Effects of prenatal environment on phenotype are revealed by postnatal challenges : Embryonic hormone exposure, adrenocortical function, and food in seabird chicks
The interaction between prenatal environments and postnatal environments is an important source of phenotypic variability. We examined the ability of prenatal steroid exposure and postnatal energy restriction to explain adrenocortical function and fledging age in captive seabird chicks. We proposed...
Published in: | Physiological and Biochemical Zoology |
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ftunivwagenin:oai:library.wur.nl:wurpubs/588875 2024-02-04T10:05:06+01:00 Effects of prenatal environment on phenotype are revealed by postnatal challenges : Embryonic hormone exposure, adrenocortical function, and food in seabird chicks Benowitz-Fredericks, Z.M. Schultner, J. Kitaysky, A.S. 2015 text/html https://research.wur.nl/en/publications/effects-of-prenatal-environment-on-phenotype-are-revealed-by-post https://doi.org/10.1086/683259 en eng https://edepot.wur.nl/556416 https://research.wur.nl/en/publications/effects-of-prenatal-environment-on-phenotype-are-revealed-by-post doi:10.1086/683259 info:eu-repo/semantics/restrictedAccess Wageningen University & Research Physiological and Biochemical Zoology 88 (2015) 6 ISSN: 1522-2152 Corticosterone Fledging Food restriction Murre Prenatal steroids Stress response Testosterone info:eu-repo/semantics/article Article/Letter to editor info:eu-repo/semantics/publishedVersion 2015 ftunivwagenin https://doi.org/10.1086/683259 2024-01-10T23:18:54Z The interaction between prenatal environments and postnatal environments is an important source of phenotypic variability. We examined the ability of prenatal steroid exposure and postnatal energy restriction to explain adrenocortical function and fledging age in captive seabird chicks. We proposed and tested two hypotheses: (1) the strength of prenatal effects is attenuated by challenging postnatal environments (postnatal override) and (2) the strength of prenatal effects increases with the severity of postnatal challenges (postnatal reveal).We reared commonmurre (Uria aalge) chicks and measured prenatal exposure to corticosterone (CORT) and testosterone (T) from allantoic waste. Adrenocortical function was assessed after 10 d of ad lib. Feeding and then after 5 and 10 d on controlled diets. Postnatal override predicts that prenatal steroids will explain more phenotypic variation before implementation of energy restriction; postnatal reveal predicts that the contribution of prenatal steroids will increase with duration and severity of energy restriction. Energy restriction increased secretion of baseline CORT and the adrenocortical response to the standardized stressor of handling and restraint. The ability of prenatal steroids to explain baseline CORT increased with duration of energy restriction, and for day 20 free baseline CORT, there was a significant interaction between kilojoules per day and prenatal CORT levels; severity of restriction strengthened the relationship between prenatal hormone levels and postnatal hormone levels. Both maximum CORT at day 20 and fledging age were best explained by diet treatment and day 15 or day 20 baseline CORT, respectively. Overall, prenatal CORT increased fledging age and baseline secretion of CORT, while prenatal T decreased them. However, prenatal effects on adrenocortical function were apparent only under the energy restriction conditions. Thus, we found some support for the postnatal reveal hypothesis; our results suggest that some prenatal effects on phenotype may ... Article in Journal/Newspaper Uria aalge uria Wageningen UR (University & Research Centre): Digital Library Physiological and Biochemical Zoology 88 6 607 623 |
institution |
Open Polar |
collection |
Wageningen UR (University & Research Centre): Digital Library |
op_collection_id |
ftunivwagenin |
language |
English |
topic |
Corticosterone Fledging Food restriction Murre Prenatal steroids Stress response Testosterone |
spellingShingle |
Corticosterone Fledging Food restriction Murre Prenatal steroids Stress response Testosterone Benowitz-Fredericks, Z.M. Schultner, J. Kitaysky, A.S. Effects of prenatal environment on phenotype are revealed by postnatal challenges : Embryonic hormone exposure, adrenocortical function, and food in seabird chicks |
