Fig. 2. Phylogenetic estimation by Neighbor Joining. A, Using COI and B, 18S rDNA coding-sequences. The phylogenetic trees were constructed with the distance matrix model (Neighbor Joining) of MEGA5 program. The node numbers represent the percentage corresponding to the values of 1000 cycles resampling (bootstrap). Species identified in this report are highlighted in bold text. The accession numbers of the sequences of the databases used for the analysis are listed below the name of each nematode species in brackets.