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Intragroup and intragenomic conflict over chemical defense against predators

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Intragroup and intragenomic conflict over chemical defense against predators. / Best, Rebekah; Ruxton, Graeme D.; Gardner, Andy.

In: Ecology and Evolution, Vol. 8, No. 6, 03.2018, p. 3322-3329.

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Best, R, Ruxton, GD & Gardner, A 2018, 'Intragroup and intragenomic conflict over chemical defense against predators' Ecology and Evolution, vol. 8, no. 6, pp. 3322-3329. https://doi.org/10.1002/ece3.3926

APA

Best, R., Ruxton, G. D., & Gardner, A. (2018). Intragroup and intragenomic conflict over chemical defense against predators. Ecology and Evolution, 8(6), 3322-3329. https://doi.org/10.1002/ece3.3926

Vancouver

Best R, Ruxton GD, Gardner A. Intragroup and intragenomic conflict over chemical defense against predators. Ecology and Evolution. 2018 Mar;8(6):3322-3329. https://doi.org/10.1002/ece3.3926

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Best, Rebekah ; Ruxton, Graeme D. ; Gardner, Andy. / Intragroup and intragenomic conflict over chemical defense against predators. In: Ecology and Evolution. 2018 ; Vol. 8, No. 6. pp. 3322-3329.

Bibtex - Download

@article{6ffd41e83fb9478692274cee34ec881c,
title = "Intragroup and intragenomic conflict over chemical defense against predators",
abstract = "Insects are often chemically-defended against predators. There is considerable evidence for a group-beneficial element to their defences, and an associated potential for individuals to curtail their own investment in costly defence whilst benefitting from the investments of others, termed “automimicry”. Although females in chemically-defended taxa often lay their eggs in clusters, leading to siblings living in close proximity, current models of automimicry have neglected kin-selection effects, which may be expected to curb the evolution of such selfishness. Here we develop a general theory of automimicry that explicitly incorporates kin selection. We investigate how female promiscuity modulates intragroup and intragenomic conflicts over investment into chemical defence, finding that individuals are favoured to invest less than is optimal for their group, and that maternal-origin genes favour greater investment than do paternal-origin genes. We translate these conflicts into readily-testable predictions concerning gene-expression patterns and the phenotypic consequences of genomic perturbations, and discuss how our results may inform gene discovery in relation to economically-important agricultural products.",
keywords = "Automimicry, Cochineal, Genomic imprinting, Inclusive fitness, Kin selection, Predation",
author = "Rebekah Best and Ruxton, {Graeme D.} and Andy Gardner",
note = "AG is supported by a NERC Independent Research Fellowship (NE/K009524/1).",
year = "2018",
month = "3",
doi = "10.1002/ece3.3926",
language = "English",
volume = "8",
pages = "3322--3329",
journal = "Ecology and Evolution",
issn = "2045-7758",
publisher = "John Wiley & Sons, Ltd.",
number = "6",

}

RIS (suitable for import to EndNote) - Download

TY - JOUR

T1 - Intragroup and intragenomic conflict over chemical defense against predators

AU - Best, Rebekah

AU - Ruxton, Graeme D.

AU - Gardner, Andy

N1 - AG is supported by a NERC Independent Research Fellowship (NE/K009524/1).

PY - 2018/3

Y1 - 2018/3

N2 - Insects are often chemically-defended against predators. There is considerable evidence for a group-beneficial element to their defences, and an associated potential for individuals to curtail their own investment in costly defence whilst benefitting from the investments of others, termed “automimicry”. Although females in chemically-defended taxa often lay their eggs in clusters, leading to siblings living in close proximity, current models of automimicry have neglected kin-selection effects, which may be expected to curb the evolution of such selfishness. Here we develop a general theory of automimicry that explicitly incorporates kin selection. We investigate how female promiscuity modulates intragroup and intragenomic conflicts over investment into chemical defence, finding that individuals are favoured to invest less than is optimal for their group, and that maternal-origin genes favour greater investment than do paternal-origin genes. We translate these conflicts into readily-testable predictions concerning gene-expression patterns and the phenotypic consequences of genomic perturbations, and discuss how our results may inform gene discovery in relation to economically-important agricultural products.

AB - Insects are often chemically-defended against predators. There is considerable evidence for a group-beneficial element to their defences, and an associated potential for individuals to curtail their own investment in costly defence whilst benefitting from the investments of others, termed “automimicry”. Although females in chemically-defended taxa often lay their eggs in clusters, leading to siblings living in close proximity, current models of automimicry have neglected kin-selection effects, which may be expected to curb the evolution of such selfishness. Here we develop a general theory of automimicry that explicitly incorporates kin selection. We investigate how female promiscuity modulates intragroup and intragenomic conflicts over investment into chemical defence, finding that individuals are favoured to invest less than is optimal for their group, and that maternal-origin genes favour greater investment than do paternal-origin genes. We translate these conflicts into readily-testable predictions concerning gene-expression patterns and the phenotypic consequences of genomic perturbations, and discuss how our results may inform gene discovery in relation to economically-important agricultural products.

KW - Automimicry

KW - Cochineal

KW - Genomic imprinting

KW - Inclusive fitness

KW - Kin selection

KW - Predation

U2 - 10.1002/ece3.3926

DO - 10.1002/ece3.3926

M3 - Article

VL - 8

SP - 3322

EP - 3329

JO - Ecology and Evolution

T2 - Ecology and Evolution

JF - Ecology and Evolution

SN - 2045-7758

IS - 6

ER -

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