Protistan parasite QPX of hard-shell clam Mercenaria mercenaria is a member of Labyrinthulomycota

Autor: Sharon E. McGladdery, Greg S. MacCallum, Robin R. Gutell, Jamie J. Cannone, Colleen A. Murphy, Mark A. Ragan
Rok vydání: 2000
Předmět:
Zdroj: Diseases of Aquatic Organisms. 42:185-190
ISSN: 1616-1580
0177-5103
DOI: 10.3354/dao042185
Popis: Biomass of the protistan parasite QPX (quahaug parasite X) of hard-shell clam Mercenaria mercenaria was enriched from in vitro culture. The nuclear gene encoding the 18S RNA of the small-subunit ribosomal (ssu-rDNA) was recovered using the polymerase chain reaction (PCR) and sequenced. Phylogenetic analysis clearly showed that QPX is a member of phylum Labyrinthulomycota, within which it appears as a specific relative of Thraustochytrium pachydermum. These results confirm the provisional assignment of QPX to the Labyrinthulomycota made previously on the basis of morphological and ultrastructural characters found in some, but not all, geographic isolates.
Databáze: OpenAIRE