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Article

Identification of Sarcocystis spp. in One-humped Camels (Camelus dromedarius) from Riyadh and Dammam, Saudi Arabia, via Histological and Phylogenetic Approaches

1
Department of Zoology, College of Science, King Saud University, Riyadh 11451, KSA
2
Department of Parasitology, Faculty of Veterinary Medicine, Zagazig University, Zagazig 44519, Egypt
3
Department of Biology, Al-Nairiyah University College, University of Hafr Al-Batin, Hafr Al-Batin 31991, Saudi Arabia
4
Department of Information Technology, College of Computer and Information Sciences, King Saud University, Riyadh 11451, Saudi Arabia
5
Department of Biology, Faculty of Science, Princess Nourah Bint Abdelrahman University, Riyadh 84428, Saudi Arabia
6
Department of Zoology and Entomology, Faculty of Science, Helwan University, Cairo 11795, Egypt
*
Author to whom correspondence should be addressed.
Animals 2020, 10(7), 1108; https://doi.org/10.3390/ani10071108
Received: 5 May 2020 / Revised: 12 June 2020 / Accepted: 22 June 2020 / Published: 28 June 2020
(This article belongs to the Special Issue Veterinary Microbiology & Parasitology)
In the present work, we explored the existence of Sarcocystis spp. in samples of camels obtained from abattoirs in Riyadh, Saudi Arabia. We examined tissues of the tongue, heart, esophagus, diaphragm, and skeletal muscle by macroscopic assessments, optical microscopy of tissues, optical microscopy of digested sediment, Transmission Electron Microscopy (TEM), and Polymerase chain reaction (PCR) followed by gene sequencing. The results identified Sarcocystis cameli (S. cameli) and S. camelicanis. Sarcocystis spp. were detected in Saudi Arabian camels by molecular analysis. S. levinei and S. miescheriana were most closely related.
Sarcocystis (S.) spp. are intracellular protozoan parasites that infect birds and animals, resulting in substantial commercial losses. Sarcocystis spp. have an indirect life cycle; canines and felines are known to act as final hosts, and numerous domestic and wild animals act as intermediate hosts. The presence of sarcocysts in camel meat may diminish its commercial quality. There is limited knowledge regarding the taxonomy and diagnosis of Sarcocystis spp. that infect camels in Saudi Arabia. In this study, transmission electron microscopy (TEM) revealed S. cameli and S. camelicanis (camelicanis) in Camelus (C.) dromedarius. This is the first report of S. camelicanis in Saudi Arabia and is considered a significant finding. Based on cytochrome c oxidase subunit I gene (COX1) sequences, two samples of Sarcocystis spp. isolated from C. dromedarius in Riyadh and Dammam were grouped with S. levinei hosted by Bubalus bubalis in India, S. rangi hosted by Rangifer tarandus in Norway, S. miescheriana hosted by Sus scrofa in Italy and S. fayeri hosted by Equus caballus in Canada. The sequences obtained in this study have been deposited in GenBank. View Full-Text
Keywords: Sarcocystis spp.; COX1; Camelus dromedarius Sarcocystis spp.; COX1; Camelus dromedarius
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MDPI and ACS Style

Metwally, D.M.; Al-Otaibi, T.T.; Al-Turaiki, I.M.; El-Khadragy, M.F.; Alajmi, R.A. Identification of Sarcocystis spp. in One-humped Camels (Camelus dromedarius) from Riyadh and Dammam, Saudi Arabia, via Histological and Phylogenetic Approaches. Animals 2020, 10, 1108. https://doi.org/10.3390/ani10071108

AMA Style

Metwally DM, Al-Otaibi TT, Al-Turaiki IM, El-Khadragy MF, Alajmi RA. Identification of Sarcocystis spp. in One-humped Camels (Camelus dromedarius) from Riyadh and Dammam, Saudi Arabia, via Histological and Phylogenetic Approaches. Animals. 2020; 10(7):1108. https://doi.org/10.3390/ani10071108

Chicago/Turabian Style

Metwally, Dina M.; Al-Otaibi, Tahani T.; Al-Turaiki, Isra M.; El-Khadragy, Manal F.; Alajmi, Reem A. 2020. "Identification of Sarcocystis spp. in One-humped Camels (Camelus dromedarius) from Riyadh and Dammam, Saudi Arabia, via Histological and Phylogenetic Approaches" Animals 10, no. 7: 1108. https://doi.org/10.3390/ani10071108

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