Egg size and offspring phenotype data at early life stages in seven Arctic charr morphs
Maternal effects have the potential to alter early developmental processes of offspring and contribute to adaptive diversification. Egg size is a major contributor to offspring phenotype, which can influence developmental trajectories and potential resource use. However, to what extent intraspecific...
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ftzenodo:oai:zenodo.org:7195743 2023-06-06T11:48:50+02:00 Egg size and offspring phenotype data at early life stages in seven Arctic charr morphs Beck, Samantha V. Räsänen, Katja Kristjánsson, Bjarni K. Skúlason, Skúli Jónsson, Zophonías O. Tsinganis, Markos Leblanc, Camille A. 2022-10-13 https://zenodo.org/record/7195743 https://doi.org/10.5061/dryad.jh9w0vtfg unknown https://github.com/SamVBeck/egg_size_Icelandic_Arctic_charr https://zenodo.org/communities/dryad https://zenodo.org/record/7195743 https://doi.org/10.5061/dryad.jh9w0vtfg oai:zenodo.org:7195743 info:eu-repo/semantics/openAccess https://creativecommons.org/publicdomain/zero/1.0/legalcode developmental plasticity diversification egg size freshwater maternal effects resource polymorphism Salvelinus alpinus info:eu-repo/semantics/other dataset 2022 ftzenodo https://doi.org/10.5061/dryad.jh9w0vtfg 2023-04-13T20:54:01Z Maternal effects have the potential to alter early developmental processes of offspring and contribute to adaptive diversification. Egg size is a major contributor to offspring phenotype, which can influence developmental trajectories and potential resource use. However, to what extent intraspecific variation in egg size facilitates evolution of resource polymorphism is poorly understood. We studied multiple resource morphs of Icelandic Arctic charr, ranging from an anadromous morph – with a phenotype similar to the proposed ancestral phenotype – to sympatric morphs that vary in their degree of phenotypic divergence from the ancestral anadromous morph. We characterised variation in egg size and tested whether egg size influenced offspring phenotype at early-life stages (i.e. timing of- and size at- hatching and first feeding [FF]). We predicted that egg size would differ among morphs and be less variable as morphs diverge away from the ancestral anadromous phenotype. We also predicted that egg size would correlate with offspring size and developmental timing. We found morphs had different egg size, developmental timing and size at hatching and FF. Egg size increased as phenotypic proximity to the ancestral anadromous phenotype decreased, with larger eggs generally giving rise to larger offspring, especially at FF, but egg size had no effect on developmental rate. The interaction between egg size and the environment may have a profound impact on offspring fitness, where the resulting differences in early-life history traits may act to initiate and/or maintain resource morphs diversification. All data were analysed using R. The scripts of which can be accessed at https://github.com/SamVBeck/egg_size_Icelandic_Arctic_charr. Funding provided by: Icelandic Centre for ResearchCrossref Funder Registry ID: http://dx.doi.org/10.13039/501100001840Award Number: 141360Funding provided by: Icelandic Centre for ResearchCrossref Funder Registry ID: http://dx.doi.org/10.13039/501100001840Award Number: 173814-051 Female size ... Dataset Arctic charr Arctic Salvelinus alpinus Zenodo Arctic |
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Open Polar |
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Zenodo |
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ftzenodo |
language |
unknown |
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developmental plasticity diversification egg size freshwater maternal effects resource polymorphism Salvelinus alpinus |
spellingShingle |
developmental plasticity diversification egg size freshwater maternal effects resource polymorphism Salvelinus alpinus Beck, Samantha V. Räsänen, Katja Kristjánsson, Bjarni K. Skúlason, Skúli Jónsson, Zophonías O. Tsinganis, Markos Leblanc, Camille A. Egg size and offspring phenotype data at early life stages in seven Arctic charr morphs |
topic_facet |
developmental plasticity diversification egg size freshwater maternal effects resource polymorphism Salvelinus alpinus |
description |
Maternal effects have the potential to alter early developmental processes of offspring and contribute to adaptive diversification. Egg size is a major contributor to offspring phenotype, which can influence developmental trajectories and potential resource use. However, to what extent intraspecific variation in egg size facilitates evolution of resource polymorphism is poorly understood. We studied multiple resource morphs of Icelandic Arctic charr, ranging from an anadromous morph – with a phenotype similar to the proposed ancestral phenotype – to sympatric morphs that vary in their degree of phenotypic divergence from the ancestral anadromous morph. We characterised variation in egg size and tested whether egg size influenced offspring phenotype at early-life stages (i.e. timing of- and size at- hatching and first feeding [FF]). We predicted that egg size would differ among morphs and be less variable as morphs diverge away from the ancestral anadromous phenotype. We also predicted that egg size would correlate with offspring size and developmental timing. We found morphs had different egg size, developmental timing and size at hatching and FF. Egg size increased as phenotypic proximity to the ancestral anadromous phenotype decreased, with larger eggs generally giving rise to larger offspring, especially at FF, but egg size had no effect on developmental rate. The interaction between egg size and the environment may have a profound impact on offspring fitness, where the resulting differences in early-life history traits may act to initiate and/or maintain resource morphs diversification. All data were analysed using R. The scripts of which can be accessed at https://github.com/SamVBeck/egg_size_Icelandic_Arctic_charr. Funding provided by: Icelandic Centre for ResearchCrossref Funder Registry ID: http://dx.doi.org/10.13039/501100001840Award Number: 141360Funding provided by: Icelandic Centre for ResearchCrossref Funder Registry ID: http://dx.doi.org/10.13039/501100001840Award Number: 173814-051 Female size ... |
format |
Dataset |
author |
Beck, Samantha V. Räsänen, Katja Kristjánsson, Bjarni K. Skúlason, Skúli Jónsson, Zophonías O. Tsinganis, Markos Leblanc, Camille A. |
author_facet |
Beck, Samantha V. Räsänen, Katja Kristjánsson, Bjarni K. Skúlason, Skúli Jónsson, Zophonías O. Tsinganis, Markos Leblanc, Camille A. |
author_sort |
Beck, Samantha V. |
title |
Egg size and offspring phenotype data at early life stages in seven Arctic charr morphs |
title_short |
Egg size and offspring phenotype data at early life stages in seven Arctic charr morphs |
title_full |
Egg size and offspring phenotype data at early life stages in seven Arctic charr morphs |
title_fullStr |
Egg size and offspring phenotype data at early life stages in seven Arctic charr morphs |
title_full_unstemmed |
Egg size and offspring phenotype data at early life stages in seven Arctic charr morphs |
title_sort |
egg size and offspring phenotype data at early life stages in seven arctic charr morphs |
publishDate |
2022 |
url |
https://zenodo.org/record/7195743 https://doi.org/10.5061/dryad.jh9w0vtfg |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic charr Arctic Salvelinus alpinus |
genre_facet |
Arctic charr Arctic Salvelinus alpinus |
op_relation |
https://github.com/SamVBeck/egg_size_Icelandic_Arctic_charr https://zenodo.org/communities/dryad https://zenodo.org/record/7195743 https://doi.org/10.5061/dryad.jh9w0vtfg oai:zenodo.org:7195743 |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/publicdomain/zero/1.0/legalcode |
op_doi |
https://doi.org/10.5061/dryad.jh9w0vtfg |
_version_ |
1767954442482614272 |