Phylogenetic analysis of goat warble fly (Przhevalskiana silenus) based on mitochondrial COI gene
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The larvae of the genus Przhevalskiana (Diptera: Oestridae) are the causative agents of subcutaneous myiasis in goats. Several species have been grouped under this genus based on the morphology of different larval stages, albeit with a lot of uncertainties. Thus, application of genetic tools seems to be helpful for taxonomy. During this study, the cytochrome oxidase I (COI) gene was targeted for the characterization of larval stages of goat warble fly. Fragments of 606 bp were amplified for all the specimens. Based on the COI gene analysis, all the recovered specimens were identified as larvae of Przhevalskiana silenus. Molecular data on the genus is relatively rare but present isolates revealed about 87–89% identity with previous isolates of P. silenus. According to the phylogenetic data, the present isolates branched (as a sister group) with a number of Hypoderma spp. including H. bovis, H. diana, H. lineatum and H. sinense. The present findings confirmed that the COI gene could be a suitable marker for genetic characterization and identification of larvae up to the species level.
KeywordsPrzhevalskiana silenus Goat warble fly Cytochrome oxidase I (COI) gene Phylogeny
The authors thank Mr. Mootabi Alavi for his kind help.
ER and SMR designed and supervised the experiment. RF carried out the research technically; AE and MA had roles in analyzing data and writing the manuscript. SS participated in collecting the samples and conducting the study.
This work was financially supported by a research grant from Shiraz University, Shiraz, Iran (Grant No. 96-GR-VT-1).
Compliance with ethical standards
Conflict of interest
All authors declares that they have no conflict of interest.
- Madel G (1969) The goat warble-fly Przhevalskiana silenus in Afghanistan. Angew Parasitol 10:204–210Google Scholar
- Otranto D, Traversa D (2004) Molecular evidence indicating that Przhevalskiana silenus, P. aegagri and P. crossii (Diptera, Oestridae) are one species. Acta Parasitol 49:173–176Google Scholar
- Zumpt F (1965) Myiasis in man and animals of the old world. Butterworths, London, pp 205–214Google Scholar