Graphical circular map of the M. massiliensis strain NP3T chromosome. From the outside in: the outer two circles show open reading frames oriented in the forward and reverse (colored by COG categories) directions, respectively. The third circle displays the rRNA gene operon (red) and tRNA genes (green). The fourth circle shows the G+C% content plot. The inner-most circle shows the GC skew, purple and olive indicating negative and positive values, respectively.