Table 2 Strand preference of genes from pan-genome fractions

All genes (5742 OGs + 4584 singletons)

79.6

1.4

Non strain-specific OGs (5742)

79.8 *

1.4

Common core (458)

83.9 *

0.6

S.pneumoniae specific core (114)

79.6

0.9

S.pyogenes specific core (87)

73.5 *

0.2

S.suis specific core (126)

78.8

1.6

S.pneumoniae periphery (1136)

75.2 *

5.2

S.pyogenes periphery (922)

75.5 *

3.6

S.suis periphery (891)

78.3 *

3.3

Common periphery (270)

77.8 *

6

Strain-specific OGs (4584)

70.1 *

15.2