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Vol.4 , No. 5, Publication Date: Oct. 13, 2017, Page: 56-61
 from Gedaref State, Eastern Sudan&description=The Sudanese Horse flies are a group of hematophagous insects that are responsible for transmitting diseases to animals. A cytogenetic analysis of field–collected Tabanids flies, was carried out in Al-Showak district, Gedaref state, Eastern Sudan, to have information on the karyotypic structures prevalent in the area. In this study the karyotype of five horse flies species, <i>Tabanus autumnalis</i> (Szilády 1914); <i>Tabanus leleani</i> (Austen 1920); <i>Atylotus pulchellus</i> (Loew 1858); <i>Hybomitra mendica</i> (Villeneuve 1912) and <i>Tabanus sp.</i> were described for the first time in Sudan. Adult flies are collected by the trapping method; all specimens are transferred in to a preservative solution to the laboratory, where they firstly, morphologic and morphometric identified. Flies are dissected, fixed, stained and slides are prepared by squashing method, examined under the light microscope and photographed. Cytogenetic analysis showed the presence of five different pattern of karyotype in the collected Tabanids samples; <i>Tabanus autumnalis</i> (Szilády 1914) 7n = 14; <i>Tabanus leleani</i> (Austen 1920) 5n = 10; <i>Atylotus pulchellus</i> (Loew 1858) 6n = 12; <i>Hybomitra mendica</i> (Villeneuve 1912) 9n = 18 and <i>Tabanus sp.</i> 8n = 16. This study showed the presence of two genetically differentiated populations of Tabanus species as sympatric in Gedaref region. This karyotypic information will help in understanding the inheritance of the phenotypic variation within the horse flies and will be useful as taxonomic tool.&picture=http://www.aascit.org/aascit/decorators/img/journal/903.jpg)
| [1] | Hamid Ibrahim Mohamed Nour Croof, Ministry of Animals Resources, Gedaref, Sudan. |
| [2] | Mai Mohamed El-Nour, Department of Biology and Environmental Studies, Faculty of Science and Technology, ElNeelain University, Khartoum, Sudan. |
| [3] | Altayeb Khogali Ahmed Ali, Department of Medical Entomology, Blue Nile National Institute for Communicable Diseases, University of Gezira, Wad Medani, Sudan. |
| [4] | Nahla Osman Mohamed Ali, Department of Parasitology, Faculty of Veterinary Medicine, University of Khartoum, Khartoum, Sudan. |
The Sudanese Horse flies are a group of hematophagous insects that are responsible for transmitting diseases to animals. A cytogenetic analysis of field–collected Tabanids flies, was carried out in Al-Showak district, Gedaref state, Eastern Sudan, to have information on the karyotypic structures prevalent in the area. In this study the karyotype of five horse flies species, Tabanus autumnalis (Szilády 1914); Tabanus leleani (Austen 1920); Atylotus pulchellus (Loew 1858); Hybomitra mendica (Villeneuve 1912) and Tabanus sp. were described for the first time in Sudan. Adult flies are collected by the trapping method; all specimens are transferred in to a preservative solution to the laboratory, where they firstly, morphologic and morphometric identified. Flies are dissected, fixed, stained and slides are prepared by squashing method, examined under the light microscope and photographed. Cytogenetic analysis showed the presence of five different pattern of karyotype in the collected Tabanids samples; Tabanus autumnalis (Szilády 1914) 7n = 14; Tabanus leleani (Austen 1920) 5n = 10; Atylotus pulchellus (Loew 1858) 6n = 12; Hybomitra mendica (Villeneuve 1912) 9n = 18 and Tabanus sp. 8n = 16. This study showed the presence of two genetically differentiated populations of Tabanus species as sympatric in Gedaref region. This karyotypic information will help in understanding the inheritance of the phenotypic variation within the horse flies and will be useful as taxonomic tool.
Keywords
Horse Flies, Tabanidae, Cytogenetic, Karyotype Analysis, Gedaref, Sudan
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