776
Effect of family structure and size on genomic selection accuracy in aquaculture breeding
A higher accuracy of prediction was obtained for within family genomic selection as compared to the conventional selection method. The accuracy of selection was higher when the family structure was 10x10 followed by 1x10 and 2x2 specifically for within family genomic selection. This was in accordance with the number of full sibs and half sibs produced which increased relationships within or across test and candidate sibs. In all scenarios, accuracy of selection increased as family size increases but the increase was moderate when family size was beyond 40-50 individuals per family. In addition, the benefit would be higher if more full sibs and half sibs are available in the test and candidate group.
Keywords:
Aquaculture
Within-Family Genomic selection
Breeding
Genetics
