Expansion of the HSFY Gene Family in Cattle
Author Information
Author(s): Hamilton Christine K., Revay Tamas, Domander Robin, Favetta Laura A., King W. Allan
Primary Institution: Department of Biomedical Sciences, University of Guelph, Guelph, Ontario, Canada
Hypothesis
The study aims to determine the genomic copy number of the HSFY family in Canadian Holstein cattle and its expression pattern.
Conclusion
The HSFY gene family is largely expanded in cattle with approximately 70 copies, and its expression is testis-specific.
Supporting Evidence
- The average HSFY copy number among all bulls measured was 73.3±0.8.
- HSFY expression was found to be restricted to the testis.
- HSFY mRNA levels correlated positively with markers of spermatogonial and spermatocyte cells.
Takeaway
Cattle have a lot of copies of a gene called HSFY that helps with making sperm, and this gene only works in the testicles.
Methodology
Real-time PCR and fluorescence in situ hybridization (FISH) were used to analyze the HSFY gene copy number and expression.
Limitations
The study did not address how many of the HSFY copies are actually functional.
Participant Demographics
Canadian Holstein bulls.
Statistical Information
P-Value
p<0.0001
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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