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

Simoni Symeou, Ouranios Tzamaloukas, Georgios Banos, Despoina Miltiadou*

*Corresponding author for this work

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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.

Original languageEnglish
Pages (from-to)23-26
Number of pages4
JournalJournal of Dairy Research
Volume87
Issue number1
Early online date3 Feb 2020
DOIs
Publication statusFirst published - 3 Feb 2020

Bibliographical note

© Hannah Dairy Research Foundation 2020

Keywords

  • ACAA2
  • DGAT1
  • FASN
  • fatty acids
  • SCD1

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