Volume 22, Number 3—March 2016
Dispatch
Far East Scarlet-Like Fever Caused by a Few Related Genotypes of Yersinia pseudotuberculosis, Russia
Table 2
Target gene† | Fragment length, bp‡ | Alleles, no. | Indels, no. | Polymorphic sites/parsimony informative | Substitutions, no. |
Results of positive selection test, probability/dN – dS§ | Nucleotide diversity, no. | |
---|---|---|---|---|---|---|---|---|
S | N | |||||||
adk | 387 | 1 | 0 | 0/0 | NA | NA | NA | NA |
argA | 357 | 1 | 0 | 0/0 | NA | NA | NA | NA |
aroA | 354 | 1 | 0 | 0/0 | NA | NA | NA | NA |
glnA | 336 | 3 | 0 | 2/0 | 10 | 2 | 1.000/–2.734 | 0.01974 |
thrA | 339 | 3 | 0 | 2/0 | 2 | 0 | 1.000/–1.455 | 0.00390 |
tmk | 372 | 4 | 0 | 7/0 | 7 | 0 | 1.000/–2.832 | 0.00941 |
trpE | 465 | 2 | 0 | 1/0 | 1 | 0 | 1.000/–1.021 | 0.00215 |
Concatemers MLST¶ | 2,610 | 6 | 0 | 22/5 | 20 | 2 | 1.000/–3.937 | 0.00289 |
inv | 603 | 2 | 0 | 3/0 | 1 | 2 | 1.000/–0.494 | 0.00498 |
yopE | 540 | 3 | 0 | 3/0 | 0 | 3 | 0.034/1.835 | 0.00368 |
yadA | 651 | 3 | 6 | 9/2 | 2 | 7 | 0.408/0.238 | 0.00930 |
Concatemers virulence genes# | 1,794 | 3 | 6 | 15/4 | 3 | 12 | 0.109/1.241 | 0.00457 |
Concatemers MVLST** | 4,404 | 6 | 6 | 37/9 | 23 | 14 | 1.000/–3.023 | 0.00311 |
*Positive values are shown in bold. dN, number of nonsynonymous substitutions per site; dS, number of synonymous substitutions per site; MLST, multilocus sequence typing; MVLST, multivirulence locus sequence typing; NA, not applicable.
†Housekeeping genes are included in the MLST scheme.
‡Length of fragments included in the sequence analysis.
§The probability of rejecting the null hypothesis of strict neutrality (dN = dS) in favor of the alternative hypothesis (dN is >dS) and the test statistics (dN – dS) are shown. Values were calculated by using MEGA6 (10).
¶Concatemers of sequences included in the MLST scheme. The sequences were cut off to start and finish an analysis with the first and third codon positions, respectively. Concatemers were gathered manually.
#Concatemers of virulence gene fragments.
**Concatemers of 7 housekeeping and 3 virulence gene fragments.
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1These authors were co–principal investigators.