Abstract:
:Changing bovine milk fatty acid (FA) composition through selection can decrease saturated FA (SFA) consumption, improve human health and provide a means for manipulating processing properties of milk. Our study determined associations between milk FA composition and genes from triacylglycerol (TAG) biosynthesis pathway. The GC dinucleotide allele of diacylglycerol O-acyltransferase 1:g.10433-10434AA >GC was associated with lower palmitic acid (16:0) concentration but higher oleic (18:1 cis-9), linoleic (18:2 cis-9, cis-12) acid concentrations, and elongation index. Accordingly, the GC dinucleotide allele was associated with lower milk fat percentage and SFA concentrations but higher monounsaturated FA and polyunsaturated FA (PUFA) concentrations. The glycerol-3-phosphate acyltransferase, mitochondrial haplotypes were associated with higher myristoleic acid (14:1 cis-9) concentration and C14 desaturation index. The 1-acylglycerol-3-phosphate acyltransferase 1 haplotypes were associated with higher PUFA and linoleic acid concentrations. The results of this study provide information for developing genetic tools to modify milk FA composition in dairy cattle.
journal_name
Genomicsjournal_title
Genomicsauthors
Nafikov RA,Schoonmaker JP,Korn KT,Noack K,Garrick DJ,Koehler KJ,Minick-Bormann J,Reecy JM,Spurlock DE,Beitz DCdoi
10.1016/j.ygeno.2014.10.001subject
Has Abstractpub_date
2014-12-01 00:00:00pages
572-81issue
6 Pt Beissn
0888-7543issn
1089-8646pii
S0888-7543(14)00193-1journal_volume
104pub_type
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