Cloning of somatolactin alpha,beta forms and the somatolactin receptor in Atlantic salmon: Seasonal expression profile in pituitary and ovary of maturing female broodstock |
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Authors: | Susana Benedet Björn Thrandur Björnsson Geir Lasse Taranger Eva Andersson |
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Institution: | (1) Department of Zoology/Zoophysiology, University of Gothenburg, Box 463, 40530 Gothenburg, Sweden;(2) Institute of Marine Research, PO Box 1870, 5817 Nordnes, Bergen, Norway |
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Abstract: | Background Somatolactin (Sl) is a fish specific adenohypophyseal peptide hormone related to growth hormone (Gh). Some species, including
salmonids, possess two forms: Sl alpha and Sl beta. The somatolactin receptor (slr) is closely related to the growth hormone
receptor (ghr). Sl has been ascribed many physiological functions, including a role in sexual maturation. In order to clarify
the role of Sl in the sexual maturation of female Atlantic salmon (Salmo salar), the full length cDNAs of slr, Sl alpha and
Sl beta were cloned and their expression was studied throughout a seasonal reproductive cycle using real-time quantitative
PCR (RTqPCR). |
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