Table 1
T. hydatigena and other Taeniid nucleotide sequences used for phylogeny
| Species | Origin | Host | Accession number | Reference |
|---|---|---|---|---|
| T. hydatigena | Iran | Sheep | KU745527 | Ibrahimi et al., 2016 unpublished |
| T. hydatigena | Iran | Sheep | KX094339 | Ibrahimi et al., 2016 unpublished |
| T. hydatigena | Egypt | Sheep | KU671393 | Abbas et al., 2016 unpublished |
| T. hydatigena | China | Sheep | GQ228819 | Jia et al., 2010 (9) |
| T. hydatigena | China | Dog | FJ518620 | Liu et al., 2011 (14) |
| T. multiceps | Iran | Sheep | JQ710646 | Rostami et al., 2013 (19) |
| T. ovis | Iran | Sheep | JX134130 | Rostami et al., 2012 unpublished |
| T. saginata | Iran | Cattle | KC344681 | Rostami et al., 2012 unpublished |
| T. solium | China | Pig | AF337904 | Li and Dianwu, 2001 unpublished |
| E. granulosus | Portugal | Sheep | HG975356 | Beato et al., 2014 unpublished |

Fig. 1
PCR amplification of 12S rRNA gene. The12S rRNA gene (489 bp) of C. tenuicollis was amplified and resolved on 1.5% agarose gel. Lane M –marker (100-bp ladder DNA); lane S – positive C. tenuicollis isolate

Fig. 2
DNA purification of 12S rRNA gene. PCR products of 12S rRNA gene were recovered and electrophoresed on 1.5% agarose gel. Lane M – marker (100-bp ladder DNA); lanes S1-S15 – positive C. tenuicollis isolates

Fig. 3
Intraspecific phylogenetic relationship of sheep C. tenuicollis isolates in Iraq. The phylogeny of sheep C. tenuicollis was computed by neighbour joining (NJ) from the partial 12S rRNA gene nucleotide sequences. The scale bar represents 0.05% divergence. Bootstrap values are shown above or below branches. MK858233–MK858251 are GenBank accession numbers representing T. hydatigena sequences identified in this study; N1–N19 isolated C. tenuicollis; H1–H5 haplotypes of C. tenuicollis

Fig. 4
Interspecific phylogenetic relationship of C. tenuicollis. Phylogeny of T. hydatigena isolates represents partial 12S rRNA sequences. The scale bar represents the estimated numbers of nucleotide substitutions per nucleotide site