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1 October 2006 EPISTASIS AND DOMINANCE: EVIDENCE FOR DIFFERENTIAL EFFECTS IN LIFE-HISTORY VERSUS MORPHOLOGICAL TRAITS
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Abstract

Dominance and epistatic effects are predicted to be larger in life-history than in morphological traits. We test these predictions using published results from line cross analyses. We find that dominance is found in more than 95% of traits, regardless of the type of trait, but that the magnitude of the effect in relation to the additive effect is much greater in life-history than in morphological traits. Epistatic effects were detected more often in life-history than in morphological traits (79% and 67%, respectively). We also test for a difference in the magnitude of the effects by comparing the ratio of the nonadditive components separately to the additive component. For both dominance and epistatic components, the ratio of the nonadditive component to additive effects in life-history traits is approximately twice as large as that for morphological traits.

Derek A. Roff and Kevin Emerson "EPISTASIS AND DOMINANCE: EVIDENCE FOR DIFFERENTIAL EFFECTS IN LIFE-HISTORY VERSUS MORPHOLOGICAL TRAITS," Evolution 60(10), (1 October 2006). https://doi.org/10.1554/06-165.1
Received: 16 March 2006; Accepted: 11 July 2006; Published: 1 October 2006
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