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Circular map of the strain GO-4 chromosome with functional annotation. Rings from outside to the center represent genes on the forward strand and reverse strand (colored by COG annotation categories, as listed in the bar graph with gene counts), RNA genes (tRNAs, green; rRNAs, red; other RNAs, black), GC content (gray), and GC skew (yellow and purple). The putative foreign gene-rich region with lower GC contents is shown with a blue background.
