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Do the benefits of polyandry scale with outbreeding?

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Do the benefits of polyandry scale with outbreeding? / Burdfield-Steel, Emily Rose; Auty, Sam; Shuker, David Michael.

In: Behavioral Ecology, Vol. 26, No. 5, 09.2015, p. 1423-1431.

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Harvard

Burdfield-Steel, ER, Auty, S & Shuker, DM 2015, 'Do the benefits of polyandry scale with outbreeding?' Behavioral Ecology, vol. 26, no. 5, pp. 1423-1431. https://doi.org/10.1093/beheco/arv103

APA

Burdfield-Steel, E. R., Auty, S., & Shuker, D. M. (2015). Do the benefits of polyandry scale with outbreeding? Behavioral Ecology, 26(5), 1423-1431. https://doi.org/10.1093/beheco/arv103

Vancouver

Burdfield-Steel ER, Auty S, Shuker DM. Do the benefits of polyandry scale with outbreeding? Behavioral Ecology. 2015 Sep;26(5):1423-1431. https://doi.org/10.1093/beheco/arv103

Author

Burdfield-Steel, Emily Rose ; Auty, Sam ; Shuker, David Michael. / Do the benefits of polyandry scale with outbreeding?. In: Behavioral Ecology. 2015 ; Vol. 26, No. 5. pp. 1423-1431.

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@article{fe2c40e3c83b481e95489ed6468148a1,
title = "Do the benefits of polyandry scale with outbreeding?",
abstract = "There have been many potential explanations put forward as to why polyandry often persists despite the multiple costs it can inflict on females. One such explanation is avoidance of costs associated with mating with genetically incompatible males. Genetic incompatibility can be thought of as a spectrum from individuals that are genetically too similar (inbreeding) to those that are toodissimilar (outbreeding or hybridization). Here we look for evidence that the level of outbreeding influences the benefits of polyandry in the seed bug Lygaeus equestris. Our system allows us to test for benefits of polyandry at levels of genetic similarity ranging from full siblings to heterospecifics, both in terms of egg production and hatching success. We found that while outbreeding levelappeared to have no effect on fitness for intra-specific matings, and polyandry did not appear to result in any increase in fertility or fecundity, hybridization with a closely-related species, L. simulans, carried considerable fitness costs. However, these costs could be rescued with a single mating to a conspecific. Thus, polyandry may be beneficial in populations that co-occur with closely-related species and where there is reproductive interference. However, within-species genetic incompatibility is unlikely to be the driving force behind polyandry in this species. Furthermore, the mechanism underlying this rescue of fertility remains unclear as manipulation of male cuticular hydrocarbon profile, a possible mechanism by which females can assess male identity, had no effect on female offspring production.",
keywords = "Polyandry, Reproductive interference, Sexual selection, Genetic compatability",
author = "Burdfield-Steel, {Emily Rose} and Sam Auty and Shuker, {David Michael}",
year = "2015",
month = "9",
doi = "10.1093/beheco/arv103",
language = "English",
volume = "26",
pages = "1423--1431",
journal = "Behavioral Ecology",
issn = "1045-2249",
publisher = "Oxford University Press",
number = "5",

}

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TY - JOUR

T1 - Do the benefits of polyandry scale with outbreeding?

AU - Burdfield-Steel, Emily Rose

AU - Auty, Sam

AU - Shuker, David Michael

PY - 2015/9

Y1 - 2015/9

N2 - There have been many potential explanations put forward as to why polyandry often persists despite the multiple costs it can inflict on females. One such explanation is avoidance of costs associated with mating with genetically incompatible males. Genetic incompatibility can be thought of as a spectrum from individuals that are genetically too similar (inbreeding) to those that are toodissimilar (outbreeding or hybridization). Here we look for evidence that the level of outbreeding influences the benefits of polyandry in the seed bug Lygaeus equestris. Our system allows us to test for benefits of polyandry at levels of genetic similarity ranging from full siblings to heterospecifics, both in terms of egg production and hatching success. We found that while outbreeding levelappeared to have no effect on fitness for intra-specific matings, and polyandry did not appear to result in any increase in fertility or fecundity, hybridization with a closely-related species, L. simulans, carried considerable fitness costs. However, these costs could be rescued with a single mating to a conspecific. Thus, polyandry may be beneficial in populations that co-occur with closely-related species and where there is reproductive interference. However, within-species genetic incompatibility is unlikely to be the driving force behind polyandry in this species. Furthermore, the mechanism underlying this rescue of fertility remains unclear as manipulation of male cuticular hydrocarbon profile, a possible mechanism by which females can assess male identity, had no effect on female offspring production.

AB - There have been many potential explanations put forward as to why polyandry often persists despite the multiple costs it can inflict on females. One such explanation is avoidance of costs associated with mating with genetically incompatible males. Genetic incompatibility can be thought of as a spectrum from individuals that are genetically too similar (inbreeding) to those that are toodissimilar (outbreeding or hybridization). Here we look for evidence that the level of outbreeding influences the benefits of polyandry in the seed bug Lygaeus equestris. Our system allows us to test for benefits of polyandry at levels of genetic similarity ranging from full siblings to heterospecifics, both in terms of egg production and hatching success. We found that while outbreeding levelappeared to have no effect on fitness for intra-specific matings, and polyandry did not appear to result in any increase in fertility or fecundity, hybridization with a closely-related species, L. simulans, carried considerable fitness costs. However, these costs could be rescued with a single mating to a conspecific. Thus, polyandry may be beneficial in populations that co-occur with closely-related species and where there is reproductive interference. However, within-species genetic incompatibility is unlikely to be the driving force behind polyandry in this species. Furthermore, the mechanism underlying this rescue of fertility remains unclear as manipulation of male cuticular hydrocarbon profile, a possible mechanism by which females can assess male identity, had no effect on female offspring production.

KW - Polyandry

KW - Reproductive interference

KW - Sexual selection

KW - Genetic compatability

U2 - 10.1093/beheco/arv103

DO - 10.1093/beheco/arv103

M3 - Article

VL - 26

SP - 1423

EP - 1431

JO - Behavioral Ecology

T2 - Behavioral Ecology

JF - Behavioral Ecology

SN - 1045-2249

IS - 5

ER -

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ID: 195568826