- Combination of ACEI and ARB has a preferably additive effect.
- When SP and CGRP were added up, there was no additive effect.
- The effect on amylose content was mainly additive effect of Glu-D, locus.
- The effects of dominant genes were non-unidirection,with the dominant effect greater than additive effect.
- This might mean that the usual estimates of the QTL additive effects could be confounded by epistatic interactions and result in biased estimation.