Korean J Parasitol.
2015 Dec;53(6):719-724. 10.3347/kjp.2015.53.6.719.
A Horsehair Worm, Gordius sp. (Nematomorpha: Gordiida), Passed in a Canine Feces
- Affiliations
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- 1College of Veterinary Medicine, Chungnam National University, Daejeon 35015, Korea. bkpark@cnu.ac.kr
- 2Department of Biology, Baylor University, Waco, Texas 76798, USA.
- 3Laboratory of Veterinary Internal Medicine, BK21 PLUS Program for Creative Veterinary Science Research and College of Veterinary Medicine, Seoul National University, Seoul 03080, Korea.
- 4College of Veterinary Medicine, Gangwon National University, Chuncheon 24289, Korea.
- 5College of Veterinary Medicine, Chonbuk National University, Cheongju 28644, Korea.
- 6College of Ecology and Environmental Science, Kyungpook National University, Sangju 37224, Korea.
- 7College of Veterinary Medicine, Chonnam National University, Gwangju 61186, Korea.
- 8Laboratory of Veterinary Clinics, National Institute of Animal Science Rural Development Administration, Gwangju 61186, Korea.
- KMID: 2360153
- DOI: http://doi.org/10.3347/kjp.2015.53.6.719
Abstract
- Nematomorpha, horsehair or Gordian worms, include about 300 freshwater species in 22 genera (Gordiida) and 5 marine species in 1 marine genus (Nectonema). They are parasitic in arthropods during their juvenile stage. In the present study, the used gordian worm was found in the feces of a dog (5-month old, male) in July 2014. Following the worm analysis using light and scanning electron microscopes, the morphological classification was re-evaluated with molecular analysis. The worm was determined to be a male worm having a bi-lobed tail and had male gonads in cross sections. It was identified as Gordius sp. (Nematomorpha: Gordiidae) based on the characteristic morphologies of cross sections and areole on the cuticle. DNA analysis on 18S rRNA partial sequence arrangements was also carried out, and the gordiid worm was assumed to be close to the genus Gordius based on a phylogenic tree analysis.
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