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A THIRD SPECIES OF HYPODERMA (DIPTERA: OESTRIDAE) AFFECTING CATTLE AND YAKS IN CHINA: MOLECULAR AND MORPHOLOGICAL EVIDENCE

A THIRD SPECIES OF HYPODERMA (DIPTERA: OESTRIDAE) AFFECTING CATTLE AND YAKS IN CHINA: MOLECULAR... Cattle and yak hypodermosis in China is caused by Hypoderma bovis and H. lineatum, with a prevalence reaching up to 98–100% of the animals and maximum intensities exceeding 400 warbles for each animal. A third species, H. sinense, is also considered by Chinese researchers to affect livestock. The molecular characterization of the most variable region of the mitochondrial cytochrome oxidase I gene and of the ribosomal 28S gene has been performed for the third-stage larvae collected from cattle and yaks in China and identified (on the basis of the spinulation on the ventral side of the 10th segment) as H. bovis, H. lineatum, and H. sinense. Amplicons were digested with the HinfI and BfaI restriction enzymes, which provided diagnostic profiles to simultaneously differentiate the 3 Hypoderma species. Third-stage larvae of H. sinense were also examined by scanning electron microscopy, which revealed proper morphological characteristics different from those of H. bovis and H. lineatum. The molecular and morphological evidence herein reported support the existence of a third species of Hypoderma affecting cattle and yaks in China, and the results provide new tools for unequivocal identification of this species and present key components for the evaluation of its endogenous cycle and pathogenicity in animals and humans. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png The Journal of Parasitology Allen Press

A THIRD SPECIES OF HYPODERMA (DIPTERA: OESTRIDAE) AFFECTING CATTLE AND YAKS IN CHINA: MOLECULAR AND MORPHOLOGICAL EVIDENCE

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The Journal of Parasitology , Volume 90 (5): 8 – Oct 4, 2004

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References (27)

Publisher
Allen Press
Copyright
American Society of Parasitologists
Subject
ECTOPARASITOLOGY
ISSN
0022-3395
eISSN
1937-2345
DOI
10.1645/GE-232R
pmid
15562593
Publisher site
See Article on Publisher Site

Abstract

Cattle and yak hypodermosis in China is caused by Hypoderma bovis and H. lineatum, with a prevalence reaching up to 98–100% of the animals and maximum intensities exceeding 400 warbles for each animal. A third species, H. sinense, is also considered by Chinese researchers to affect livestock. The molecular characterization of the most variable region of the mitochondrial cytochrome oxidase I gene and of the ribosomal 28S gene has been performed for the third-stage larvae collected from cattle and yaks in China and identified (on the basis of the spinulation on the ventral side of the 10th segment) as H. bovis, H. lineatum, and H. sinense. Amplicons were digested with the HinfI and BfaI restriction enzymes, which provided diagnostic profiles to simultaneously differentiate the 3 Hypoderma species. Third-stage larvae of H. sinense were also examined by scanning electron microscopy, which revealed proper morphological characteristics different from those of H. bovis and H. lineatum. The molecular and morphological evidence herein reported support the existence of a third species of Hypoderma affecting cattle and yaks in China, and the results provide new tools for unequivocal identification of this species and present key components for the evaluation of its endogenous cycle and pathogenicity in animals and humans.

Journal

The Journal of ParasitologyAllen Press

Published: Oct 4, 2004

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