Table 1
Sites of S. feltiae isola
| Isolate | Site characteristic |
|---|---|
| S feltiae KAT 13 | field (Miscantus giganteus crop) (Silesia Region) |
| S. feltiae ZAG 4 | deciduous forest, the Zagożdżonka River valley (Kozienicka Forest) |
| S. feltiae ZAG 11 | deciduous forest, the Zagożdżonka River valley (Kozienicka Forest) |
| S. feltiae ZWO 4 | meadow, the Zwoleńka River valley (Kozienicka Forest) |
| S. feltiae ZWO 21 | meadow, the Zwoleńka River valley (Kozienicka Forest) |
| S. feltiae ZWO 23 | meadow, the Zwoleńka River valley (Kozienicka Forest) |
| S. feltiae SIEW 1 | field (wheat crop) (Silesia) |

Fig. 1
Phylogenetic relationship among Steinernematid species based on the sequences of the ITS region determined by the NJ method. Numbers on branches more than 50% indicated the percentage of 10000 bootstrap replicates. Sequences obtained in this study are marked with black triangle
Table 2
Pairwise similarity of studied isolates (samples)
| Isolate | Identities | ||||||
|---|---|---|---|---|---|---|---|
| ZAG4 | ZAG11 | ZWO4 | ZWO21 | ZWO23 | KAT13 | SIEW1 | |
| ZAG4 | - | 980/980 (100 %) | 980/980 (100 %) | 980/980 (100 %) | 980/980 (100 %) | 980/980 (100 %) | 904/919 (98 %) |
| ZAG11 | 0/980 (0 %) | - | 980/980 (100 %) | 980/980 (100 %) | 980/980 (100 %) | 980/980 (100 %) | 904/919 (98 %) |
| ZWO4 | 0/980 (0 %) | 0/980 (0 %) | - | 980/980 (100 %) | 980/980 (100 %) | 980/980 (100 %) | 904/919 (98 %) |
| ZWO21 | 0/980 (0 %) | 0/980 (0 %) | 0/980 (0 %) | - | 980/980 (100 %) | 980/980 (100 %) | 904/919 (98 %) |
| ZWO23 | 0/980 (0 %) | 0/980 (0 %) | 0/980 (0 %) | 0/980 (0 %) | - | 980/980 (100 %) | 904/919 (98 %) |
| KAT13 | 0/980 (0 %) | 0/980 (0 %) | 0/980 (0 %) | 0/980 (0 %) | 0/980 (0 %) | - | 904/919 (98 %) |
| SIEW1 | 12/919 (1.3 %) | 12/919 (1.3 %) | 12/919 (1.3 %) | 12/919 (1.3 %) | 12/919 (1.3 %) | 12/919 (1.3 %) | - |
| Gaps | |||||||