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The early-life environment of a pig shapes the phenotypes of its social partners in adulthood

Canario, Laurianne and Lundeheim, Nils and Bijma, Piter (2017). The early-life environment of a pig shapes the phenotypes of its social partners in adulthood. Heredity. 118, 534-541
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Abstract

Social interactions among individuals are abundant, both in natural and domestic populations, and may affect phenotypes of individuals. Recent research has demonstrated that the social effect of an individual on the phenotype of its social partners may have a genetic component, known as an indirect genetic effect (IGE). Little is known, however, of nongenetic factors underlying such social effects. Early-life environments often have large effects on phenotypes of the individuals themselves later in life. Offspring development in many mammalian species, for example, depends on interactions with the mother and siblings. In domestic pigs, individuals sharing the same juvenile environment develop similar body weight later in life. We, therefore, hypothesized that offspring originating from the same early-life environment also develop common social skills that generate early-life social effects (ELSEs) that affect the phenotypes of their social partners later in life. We, therefore, quantified IGEs and ELSEs on growth in domestic pigs. Results show that individuals from the same early-life environment express similar social effects on the growth of their social partners, and that such ELSEs shape the growth rate of social partners more than IGEs. Thus, the social skills that individuals develop in early life have a long-lasting impact on the phenotypes of social partners. Early-life and genetic social effects were independent of the corresponding direct effects of offspring on their own growth, indicating that individuals may enhance the growth of their social partners without a personal cost. Our findings also illustrate how research devoted to quantifying IGEs may miss nongenetic and potentially confounded social mechanisms which may bias the estimates of IGEs.

Authors/Creators:Canario, Laurianne and Lundeheim, Nils and Bijma, Piter
Title:The early-life environment of a pig shapes the phenotypes of its social partners in adulthood
Series/Journal:Heredity (1365-2540)
Year of publishing :2017
Volume:118
Page range:534-541
Number of Pages:8
Publisher:Nature Publishing Group
ISSN:1365-2540
Language:English
Publication Type:Journal article
Refereed:Yes
Article category:Scientific peer reviewed
Version:Published version
Full Text Status:Public
Agris subject categories.:L Animal production > L10 Animal genetics and breeding
Subjects:(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 402 Animal and Dairy Science > Animal and Dairy Science.
Keywords:pigs, phenotypes, genetics
URN:NBN:urn:nbn:se:slu:epsilon-e-4225
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-e-4225
Additional ID:
Type of IDID
DOI10.1038/hdy.2017.3
Web of Science (WoS)000401023700004
ID Code:14382
Faculty:VH - Faculty of Veterinary Medicine and Animal Science
Department:(VH) > Dept. of Animal Breeding and Genetics
Deposited By: SLUpub Connector
Deposited On:08 Jun 2017 06:54
Metadata Last Modified:08 Jun 2017 06:54

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