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ACAA2 and FASN polymorphisms affect the fatty acid profile of Chios sheep milk

Published online by Cambridge University Press:  03 February 2020

Simoni Symeou ,
Ouranios Tzamaloukas ,
Georgios Banos  and
Despoina Miltiadou
Simoni Symeou
Affiliation:
Department of Agricultural Sciences, Biotechnology and Food Sciences, Cyprus University of Technology, P.O. Box 50329, Lemesos, Cyprus
Ouranios Tzamaloukas
Affiliation:
Department of Agricultural Sciences, Biotechnology and Food Sciences, Cyprus University of Technology, P.O. Box 50329, Lemesos, Cyprus
Georgios Banos
Affiliation:
Department of Animal and Veterinary Sciences, Scotland's Rural College, EH25 9RG, Midlothian, UK
Despoina Miltiadou*
Affiliation:
Department of Agricultural Sciences, Biotechnology and Food Sciences, Cyprus University of Technology, P.O. Box 50329, Lemesos, Cyprus
*
Author for correspondence: Despoina Miltiadou, Email: [email protected]
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Abstract

The objective of the research reported in this research communication was the identification and association of single nucleotide polymorphisms (SNP) in the ovine DGAT1, FASN, SCD1 and ACAA2 genes with milk fat percentage and fatty acid (FA) content. Three consecutive monthly milk samplings were obtained from a total of 429 purebred Chios ewes during mid-lactation. Genotypic data were jointly analyzed with 1184 fat content and 37 718 FA percentage records using mixed models. The 3′ untranslated region (UTR) of the DGAT1 gene and the 5′ and 3′UTRs of the SCD1 gene appeared to be monomorphic. The FASN g.14777C>T SNP on exon 31 was associated with C13:0 and the ACAA2 g.2982T>C SNP on the 3′UTR was associated with C9:0, C11:0, C12:1 cis-9, C13:0 and the ω6/ω3 index, while fat percentage was not affected by the identified SNPs. The results could be useful for breeding programs aiming to improve the quality and nutritional value of ovine milk.

Keywords

ACAA2DGAT1FASNfatty acidsSCD1
Type
Research Article
Information
Journal of Dairy Research , Volume 87 , Issue 1 , February 2020 , pp. 23 - 26
Copyright
Copyright © Hannah Dairy Research Foundation 2020

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