TABLE 2.
Summary of breakpoints and their statistical significance by analysis of the genotype 1 and 2 sets used in this studya
| Genotype and sequence set | Breakpoint(s) (nt from ORF5) | Significance byb: |
Different clustering before and after breakpoint | |
|---|---|---|---|---|
| SBP (AIC/AICc support) | GARD significance (P < 0.01) | |||
| PRRSV1 | ||||
| Germany | 181 | 0.688 | NS | Yes |
| Hungary 1 | 146 and 172 | 0.54 | NS | Yes |
| Hungary 2 | 149 | 0.777 | NS | No |
| Italy | 180 and 219 | 0.203 and 0.744 | P < 0.01 (nt 219) | Yes |
| Republic of Korea | 346 | 0.137 | P < 0.1 | Yes |
| Romania | Not found | NS | NS | No |
| Spain | 166 | 0.994 | NS | Yes |
| Thailand | 165 | 0.492 | NS | Yes |
| UK | 296 | 0.705 | NS | Yes |
| USA | 225 | 0.354 | NS | Yes |
| Eastern Europe | 175 | 0.99 | NS | Yes |
| PRRSV2 | ||||
| China | Not found | No | ||
| Mexico | 177 | 0.61 | Yes | |
| USA | 135 and 153 | 0.304 and 0.300 | P < 0.01 | Yes |
a
The presence of different topologies before and after the breakpoints by means of the phylogenetic analysis is also summarized in this table.
b
NS, not significant.