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Mate ChoiceThe Evolution of Sexual Decision Making from Microbes to Humans$
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Gil G. Rosenthal

Print publication date: 2017

Print ISBN-13: 9780691150673

Published to Princeton Scholarship Online: May 2018

DOI: 10.23943/princeton/9780691150673.001.0001

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Variation I: Genetics

Variation I: Genetics

(p.263) Chapter 10 Variation I: Genetics
Mate Choice

Gil G. Rosenthal

Princeton University Press

This chapter reviews the main approaches for characterizing preference genetics. Approaches to understanding the genetics underlying preferences (or any other phenotype) take two broad forms. The first approach consists of attempts to identify particular genes or genomic regions associated with preference variation; for preferences, this is typically done using so-called forward genetics, whereby variation in phenotype is correlated with variation in genotype. Alternatively, the effects of candidate genes on preference can be characterized using reverse genetics, whereby gene structure or function is altered to test its effect on phenotype. The second approach encompasses quantitative genetic studies that assume that the underlying genetic variation is continuous and additive. Quantitative genetic models often assume an infinite number of loci each contributing infinitely small positive or negative effect, summing to determine trait value.

Keywords:   mate choice, preference genetics, forward genetics, reverse genetics, genetic models

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