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Differential effect...
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Drobniak, Szymon M.Uppsala universitet,Zooekologi,Jagiellonian Univ, Inst Environm Sci, Krakow, Poland; Univ New South Wales, Evolut & Ecol Res Ctr, Sch Biol Environm & Earth Sci, Sydney, NSW, Australia
(författare)
Differential effects of steroid hormones on levels of broad-sense heritability in a wild bird : possible mechanism of environment x genetic variance interaction?
- Artikel/kapitelEngelska2022
Förlag, utgivningsår, omfång ...
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2021-12-17
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Springer Nature,2022
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LIBRIS-ID:oai:DiVA.org:uu-468652
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https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-468652URI
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https://doi.org/10.1038/s41437-021-00490-1DOI
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Språk:engelska
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Sammanfattning på:engelska
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Ämneskategori:ref swepub-contenttype
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Ämneskategori:art swepub-publicationtype
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Genetic variation is one of the key concepts in evolutionary biology and an important prerequisite of evolutionary change. However, we know very little about processes that modulate its levels in wild populations. In particular, we still are to understand why genetic variances often depend on environmental conditions. One of possible environment-sensitive modulators of observed levels of genetic variance are maternal effects. In this study we attempt to experimentally test the hypothesis that maternally transmitted agents (e.g. hormones) may influence the expression of genetic variance in quantitative traits in the offspring. We manipulated the levels of steroid hormones (testosterone and corticosterone) in eggs laid by blue tits in a wild population. Our experimental setup allowed for full crossing of genetic and rearing effects with the experimental manipulation. We observed that birds treated with corticosterone exhibited a significant decrease in broad-sense genetic variance of tarsus length, and an increase in this component in body mass on the 2nd day post-hatching. Our study indicates, that maternally transmitted substances such as hormones may have measurable impact on the levels of genetic variance and hence, on the evolutionary potential of quantitative traits.
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Biuppslag (personer, institutioner, konferenser, titlar ...)
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Sudyka, JoannaJagiellonian Univ, Inst Environm Sci, Krakow, Poland.
(författare)
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Cichon, MariuszJagiellonian Univ, Inst Environm Sci, Krakow, Poland.
(författare)
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Arct, AnetaUppsala universitet,Zooekologi,Jagiellonian Univ, Inst Environm Sci, Krakow, Poland; Polish Acad Sci, Inst Systemat & Evolut Anim, Krakow, Poland(Swepub:uu)anear764
(författare)
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Gustafsson, Lars,Professor,1953-Uppsala universitet,Zooekologi(Swepub:uu)larsgust
(författare)
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Lutyk, DorotaJagiellonian Univ, Inst Environm Sci, Krakow, Poland.
(författare)
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Janas, KatarzynaJagiellonian Univ, Inst Environm Sci, Krakow, Poland.
(författare)
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Uppsala universitetZooekologi
(creator_code:org_t)
Sammanhörande titlar
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Ingår i:Heredity: Springer Nature128:1, s. 63-760018-067X1365-2540
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