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The effect of polyandry on a distorter system with differential viabilities in the sexes


Manser, Andri; Lindholm, Anna K; König, Barbara; Bagheri, Homayoun C (2012). The effect of polyandry on a distorter system with differential viabilities in the sexes. Communicative & Integrative Biology, 5(6):550-552.

Abstract

The presence of selfish genetic elements can have fatal consequences for populations that harbor them. In the well known t haplotype in wild house mice, large proportions of the population die from t/t recessive lethal effects. Due to strong advantages at the gamete level (drive), t haplotypes nevertheless occur at substantial frequencies. The stable presence of a lethal is not the only effect of the t. It also distorts the fate of mutations that differentially affect male and female survival and reproduction (such as in sexual conflict), by giving male selective effects a strong advantage over female selective effects. In a recent study, we proposed polyandry as a potential counterstrategy against t deleterious effects. Here, we show that (1) the efficiency of polyandry in reducing the t frequency strongly depends on the selective context and (2) polyandry helps to reduce male-biased leverage in sex dependent selection.

The presence of selfish genetic elements can have fatal consequences for populations that harbor them. In the well known t haplotype in wild house mice, large proportions of the population die from t/t recessive lethal effects. Due to strong advantages at the gamete level (drive), t haplotypes nevertheless occur at substantial frequencies. The stable presence of a lethal is not the only effect of the t. It also distorts the fate of mutations that differentially affect male and female survival and reproduction (such as in sexual conflict), by giving male selective effects a strong advantage over female selective effects. In a recent study, we proposed polyandry as a potential counterstrategy against t deleterious effects. Here, we show that (1) the efficiency of polyandry in reducing the t frequency strongly depends on the selective context and (2) polyandry helps to reduce male-biased leverage in sex dependent selection.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Institute of Evolutionary Biology and Environmental Studies
Dewey Decimal Classification:570 Life sciences; biology
590 Animals (Zoology)
Language:English
Date:November 2012
Deposited On:24 Jan 2013 10:53
Last Modified:05 Apr 2016 16:19
Publisher:Landes Bioscience
ISSN:1942-0889
Funders:Forschungskredit Universität Zürich, SNF grant 310030M_138389
Free access at:Official URL. An embargo period may apply.
Publisher DOI:https://doi.org/10.4161/cib.21955
Official URL:http://www.landesbioscience.com/journals/cib/2012CIB0051R.pdf
PubMed ID:23336023
Permanent URL: https://doi.org/10.5167/uzh-70525

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