Highly represented transcripts from the M. aeruginosa pan-genome listed in descending order of average RPKM value. Heat map scale is the log2 of RPKM values. The 25 most abundant transcripts from each of the six samples correspond to 53 different genes. Gene numbers are given followed by a letter to indicate membership in the core or flexible genome (C=core, N=flexible NIES-843P=flexible PCC7806) and functions are given for PS=Photosynthesis, GV=Gas Vesicles, MGE=Mobile Genetic Element, GIP=Genetic Information Processing, aaM=amino acid metabolism and Chap=Chaperones. Hypothetical genes annotated based on gene neighborhoods or published studies (that is, microviridin, Ziemert et al., 2010) are marked with asterisk (*).