Widespread Distribution of Ceratonova shasta (Cnidaria: Myxosporea) Genotypes Indicates Evolutionary Adaptation to its Salmonid Fish Hosts

The Journal of Parasitology
Matthew E T StinsonJerri L Bartholomew

Abstract

The distribution of the freshwater myxozoan parasite Ceratonova shasta in the Pacific Northwest of North America is limited to overlap in the ranges of its 2 hosts: the polychaete Manyunkia sp., and Pacific salmonids. Studies in the Klamath River (Oregon/California) and Deschutes River (Oregon), showed that the parasite population is comprised of multiple sympatric genotypes, some of which correlate with particular salmonid host species and with differences in clinical disease in those hosts. The 3 primary genotypes O, I, and II are defined by the number of a specific tri-nucleotide repeat in the internal transcribed spacer-1 region. To understand the spatial extent of host-parasite genotype patterns, we sequenced the parasite from 448 salmonid fishes from river basins in California, Oregon, Washington, Idaho, and British Columbia, Canada. We sampled intestinal tissues from 6 species of salmon and trout, both those that exist naturally with the parasite (sympatric) and those that do not naturally co-occur with the parasite and were exposed artificially in cages (allopatric). In most river basins we detected the same primary C. shasta genotypes that were described from the Klamath and Deschutes rivers, and we did not detect any ...Continue Reading

References

Mar 26, 2003·The Journal of General Virology·Gael KurathEric D Anderson
Dec 21, 2007·Blood·Paul S ChangelianElizabeth M Kudlacz
Apr 14, 2010·International Journal for Parasitology·Sarah J Bjork, Jerri L Bartholomew
Jul 6, 2010·Infection, Genetics and Evolution : Journal of Molecular Epidemiology and Evolutionary Genetics in Infectious Diseases·Stephen D Atkinson, Jerri L Bartholomew
Mar 13, 2012·Applied and Environmental Microbiology·Sascha L HallettJerri L Bartholomew
Jul 20, 2012·Journal of Fish Diseases·C N Hurst, J L Bartholomew
Nov 14, 2012·Journal of Aquatic Animal Health·Matthew E T Stinson, Jerri L Bartholomew
Apr 15, 2014·The Journal of Parasitology·M L KentT J Sharpton
Jun 20, 2014·The Journal of Parasitology·Charlene N HurstJerri L Bartholomew

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Citations

Apr 13, 2019·International Journal for Parasitology. Parasites and Wildlife·C N HurstJ L Bartholomew
Aug 28, 2020·Developmental and Comparative Immunology·Laura Taggart-MurphyJerri Bartholomew
Oct 3, 2021·Parasitology Research·Sarah E FriendJan Lovy

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Methods Mentioned

BETA
PCR
genotyping

Software Mentioned

4Peaks

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