Fatty Acid SNP Interaction Analysis in Angus Sired Beef Cattle

  • Luke M. Kramer (Iowa State University)
  • James E. Koltes (Iowa State University)
  • Eric R. Fritz-Waters (Iowa State University)
  • Mary Sue Mayes (Iowa State University)
  • Alysta Markey (Iowa State University)
  • Mahdi Saatchi (Iowa State University)
  • Nathan T. Weeks (Iowa State University)
  • James M. Reecy (Iowa State University)


The triacylglyceride (TAG) fatty acid content in meat from Angus-sired cattle was analyzed for non-additive genetic effects. A total of 11,482 significant DNA marker interactions (false discovery rate [FDR] < 0.05) were detected across thirty-seven different TAG fatty acids. Interactions were not evenly distributed amongst all fatty acids analyzed, and types of interactions (additive-by-additive, additive-by-dominance, and dominance-by-dominance) varied within each individual fatty acid. These results indicate that it may be possible to account for additional genetic variance amongst TAG fatty acids over and above individual markers.

Keywords: ASL R2952, Animal Science

How to Cite:

Kramer, L. M., Koltes, J. E., Fritz-Waters, E. R., Mayes, M. S., Markey, A., Saatchi, M., Weeks, N. T. & Reecy, J. M., (2015) “Fatty Acid SNP Interaction Analysis in Angus Sired Beef Cattle”, Iowa State University Animal Industry Report 12(1). doi:

Download pdf



Published on
01 Jan 2015
Peer Reviewed