Temporal and genetic variation in female aggression after mating

Aggression between individuals of the same sex is almost ubiquitous across the animal kingdom. Winners of intrasexual contests often garner considerable fitness benefits, through greater access to mates, food, or social dominance. In females, aggression is often tightly linked to reproduction, with...

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Main Authors: Bath, E, Biscocho, ER, Easton-Calabria, A, Wigby, S
Format: Journal article
Language:English
Published: Public Library of Science 2020
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author Bath, E
Biscocho, ER
Easton-Calabria, A
Wigby, S
author_facet Bath, E
Biscocho, ER
Easton-Calabria, A
Wigby, S
author_sort Bath, E
collection OXFORD
description Aggression between individuals of the same sex is almost ubiquitous across the animal kingdom. Winners of intrasexual contests often garner considerable fitness benefits, through greater access to mates, food, or social dominance. In females, aggression is often tightly linked to reproduction, with females displaying increases in aggressive behavior when mated, gestating or lactating, or when protecting dependent offspring. In the fruit fly, Drosophila melanogaster, females spend twice as long fighting over food after mating as when they are virgins. However, it is unknown when this increase in aggression begins or whether it is consistent across genotypes. Here we show that aggression in females increases between 2 to 4 hours after mating and remains elevated for at least a week after a single mating. In addition, this increase in aggression 24 hours after mating is consistent across three diverse genotypes, suggesting this may be a universal response to mating in the species. We also report here the first use of automated tracking and classification software to study female aggression in Drosophila and assess its accuracy for this behavior. Dissecting the genetic diversity and temporal patterns of female aggression assists us in better understanding its generality and adaptive function, and will facilitate the identification of its underlying mechanisms.
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spelling oxford-uuid:edb9c06c-7c9a-4a0e-9f08-48d2c7cf18822022-03-27T11:27:22ZTemporal and genetic variation in female aggression after matingJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:edb9c06c-7c9a-4a0e-9f08-48d2c7cf1882EnglishSymplectic ElementsPublic Library of Science2020Bath, EBiscocho, EREaston-Calabria, AWigby, SAggression between individuals of the same sex is almost ubiquitous across the animal kingdom. Winners of intrasexual contests often garner considerable fitness benefits, through greater access to mates, food, or social dominance. In females, aggression is often tightly linked to reproduction, with females displaying increases in aggressive behavior when mated, gestating or lactating, or when protecting dependent offspring. In the fruit fly, Drosophila melanogaster, females spend twice as long fighting over food after mating as when they are virgins. However, it is unknown when this increase in aggression begins or whether it is consistent across genotypes. Here we show that aggression in females increases between 2 to 4 hours after mating and remains elevated for at least a week after a single mating. In addition, this increase in aggression 24 hours after mating is consistent across three diverse genotypes, suggesting this may be a universal response to mating in the species. We also report here the first use of automated tracking and classification software to study female aggression in Drosophila and assess its accuracy for this behavior. Dissecting the genetic diversity and temporal patterns of female aggression assists us in better understanding its generality and adaptive function, and will facilitate the identification of its underlying mechanisms.
spellingShingle Bath, E
Biscocho, ER
Easton-Calabria, A
Wigby, S
Temporal and genetic variation in female aggression after mating
title Temporal and genetic variation in female aggression after mating
title_full Temporal and genetic variation in female aggression after mating
title_fullStr Temporal and genetic variation in female aggression after mating
title_full_unstemmed Temporal and genetic variation in female aggression after mating
title_short Temporal and genetic variation in female aggression after mating
title_sort temporal and genetic variation in female aggression after mating
work_keys_str_mv AT bathe temporalandgeneticvariationinfemaleaggressionaftermating
AT biscochoer temporalandgeneticvariationinfemaleaggressionaftermating
AT eastoncalabriaa temporalandgeneticvariationinfemaleaggressionaftermating
AT wigbys temporalandgeneticvariationinfemaleaggressionaftermating