Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 523340
Title Data from: Direct and indirect genetic effects in life history traits of flour beetles (Tribolium castaneum)
Author(s) Ellen, E.D.; Peeters, K.L.M.; Verhoeven, M.T.W.; Gols, R.; Harvey, J.A.; Wade, M.J.; Dicke, M.; Bijma, P.
DOI https://doi.org/10.5061/dryad.b58r0
Department(s) Animal Breeding and Genetics
WIAS
Adaptation Physiology
LR - Animal Nutrition
Laboratory of Entomology
PE&RC
EPS
Publication type Dataset
Publication year 2015
Keyword(s) pupal boidy mass - development time - growth rate - IGE - social interactions - Tribolium castaneum
Abstract Indirect genetic effects (IGEs) are the basis of social interactions among conspecifics, and can affect genetic variation of non-social as well as social traits. We used flour beetles (Tribolium castaneum) of two phenotypically distinguishable populations to estimate genetic (co)variances and the effect of IGEs on three life-history traits: development time (DT), growth rate (GR), and pupal body mass (BM). We found that GR was strongly affected by social environment with IGEs accounting for 18% of the heritable variation. We also discovered a sex-specific social effect: male ratio in a group significantly affected both GR and BM. That is, beetles grew larger and faster in male-biased social environments. Such sex-specific IGEs have not previously been demonstrated in a non-social insect. Our results show that beetles that achieve a higher BM do so via a slower GR in response to social environment. Existing models of evolution in age-structured or stage-structured populations do not account for IGEs of social cohorts. It is likely that such IGEs have played a key role in the evolution of developmental plasticity shown by Tenebrionid larvae in response to density. Our results document an important source of genetic variation for GR, often overlooked in life-history theory.
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