Morphological and molecular characterization of a novel <i>Myxobolus</i> species from the gastrointestinal tract of brown trout (<i>Salmo trutta</i>) in Spain

• Type: Article in International Scientific Journal
• Date: 2021

Authors

Couso Pérez, S (Author) Other; Rangel, LF (Author) Other; Santos, MJ (Author) FCUP; Ares Mazás, E (Author) Other; Gómez Couso, H (Author) Other

Journal

Title: Parasitology Research

Vol. 120

Pages: 2469-2478

ISSN: 0932-0113

Publisher: Springer Nature

Indexing

ISI Web of Knowledge - 2 Citations

Scopus - 2 Citations

Other information

Authenticus ID: P-00V-42F

DOI: 10.1007/s00436-021-07201-z

Abstract (EN): The genus Myxobolus Butschli, 1882 is the largest group within the class Myxosporea and includes 905 nominal species, 18 of which have been found to infect fish belonging to the family Salmonidae. In the present study, microscopic analysis enabled detection of myxospores in 43 of 613 (7.0%) gastrointestinal tracts from brown trout (Salmo trutta) captured in several rivers in the northwest of the Iberian Peninsula. Measurement of the whole myxospores, polar capsules and other morphological characteristics, together with identification of the site of infection, has led us to propose a novel salmonid-myxobolid species, Myxobolus compostellanus n. sp. Molecular analysis of the small subunit ribosomal RNA (SSU-rRNA) gene yielded the same consensus sequence of 2039 bp in 14 fish specimens. A BLAST search indicated 97.6% similarity to Myxobolus neurobius. Phylogenetic analysis revealed that M. compostellanus n. sp. is clustered with other salmonid-infecting myxobolids. The present findings contribute to the existing knowledge about the genus Myxobolus, providing both morphological and molecular data on a novel species of Myxobolus found to infect the gastrointestinal tract of salmonids, M. compostellanus n. sp. in the brown trout (S. trutta).

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 10