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Mitonuclear Ecology$
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Geoffrey E. Hill

Print publication date: 2019

Print ISBN-13: 9780198818250

Published to Oxford Scholarship Online: June 2019

DOI: 10.1093/oso/9780198818250.001.0001

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Mitonuclear mate choice

Mitonuclear mate choice

(p.179) 8 Mitonuclear mate choice
Mitonuclear Ecology

Geoffrey E. Hill

Oxford University Press

At each new generation, sexual reproduction creates new combinations of nuclear and mitochondrial genes, and the potential arises for mitonuclear incompatibilities and reduced fitness. Sexual selection plays a key role in maintaining mitonuclear coadaptation across generations because it enables pre-zygotic sorting for coadapted mitonuclear genotypes. In this chapter, I present data that individuals engaged in mate choice select partners with correct species-typical mitochondrial and nuclear genotypes as well as individuals with highly functional cellular respiration. The implication is that mate choice for compatible nuclear and mitochondrial genes can play a significant role in generating the patterns of ornamentation and preferences observed in animals.

Keywords:   Sexual selection, good genes model, indicator model, species recognition, reinforcement, barcode gap, ornamentation gap, pre-zygotic selection, post-zygotic selection, genetic linkage

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