Table 1

General features of the genomes of the four marine picocyanobacteria used in this study

Genome

Size (Mbp)

GC%

Number of protein-coding genes

P. marinus MED4

1.66

30.8

1,716

P. marinus SS120

1.75

36.4

1,882

Prochlorococcus sp. MIT9313

2.41

50.7

2,273

Synechococcus sp. WH8102

2.43

59.4

2,525

Dufresne et al. Genome Biology 2005 6:R14   doi:10.1186/gb-2005-6-2-r14