosomes. The arrows indicate the sense of propagation of the replication forks from the origin of replication to the terminus of replication.