Molecular characterization of larval anisakid nematodes from marine fishes off the Moroccan and Mauritanian coasts.
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.
Farjallah
Sarra
S
Unité de Recherche: Génétique, Biodiversité et Valorisation des Bioressources UR/09-30, Institut Supérieur de Biotechnologie de Monastir, Monastir 5000, Tunisia. sarra_farj@yahoo.fr
Busi
Marina
M
Mahjoub
Mohamed Ould
MO
Slimane
Badreddine Ben
BB
Paggi
Lia
L
Said
Khaled
K
D'Amelio
Stefano
S
D000818:Animals; D017129:Anisakiasis / Q000469:parasitology / Q000662:veterinary*; D017163:Anisakis / Q000145:classification* / Q000235:genetics / Q000254:growth & development; D001483:Base Sequence; D018509:DNA, Helminth / Q000032:analysis / Q000235:genetics; D021903:DNA, Ribosomal Spacer / Q000032:analysis; D005393:Fish Diseases / Q000469:parasitology*; D048388:Gadiformes / Q000469:parasitology; D007814:Larva / Q000145:classification / Q000235:genetics; D008435:Mauritania; D008969:Molecular Sequence Data; D009018:Morocco; D010473:Perciformes / Q000469:parasitology; D016133:Polymerase Chain Reaction / Q000379:methods; D012150:Polymorphism, Restriction Fragment Length; D012340:RNA, Ribosomal, 5.8S / Q000235:genetics; D012623:Seawater
D018509:DNA, Helminth; D021903:DNA, Ribosomal Spacer; D012340:RNA, Ribosomal, 5.8S