Do established SNPs affecting bovine milk traits exist in other dairy ruminants?

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

“…Based on studies performed mainly in cattle, some candidate genes putatively affecting the milk fat and FA content could include the acyl-CoA:diacylglycerol acyltransferase 1 (DGAT1), the fatty acid synthase ( FASN ) and the steroyl-CoA desaturase 1 ( SCD1 ) genes. Although the exon harboring DGAT1 K232A single nucleotide polymorphism (SNP), well established to affect milk fat and FA content in dairy cattle (Schennink et al ., 2008), was monomorphic in some sheep breeds (Scatà et al ., 2009; Miltiadou et al ., 2010), two SNPs outside the coding region of the ovine DGAT1 gene were associated with milk fat content (Scatà et al ., 2009) and a SNP in exon 17 affected milk FA traits (Dervishi et al ., 2015). SNPs within the FASN gene, catalyzing the de novo synthesis of small to medium chain FAs, have been associated with the bovine and ovine milk FA content (Crisà et al ., 2010), while the SCD1 gene affecting the milk FA profile in dairy cows, is involved in mammary FA desaturation (Schennink et al ., 2008).…”