Zebrafish Gene Expression During Sex Differentiation
Author Information
Author(s): Jørgensen Anne, Morthorst Jane E, Andersen Ole, Rasmussen Lene J, Bjerregaard Poul
Primary Institution: Department of Science, Systems and Models, Roskilde University
Hypothesis
The study aims to determine the precise timing of expression of six genes associated with sex differentiation in zebrafish.
Conclusion
The first significant peak in gene expression during the investigated period was dmrt1 at 10 days post hatch, indicating its involvement in early gonadal sex differentiation of males.
Supporting Evidence
- The expression of genes expected to be high in males and females was segregated into two groups with more than 10 times difference in expression levels.
- 78% of individuals showed high or low expression of male genes, while 81% showed high or low expression of female genes.
- 56% of all five genes showed expression patterns expected for either male or female.
Takeaway
The study looked at how certain genes in zebrafish change as they develop into males or females, finding that some genes are more active at specific times.
Methodology
Quantitative real-time PCR was used to analyze gene expression in individual zebrafish during the sex determination and differentiation period.
Statistical Information
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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