Molecular Characterization of Novel Cryptosporidium Fish Genotypes in Edible Marine Fish | Certad, Gabriela
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Molecular Characterization of Novel Cryptosporidium Fish Genotypes in Edible Marine Fish

Archive ouverte : Article de revue

Certad, Gabriela | Zahedi, Alireza | Gantois, Nausicaa | Sawant, Manasi | Creusy, Colette | Duval, Erika | Benamrouz-Vanneste, Sadia | Ryan, Una | Viscogliosi, Eric

Edité par HAL CCSD ; MDPI

International audience. Current knowledge of Cryptosporidium species/genotypes in marine fish is limited. Following phylogenetic analysis at the 18S rDNA locus, a recent study identified six new genotypes of Cryptosporidium colonizing edible fish found in European seas. Of these, five grouped in a clade together (#Cryptofish 1–5) and one grouped separately (#Cryptofish 7). In the present study, after phylogenetic analyses of #Cryptofish1, #Cryptofish2, #Cryptofish4, #Cryptofish5 and #Cryptofish7 at the actin locus, the presence of two major clades was confirmed. In addition, when possible, longer 18S amplicons were generated. In conclusion, the small genetic distances between these genotypes designated as a novel marine genotype I (#Cryptofish 1-5) suggest that they may be genetic variants of the same species, while the designated novel marine genotype 2 (#Cryptofish 7) is clearly representative of a separate species.

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