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Hidden suppression of sex ratio distortion suggests Red queen dynamics between Wolbachia and its dwarf spider host

(2016) JOURNAL OF EVOLUTIONARY BIOLOGY. 29(8). p.1488-1494
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Abstract
Genetic conflict theory predicts strong selection for host nuclear factors suppressing endosymbiont effects on reproduction; however, evidence of these suppressors is currently scarce. This can either be caused by a low suppressor evolution rate, or if suppressors originate frequently, by rapid spread and concurrent masking of their activity by silencing the endosymbiont effect. To explore this, we use two populations of a dwarf spider with a similar female bias, caused by a Wolbachia infection. Using inter- and intrapopulation crosses, we determine that one of these populations demonstrates a higher suppressing capability towards Wolbachia despite having a similar population sex ratio. This suggests that spider and endosymbiont are locked in so-called red queen dynamics where, despite continuous coevolution, average fitness remains the same, hence hiding the presence of the suppressor. Finding different suppressor activity in populations that even lack phenotypic differentiation (i.e. similar sex ratio) further supports the hypothesis that suppressors originate often, but are often hidden by their own mode of action by countering endosymbiont effects.
Keywords
endosymbiont bacteria, sex ratio bias, spider, suppressor gene, Wolbachia, MALE-KILLING WOLBACHIA, EXPERIMENTAL COEVOLUTION, REPRODUCTIVE MANIPULATIONS, ENDOSYMBIONT INFECTIONS, INTRAGENOMIC CONFLICT, PARASITE, CARDINIUM, POPULATION, ARTHROPODS, DIVERSITY

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Citation

Please use this url to cite or link to this publication:

Chicago
Vanthournout, Bram, and Frederik Hendrickx. 2016. “Hidden Suppression of Sex Ratio Distortion Suggests Red Queen Dynamics Between Wolbachia and Its Dwarf Spider Host.” Journal of Evolutionary Biology 29 (8): 1488–1494.
APA
Vanthournout, B., & Hendrickx, F. (2016). Hidden suppression of sex ratio distortion suggests Red queen dynamics between Wolbachia and its dwarf spider host. JOURNAL OF EVOLUTIONARY BIOLOGY, 29(8), 1488–1494.
Vancouver
1.
Vanthournout B, Hendrickx F. Hidden suppression of sex ratio distortion suggests Red queen dynamics between Wolbachia and its dwarf spider host. JOURNAL OF EVOLUTIONARY BIOLOGY. 2016;29(8):1488–94.
MLA
Vanthournout, Bram, and Frederik Hendrickx. “Hidden Suppression of Sex Ratio Distortion Suggests Red Queen Dynamics Between Wolbachia and Its Dwarf Spider Host.” JOURNAL OF EVOLUTIONARY BIOLOGY 29.8 (2016): 1488–1494. Print.
@article{8122975,
  abstract     = {Genetic conflict theory predicts strong selection for host nuclear factors suppressing endosymbiont effects on reproduction; however, evidence of these suppressors is currently scarce. This can either be caused by a low suppressor evolution rate, or if suppressors originate frequently, by rapid spread and concurrent masking of their activity by silencing the endosymbiont effect. To explore this, we use two populations of a dwarf spider with a similar female bias, caused by a Wolbachia infection. Using inter- and intrapopulation crosses, we determine that one of these populations demonstrates a higher suppressing capability towards Wolbachia despite having a similar population sex ratio. This suggests that spider and endosymbiont are locked in so-called red queen dynamics where, despite continuous coevolution, average fitness remains the same, hence hiding the presence of the suppressor. Finding different suppressor activity in populations that even lack phenotypic differentiation (i.e. similar sex ratio) further supports the hypothesis that suppressors originate often, but are often hidden by their own mode of action by countering endosymbiont effects.},
  author       = {Vanthournout, Bram and Hendrickx, Frederik},
  issn         = {1010-061X},
  journal      = {JOURNAL OF EVOLUTIONARY BIOLOGY},
  language     = {eng},
  number       = {8},
  pages        = {1488--1494},
  title        = {Hidden suppression of sex ratio distortion suggests Red queen dynamics between Wolbachia and its dwarf spider host},
  url          = {http://dx.doi.org/10.1111/jeb.12861},
  volume       = {29},
  year         = {2016},
}

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