Molecular characterization of the parasitic nematode genus Crassicauda; larvae parasitic on the firefly squid and adults on beaked whales off the coast of Japan.

ABSTRACT: The Spirurina type X larvae, which infect firefly squid (Watasenia scintillans), are known to cause cutaneous creeping eruption and intestinal obstruction in humans. Although it has been reported that the adult of this larva is Crassicauda giliakiana, which was recovered from a Baird's beaked whale (Berardius bairdii), it is not well known internationally. In this study, to reconfirm the identification of this species, we determined the mitochondrial cox1 gene and the partial sequence of 18S-28S ribosomal DNA from larvae recovered from firefly squid. As the results, we confirmed that the larvae were C. giliakiana, and partial ribosomal DNA sequences were also performed for phylogenetic analysis. Furthermore, to determine the distribution of the genus Crassica

SUBMITTER: Kumagai T 

PROVIDER: S-EPMC9849861 | biostudies-literature | 2023 Apr

REPOSITORIES: biostudies-literature