PUBLICATION
Early detection of Pseudocapillaria tomentosa by qPCR in four lines of zebrafish, Danio rerio (Hamilton 1882)
- Authors
- Schuster, C.J., Leong, C., Kasschau, K.D., Sharpton, T.J., Kent, M.L.
- ID
- ZDB-PUB-230224-45
- Date
- 2023
- Source
- Journal of fish diseases 46(6): 619-627 (Journal)
- Registered Authors
- Kent, Michael
- Keywords
- molecular detection, nematode infection, ornamental fish
- MeSH Terms
-
- Animals
- Fish Diseases*/diagnosis
- Intestines
- Nematoda*
- Polymerase Chain Reaction
- Zebrafish
- PubMed
- 36821594 Full text @ J. Fish Dis.
Citation
Schuster, C.J., Leong, C., Kasschau, K.D., Sharpton, T.J., Kent, M.L. (2023) Early detection of Pseudocapillaria tomentosa by qPCR in four lines of zebrafish, Danio rerio (Hamilton 1882). Journal of fish diseases. 46(6):619-627.
Abstract
The intestinal nematode Pseudocapillaria tomentosa in zebrafish (Danio rerio) causes profound intestinal lesions, emaciation and death and is a promoter of a common intestinal cancer in zebrafish. This nematode has been detected in zebrafish from about 15% of the laboratories. Adult worms are readily detected about 3 weeks after exposure by either histology or wet mount preparations of the intestine, and larval worms are inconsistently observed in fish before this time. A quantitative PCR (qPCR) test was recently developed to detect the worm in fish and water, and here we determined that the test on zebrafish intestines was effective for earlier detection. Four lines of zebrafish (AB, TU, 5D and Casper) were experimentally infected and evaluated by wet mounts and qPCR at 8, 15-, 22-, 31- and 44-day post-exposure (dpe). At the first two time points, only 8% of the wet mounts from exposed fish were identified as infected, while the same intestines screened by qPCR showed 78% positivity, with low and consistent cycle threshold (Ct) values at these times. Wet mounts at later time points showed a high prevalence of infection, but this was still surpassed by qPCR.
Genes / Markers
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Orthology
Engineered Foreign Genes
Mapping