Genetic Map of Brook Charr and Comparisons with Other Salmonids
Author Information
Author(s): Timusk Evan R, Ferguson Moira M, Moghadam Hooman K, Norman Joseph D, Wilson Chris C, Danzmann Roy G
Primary Institution: Department of Integrative Biology, University of Guelph
Hypothesis
Brook charr linkage groups will share a high degree of homology with Arctic charr due to the lack of major chromosomal rearrangements.
Conclusion
The study found that linkage group arm arrangements are largely retained among brook charr, Arctic charr, and rainbow trout.
Supporting Evidence
- 46 out of 50 expected linkage group arms in brook charr were identified.
- Polymorphisms in chromosome structure were observed in some individuals.
- Significant differences in recombination rates were detected between sexes.
Takeaway
Scientists made a map of brook charr genes and found that their gene arrangement is similar to other fish like Arctic charr and rainbow trout.
Methodology
A genetic linkage map for brook charr was constructed using 103 primer sets to identify linkage groups and compare them with Arctic charr and rainbow trout.
Limitations
Not all chromosome arms are currently mapped, and the genetic map may represent only about 20% of the brook charr genome.
Participant Demographics
Brook charr from Hill's Lake and Lake Nipigon strains.
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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