Effects of Dietary Lipid Composition and Fatty Acid Desaturase 2 Expression in Broodstock Gilthead Sea Bream on Lipid Metabolism-Related Genes and Methylation of the Gene Promoter in Their Offspring

Overview

Journal Int J Mol Sci

Publisher MDPI

Specialties Biochemistry
Chemistry
Molecular Biology

Date 2019 Dec 15

PMID 31835772

Citations 10

Authors

Serhat Turkmen

Erick Perera

Maria J Zamorano

Paula Simo-Mirabet

Hanlin Xu

Jaume Perez-Sanchez

Marisol Izquierdo

Affiliations

Soon will be listed here.

Abstract

Polyunsaturated fatty acids (PUFA) in parental diets play a key role in regulating LC-PUFA metabolism of the offspring. However, it is not clear whether this metabolic regulation is driven by the precursors presented in the diet or by the parental ability to synthesize them. To elucidate this, broodstocks of gilthead sea bream with different blood expression levels of , which encodes for the rate-limiting enzyme in the LC-PUFA synthesis pathway, were fed either a diet supplemented with alpha-linolenic acid (ALA, 18:3) or a control diet. The progenies obtained from these four experimental groups were then challenged with a low LC-PUFA diet at the juvenile stage. Results showed that the offspring from parents with high expression presented higher growth and improved utilization of low LC-PUFA diets compared to the offspring from parents with low expression. Besides, an ALA-rich diet during the gametogenesis caused negative effects on the growth of the offspring. The epigenetic analysis demonstrated that methylation in the promoter of of the offspring was correlated with the parental expression levels and type of the broodstock diet.

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