Table 1 The primer sets used in this study

lytA

5´-GGCTACTGGTACGTACATTC-3´

5´-AATCAAGCCATCTGGCTCTA-3´

395bp

[18]

P6

5´- ACTTTTGGCGGTTACTCTGT-3´

5´- TGTGCCTAATTTACCAGCAT-3´

273bp

[19]

bexA

HI-1-5'-CGTTTGTATGATGTTGATCCAGAC-3'

HI-2-5'-TGTCCATGTCTTCAAAATGATG-3'

343bp

[19]

Type a

a1-5'-CTACTCATTGCAGCATTTGC-3'

a2-5'-GAATATGACCTGATCTTCTG-3'

250bp

[20]

Type b

b1-5'-GCGAAAGTGAACTCTTATCTCTC-3'

b2-5'-GCTTACGCTTCTATCTCGGTGAA-3'

480bp

[20]

Type c

c1-5'-TCTGTGTAGATGATGGTTCA-3'

c2-5'-CAGAGGCAAGCTATTAGTGA-3'

250bp

[20]

Type d

d1-5'-TGATGACCGATACAACCTGT-3'

d2-5'-TCCACTCTTCAAACCATTCT-3'

150bp

[20]

Type e

e1-5'-GGTAACGAATGTAGTGGTAG-3'

e2-5'-GCTTTACTGTATAAGTCTAG-3'

1350bp

[20]

Type f

f1-5'-GCTACTATCAAGTCCAAATC-3'

f2-5'-CGCAATTATGGAAGAAAGCT-3'

450bp

[20]