Molecular characterization of larval anisakid nematodes from marine fishes off the Moroccan and Mauritanian coasts

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• 作者：Sarra Farjallah ; Marina Busi ; Mohamed Ould Mahjoub ; Badreddine Ben Slimane ; Lia Paggi ; Khaled Said ; Stefano D'Amelio
• 关键词：Anisakis spp. ; Anisakis larvae Type I ; Anisakis larvae Type II ; Nuclear ribosomal DNA ; PCR-RFLP ; Morocco ; Mauritania
• 刊名：Parasitology International
• 出版年：2008
• 出版时间：December 2008
• 年：2008
• 卷：57
• 期：4
• 页码：430-436
• 全文大小：1727 K

文摘

A total of 242 larval forms of Anisakis collected from marine fishes at different sites off the Moroccan and Mauritanian coasts, recognised as belonging to Type I and Type II larvae, were identified by PCR-RFLP (Polymerase Chain Reaction-Restriction Fragment Length Polymorphisms) of the ITS (Internal Transcribed Spacers) region (ITS-1, 5.8 subunit rRNA gene and ITS-2), using a previously established molecular key. The Type I larvae were found with a frequency of 98.34 % and were identified as belonging to the following species: A. simplex s.str., A. pegreffii, A. simplex s.str/A. pegreffii heterozygote genotypes, A. typica, A. ziphidarum and Anisakis sp. A. The Type II larvae were found to belong to A. physeteris, with the frequency of 1.65 % . The results reported in the present study provide further epizootiological and biological data on the Anisakis spp. in marine fishes off the Moroccan and Mauritanian coasts, improving the picture of the occurrence of these species in the central Atlantic coasts.