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Research article2003Peer reviewed

Cloning and sequencing of FSH-β and LH-β subunits and changes in their expression during the reproductive cycle in the three-spined stickleback, Gasterosteus aculeatus

Hellqvist, A; Bornestaf, C; Borg, B; Schmitz, M

Abstract

To achieve a better understanding of the role of gonadotropins (GTHs) in the stickleback we have cloned the full-length cDNAs of the -subunits of follicle stimultating hormone (FSH) and luteinizing hormone (LH), and analyzed the expression during the seasonal cycle. In females, LH- levels were low during winter and early spring, increased to a peak in late May and declined to low levels again in July. FSH-b expression peaked earlier, in January and declined spring. In males, LH-b expression peaked in May. During June-September, when spermatogenesis occurs, LH-b levels were very low. FSH-b expression peaked earlier, in January, and reached the lowest levels in July. Thus, when spermatogenesis starts, the expression of both GTH-b mRNAs display their lowest levels

Published in

Fish Physiology and Biochemistry
2003, volume: 28, number: 1-4, pages: 93-94
Publisher: Springer Verlag (Germany)

SLU Authors

  • Schmitz, Monica

    • Department of Aquaculture, Swedish University of Agricultural Sciences

UKÄ Subject classification

Fish and Aquacultural Science

Publication identifier

  • DOI: https://doi.org/10.1023/B:FISH.0000030485.70984.f2

Permanent link to this page (URI)

https://res.slu.se/id/publ/4288