Influential genes and proteins in dairycattle:
Genetic methods have been used to examine regions of the dairycattle genome that appear to have been under selection. A positivesignature of selection in a given region implies the genescontained therein are potentially important for aspects of milkproduction such as yield.
Two such genes found to be of importance in dairy cattle areDGAT1 (which encodes the fat biosynthesis enzymediacylglycerol o-acyltransferase 1) and GHR (which encodesthe growth hormone receptor).
44. Why might these two genes be important for milk production?
