Expression of Muscle-Specific Genes in Aquacultured Atlantic Salmon (Salmo salar L.) Fingerlings under Conditions of Different Lighting and Feeding Regimes.

Autor: Kuznetsova, M. V., Rodin, M. A., Shulgina, N. S., Krupnova, M. Yu., Kuritsyn, A. E., Murzina, S. A., Nemova, N. N.
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Zdroj: Journal of Evolutionary Biochemistry & Physiology; Jan2024, Vol. 60 Issue 1, p45-56, 12p
Abstrakt: Gene expression levels of the myosin heavy chain (myhc) and myosin light chain 2 (mlc2), myogenic regulatory transcription factors (myf5, myog, and myod1 paralogs), myostatin paralogs, and insulin-like growth factors 1 and 2 (igf1 and igf2) were studied in the muscles of salmon fingerlings farmed under different lighting and feeding conditions at a constant water temperature in the Republic of North Ossetia-Alania (Russian Federation). The combined effect of different lighting and feeding regimes affected myhc, mlc2, myod1a, myf5, myod1b, and myod1c gene expression. The individuals reared under constant lighting conditions were distinguished by higher expression levels of myf5, myhc and mlc2 genes compared to fish reared under natural light, which also corresponded to their higher growth rates. The expression levels of IGF genes varied in different ways throughout the experiment: igf1 gene expression constantly increased, while igf2 gene expression increased during the first month of a study and decreased thereafter. The results indicate differences in the processes of myogenesis regulation depending on lighting and feeding conditions. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index
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