Schmitz, Monica
- Department of Aquaculture, Swedish University of Agricultural Sciences
To achieve a better understanding of the role of gonadotropins (GTHs) in the stickleback we have cloned the full-length cDNAs of the beta-subunits of follicle stimulating hormone (FSH) and luteinizing hormone (LH), and analysed the expression during the seasonal cycle. In females, LH-beta levels were low during winter and early spring, increased to a peak in late May and declined to low levels again in July. FSH-beta expression peaked earlier, in January and declined spring. In males, LH-beta expression peaked in May. During June-September, when spermatogenesis occurs, LH-beta levels were very low. FSH-beta expression peaked earlier, in January, and reached the lowest levels in July. Thus, when spermatogenesis starts, the expression of both GTH-beta mRNAs display their lowest levels.
Fish Physiology and Biochemistry
2003, volume: 28, number: 45661, pages: 93-94
Publisher: Springer Verlag (Germany)
Fish and Aquacultural Science
https://res.slu.se/id/publ/4288