topic_facet |
Corticosterone Fledging Food restriction Murre Prenatal steroids Stress response Testosterone |
description |
The interaction between prenatal environments and postnatal environments is an important source of phenotypic variability. We examined the ability of prenatal steroid exposure and postnatal energy restriction to explain adrenocortical function and fledging age in captive seabird chicks. We proposed and tested two hypotheses: (1) the strength of prenatal effects is attenuated by challenging postnatal environments (postnatal override) and (2) the strength of prenatal effects increases with the severity of postnatal challenges (postnatal reveal).We reared commonmurre (Uria aalge) chicks and measured prenatal exposure to corticosterone (CORT) and testosterone (T) from allantoic waste. Adrenocortical function was assessed after 10 d of ad lib. Feeding and then after 5 and 10 d on controlled diets. Postnatal override predicts that prenatal steroids will explain more phenotypic variation before implementation of energy restriction; postnatal reveal predicts that the contribution of prenatal steroids will increase with duration and severity of energy restriction. Energy restriction increased secretion of baseline CORT and the adrenocortical response to the standardized stressor of handling and restraint. The ability of prenatal steroids to explain baseline CORT increased with duration of energy restriction, and for day 20 free baseline CORT, there was a significant interaction between kilojoules per day and prenatal CORT levels; severity of restriction strengthened the relationship between prenatal hormone levels and postnatal hormone levels. Both maximum CORT at day 20 and fledging age were best explained by diet treatment and day 15 or day 20 baseline CORT, respectively. Overall, prenatal CORT increased fledging age and baseline secretion of CORT, while prenatal T decreased them. However, prenatal effects on adrenocortical function were apparent only under the energy restriction conditions. Thus, we found some support for the postnatal reveal hypothesis; our results suggest that some prenatal effects on phenotype may ... |
format |
Article in Journal/Newspaper |
author |
Benowitz-Fredericks, Z.M. Schultner, J. Kitaysky, A.S. |
author_facet |
Benowitz-Fredericks, Z.M. Schultner, J. Kitaysky, A.S. |
author_sort |
Benowitz-Fredericks, Z.M. |
title |
Effects of prenatal environment on phenotype are revealed by postnatal challenges : Embryonic hormone exposure, adrenocortical function, and food in seabird chicks |
title_short |
Effects of prenatal environment on phenotype are revealed by postnatal challenges : Embryonic hormone exposure, adrenocortical function, and food in seabird chicks |
title_full |
Effects of prenatal environment on phenotype are revealed by postnatal challenges : Embryonic hormone exposure, adrenocortical function, and food in seabird chicks |
title_fullStr |
Effects of prenatal environment on phenotype are revealed by postnatal challenges : Embryonic hormone exposure, adrenocortical function, and food in seabird chicks |
title_full_unstemmed |
Effects of prenatal environment on phenotype are revealed by postnatal challenges : Embryonic hormone exposure, adrenocortical function, and food in seabird chicks |
title_sort |
effects of prenatal environment on phenotype are revealed by postnatal challenges : embryonic hormone exposure, adrenocortical function, and food in seabird chicks |
publishDate |
2015 |
url |
https://research.wur.nl/en/publications/effects-of-prenatal-environment-on-phenotype-are-revealed-by-post https://doi.org/10.1086/683259 |
genre |
Uria aalge uria |
genre_facet |
Uria aalge uria |
op_source |
Physiological and Biochemical Zoology 88 (2015) 6 ISSN: 1522-2152 |
op_relation |
https://edepot.wur.nl/556416 https://research.wur.nl/en/publications/effects-of-prenatal-environment-on-phenotype-are-revealed-by-post doi:10.1086/683259 |
op_rights |
info:eu-repo/semantics/restrictedAccess Wageningen University & Research |
op_doi |
https://doi.org/10.1086/683259 |
container_title |
Physiological and Biochemical Zoology |
container_volume |
88 |
container_issue |
6 |
container_start_page |
607 |
op_container_end_page |
623 |
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1789974031760359424 |