Highly plastic genome of Microcystis aeruginosa PCC 7806, a ubiquitous toxic freshwater cyanobacterium

BMC Genomics

Table 1 Comparison between two Microcystis genomes

Strain (a)	Mic-PCC7806	Mic-NIES843
Genome length	5.17 Mb (116 Contigs)	5.84 Mb
rRNA loci	2	2
tRNA loci	41	42
Number of CDSs	5292	6312
Putative transposases (COG similarity)	362 (6.8%)	469 (7.4%)
Proteins linked by BDBH	3322 (63%)	3322 (53%)
Proteins absent in the other Microcystis genome (b)	838 (16%)	1760 (28%)
Strain-specific proteins (c)	644/838 (76%)	1484/1760 (84%)
Large repeats (d)	11.7%	11.7%

(a) See the Methods section for the strain identifiers.
(b) Proteins that do not share similarity (> 40%) with any proteins in the other Microcystis genome.
(c) Proteins with no similarity (> 40%) with any proteins in the 44 other cyanobacterial genomes.
(d) Proportion of large repeats (> 1000 bases; > 90% identity) in the genome (see Figure 2).
Mb: megabases; CDS: coding sequence; COG: cluster of orthologs; BDBH: bidirectional best hit.

ISSN: 1471-2164