TABLE 4.
Polymorphism of MLST and MVLST genes in L. monocytogenes isolates.
| Gene | Size (bp) | GC content (%) | No. (%) polymorphic sites | Ks | Ka | Ka/Ks | π(%) | Tajima’s D | |
| MLST | abcZ | 537 | 37.5 | 31 (5.8) | 0.07796 | 0.00087 | 0.011 | 1.759 | 1.44291 |
| bglA | 399 | 40.7 | 21 (5.3) | 0.04531 | 0.00069 | 0.015 | 1.037 | −0.15876 | |
| cat | 486 | 41.1 | 22 (4.5) | 0.07746 | 0.00135 | 0.017 | 1.795 | 2.63086* | |
| dapE | 462 | 43.8 | 36 (7.8) | 0.13208 | 0.00712 | 0.054 | 3.413 | 2.71695∗∗ | |
| dat | 471 | 36.5 | 57 (12.1) | 0.20685 | 0.01232 | 0.060 | 5.587 | 3.08223∗∗ | |
| ldh | 453 | 43.4 | 19 (4.2) | 0.06103 | 0.00008 | 0.001 | 1.396 | 1.76974 | |
| lhkA | 480 | 37.3 | 20 (4.2) | 0.05357 | 0.00239 | 0.045 | 1.377 | 1.72851 | |
| Concatenate | 3288 | 40.4 | 151 (4.6) | 0.07257 | 0.00214 | 0.030 | 1.762 | 1.93145 | |
| MVLST | clpP | 416 | 39.7 | 14 (3.3) | 0.00442 | 0.01569 | 3.551 | 1.327 | 2.51168* |
| dal | 438 | 40.9 | 62 (14.2) | 0.22553 | 0.01484 | 0.066 | 6.124 | 2.48712* | |
| inlB | 433 | 40.3 | 35 (8.1) | 0.09282 | 0.00720 | 0.078 | 2.720 | 1.59339 | |
| inlC | 415 | 31.5 | 15 (3.6) | 0.04001 | 0.00407 | 0.102 | 1.192 | 1.67372 | |
| lisR | 444 | 38.6 | 5 (1.1) | 0.00000 | 0.00416 | – | 0.331 | 0.94608 | |
| PrfA | 469 | 34.5 | 19 (4.1) | 0.05663 | 0.00000 | 0.000 | 1.233 | 1.26807 | |
| Concatenate | 2615 | 37.6 | 150 (5.7) | 0.00000 | 0.00000 | 0.000 | 2.113 | 2.18230* |
Ks, the number of synonymous substitutions per synonymous site; Ka, the number of non-synonymous substitutions per non-synonymous site. π, average pairwise nucleotide difference per site. *: Statistic difference of p < 0.05; ∗∗: Statistic difference of p < 0.01.