Data from: Evidence for sex-specific selection in brain: a case study of the nine-spined stickleback
Theory predicts that the sex making greater investments into reproductive behaviours demands higher cognitive ability, and as a consequence, larger brains or brain parts. Further, the resulting sexual dimorphism can differ between populations adapted to different environments, or among individuals d...
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ftdryad:oai:v1.datadryad.org:10255/dryad.63261 2023-05-15T16:12:07+02:00 Data from: Evidence for sex-specific selection in brain: a case study of the nine-spined stickleback Herczeg, Gabor Välimäki, Kaisa Gonda, Abigél Merilä, Juha Fennoscandia Holocene 2014-04-23T19:10:53Z http://hdl.handle.net/10255/dryad.63261 https://doi.org/10.5061/dryad.27vh0 unknown doi:10.5061/dryad.27vh0/1 doi:10.1111/jeb.12409 PMID:24898271 doi:10.5061/dryad.27vh0 Herczeg G, Välimäki K, Gonda A, Merilä J (2014) Evidence for sex-specific selection in brain: a case study of the nine-spined stickleback. Journal of Evolutionary Biology 27(8): 1604-1612. http://hdl.handle.net/10255/dryad.63261 Brain Adaptation Phenotypic plasticity Fish Sexual dimorphism Article 2014 ftdryad https://doi.org/10.5061/dryad.27vh0 https://doi.org/10.5061/dryad.27vh0/1 https://doi.org/10.1111/jeb.12409 2020-01-01T15:08:01Z Theory predicts that the sex making greater investments into reproductive behaviours demands higher cognitive ability, and as a consequence, larger brains or brain parts. Further, the resulting sexual dimorphism can differ between populations adapted to different environments, or among individuals developing under different environmental conditions. In the nine-spine stickleback (Pungitius pungitius), males perform nest building, courtship, territory defence and parental care, whereas females perform mate choice and produce eggs. Also, predation-adapted marine and competition-adapted pond populations have diverged in a series of ecologically relevant traits, including the level of phenotypic plasticity. Here, we studied sexual dimorphism in brain size and architecture in nine-spined stickleback from marine and pond populations reared in a factorial experiment with predation and food treatments in a common garden experiment. Males had relatively larger brains, larger telencephala, cerebella and hypothalami (6–16% divergence) than females, irrespective of habitat. Females tended to have larger bulbi olfactorii than males (13%) in the high food treatment, whereas no such difference was found in the low food treatment. The strong sexual dimorphism in brain architecture implies that the different reproductive allocation strategies (behaviour vs. egg production) select for different investments into the costly brains between males and females. The lack of habitat dependence in brain sexual dimorphism suggests that the sex-specific selection forces on brains differ only negligibly between habitats. Although significance of the observed sex-specific brain plasticity in the size of bulbus olfactorius remains unclear, it demonstrates the potential for sex-specific neural plasticity. Article in Journal/Newspaper Fennoscandia Dryad Digital Repository (Duke University) |
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Dryad Digital Repository (Duke University) |
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Brain Adaptation Phenotypic plasticity Fish Sexual dimorphism |
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Brain Adaptation Phenotypic plasticity Fish Sexual dimorphism Herczeg, Gabor Välimäki, Kaisa Gonda, Abigél Merilä, Juha Data from: Evidence for sex-specific selection in brain: a case study of the nine-spined stickleback |
topic_facet |
Brain Adaptation Phenotypic plasticity Fish Sexual dimorphism |
description |
Theory predicts that the sex making greater investments into reproductive behaviours demands higher cognitive ability, and as a consequence, larger brains or brain parts. Further, the resulting sexual dimorphism can differ between populations adapted to different environments, or among individuals developing under different environmental conditions. In the nine-spine stickleback (Pungitius pungitius), males perform nest building, courtship, territory defence and parental care, whereas females perform mate choice and produce eggs. Also, predation-adapted marine and competition-adapted pond populations have diverged in a series of ecologically relevant traits, including the level of phenotypic plasticity. Here, we studied sexual dimorphism in brain size and architecture in nine-spined stickleback from marine and pond populations reared in a factorial experiment with predation and food treatments in a common garden experiment. Males had relatively larger brains, larger telencephala, cerebella and hypothalami (6–16% divergence) than females, irrespective of habitat. Females tended to have larger bulbi olfactorii than males (13%) in the high food treatment, whereas no such difference was found in the low food treatment. The strong sexual dimorphism in brain architecture implies that the different reproductive allocation strategies (behaviour vs. egg production) select for different investments into the costly brains between males and females. The lack of habitat dependence in brain sexual dimorphism suggests that the sex-specific selection forces on brains differ only negligibly between habitats. Although significance of the observed sex-specific brain plasticity in the size of bulbus olfactorius remains unclear, it demonstrates the potential for sex-specific neural plasticity. |
format |
Article in Journal/Newspaper |
author |
Herczeg, Gabor Välimäki, Kaisa Gonda, Abigél Merilä, Juha |
author_facet |
Herczeg, Gabor Välimäki, Kaisa Gonda, Abigél Merilä, Juha |
author_sort |
Herczeg, Gabor |
title |
Data from: Evidence for sex-specific selection in brain: a case study of the nine-spined stickleback |
title_short |
Data from: Evidence for sex-specific selection in brain: a case study of the nine-spined stickleback |
title_full |
Data from: Evidence for sex-specific selection in brain: a case study of the nine-spined stickleback |
title_fullStr |
Data from: Evidence for sex-specific selection in brain: a case study of the nine-spined stickleback |
title_full_unstemmed |
Data from: Evidence for sex-specific selection in brain: a case study of the nine-spined stickleback |
title_sort |
data from: evidence for sex-specific selection in brain: a case study of the nine-spined stickleback |
publishDate |
2014 |
url |
http://hdl.handle.net/10255/dryad.63261 https://doi.org/10.5061/dryad.27vh0 |
op_coverage |
Fennoscandia Holocene |
genre |
Fennoscandia |
genre_facet |
Fennoscandia |
op_relation |
doi:10.5061/dryad.27vh0/1 doi:10.1111/jeb.12409 PMID:24898271 doi:10.5061/dryad.27vh0 Herczeg G, Välimäki K, Gonda A, Merilä J (2014) Evidence for sex-specific selection in brain: a case study of the nine-spined stickleback. Journal of Evolutionary Biology 27(8): 1604-1612. http://hdl.handle.net/10255/dryad.63261 |
op_doi |
https://doi.org/10.5061/dryad.27vh0 https://doi.org/10.5061/dryad.27vh0/1 https://doi.org/10.1111/jeb.12409 |
_version_ |
1765997351195901952 |