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Table 3 Polymorphisms at nine genes in the L. innocua-L. monocytogenes clade

From: Internalin profiling and multilocus sequence typing suggest four Listeria innocua subgroups with different evolutionary distances from Listeria monocytogenes

Gene

No. strains

Size (bp)

No. alleles

No. (%) polymorphic sites

D.I.

Ks

Ka

Ka/Ks

π

gyrB

64

657

23

74 (11.26%)

0.91

0.1991

0.0010

0.0050

0.0384

dapE

64

669

39

146 (21.82%)

0.98

0.2337

0.0152

0.0650

0.0564

hisJ

64

714

32

187 (26.19%)

0.95

0.3999

0.0380

0.0951

0.1000

sigB

64

642

24

83 (12.93%)

0.92

0.2588

0.0054

0.0207

0.0518

ribC

64

633

34

163 (25.75%)

0.93

0.6002

0.0209

0.0348

0.1093

purM

64

693

31

170 (24.53%)

0.94

0.3955

0.0194

0.0490

0.0853

betL

64

534

32

171 (32.02%)

0.94

0.7918

0.0312

0.0394

0.1325

gap

64

621

18

28 (4.51%)

0.76

0.0240

0.0013

0.0547

0.0067

tuf

64

681

11

14 (2.06%)

0.80

0.0182

0.0021

0.1160

0.0058

Concatenated

64

5,844

61

1036 (17.73%)

0.99

0.2621

0.0147

0.0559

0.0623

Concatenated, L. innocua

34

5,844

31

391 (6.69%)

0.99

0.0365

0.0032

0.0865

0.0106

Concatenated, subgroupA

19

5,844

18

90 (1.54%)

0.99

0.0142

0.0018

0.1241

0.0046

Concatenated, subgroup B

13

5,844

11

135 (2.31%)

0.97

0.0280

0.0018

0.0628

0.0077

Concatenated, subgroup C

1

5,844

1

--

--

0.4659

0.0241

0.0517

--

Concatenated, subgroup D

1

5,844

1

--

--

0.4867

0.0225

0.0461

--

Concatenated, L. monocytogenes

30

5,844

30

820 (14.03%)

1.00

0.1781

0.0089

0.0500

0.0438

Concatenated, lineage I

10

5,844

4

84 (1.44%)

1.00

0.0174

0.0019

0.1112

0.0055

Concatenated, lineage II

10

5,844

6

250 (4.28%)

1.00

0.0493

0.0027

0.0537

0.0131

Concatenated, lineage III

10

5,844

10

522 (8.93%)

1.00

0.1459

0.0084

0.0575

0.0374

  1. D.I.: discrimination index; Ks: number of synonymous changes per synonymous site; Ka: number of non-synonymous changes per non-synonymous site; π: nucleotide diversity.