Intergenomic interactions affect female reproduction: evidence from introgression and inbreeding depression in a haplodiploid mite

Heredity
M-J Perrot-MinnotM Navajas

Abstract

Nuclear and cytoplasmic genomes can coevolve antagonistically or harmoniously to affect fitness. One commonly used test for nuclear-cytoplasmic coadaptation relies on the breakup of coadapted gene complexes by introgression, potentially resulting in an increased frequency of nuclear alleles in deleterious interaction with an alien cytoplasm. We investigated the phenotypic effect of such genes on female reproduction in outbred and inbred introgressed lines of the haplodiploid mite Tetranychus urticae. Introgression changed female lifetime fecundity and increased male production, in ways suggesting a control of fecundity by nuclear genes. Conversely introgression reduced the fertilization rate, possibly due to sperm-egg incompatibility or maternal effects. The intensity of inbreeding depression expressed as a reduction in fecundity was more severe in introgressed females than in nonintrogressed ones, giving evidence for recessive interacting alleles contributing to residual nucleo-cytoplasmic incompatibility. Overall, our data suggest recessive negative interactions between nuclear and cytoplasmic genes. This study is the first report of a contribution of nuclear polymorphism within a population to deleterious interactions with a...Continue Reading

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Citations

Mar 15, 2011·Experimental & Applied Acarology·N S H TienM Egas
Jun 5, 2008·Heredity·T Koevoets, L W Beukeboom
Feb 16, 2010·Physiological and Biochemical Zoology : PBZ·Jennifer R OlsonJoseph B Williams
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Sep 30, 2010·Psychophysiology·Mattie Tops, Maarten A S Boksem
Apr 17, 2014·The Journal of Experimental Biology·T Yoshioka, S Yano
Jul 11, 2021·Communications Biology·Ernesto Villacis-PerezThomas Van Leeuwen
Jun 23, 2021·Evolution; International Journal of Organic Evolution·Miguel A CruzFlore Zélé

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