Variation in personality shaped by evolutionary history, genotype, and developmental plasticity in response to feeding modalities in the Arctic charr ...

• Main Authors: Dellinger, Marion, Steele, Sarah, Sprockel, Evert, Philip, Joris, Pálsson, Arnar, Benhaïm, David
• Format: Article in Journal/Newspaper
• Language: unknown
• Published: Zenodo 2023
• Subjects: Personality; plasticity; polymorphism; Arctic charr; development; canalization; Arctic; Salvelinus alpinus
• Online Access: https://dx.doi.org/10.5281/zenodo.10135601; https://zenodo.org/doi/10.5281/zenodo.10135601

Animal personality has been shown to be influenced by both genetic and environmental factors and shaped by natural selection. Currently, little is known about mechanisms influencing the development of personality traits. This study examines the extent to which personality development is genetically influenced and/or environmentally responsive (plastic). We also investigated the role of evolutionary history, assessing whether personality traits could be canalized along a genetic and ecological divergence gradient. We tested the plastic potential of boldness in juveniles of five Icelandic Arctic charr morphs (Salvelinus alpinus), including two pairs of sympatric morphs, displaying various degrees of genetic and ecological divergence from the ancestral anadromous charr, split between treatments mimicking benthic vs. pelagic feeding modalities. We show that differences in mean boldness are mostly affected by genetics. While the benthic treatment led to bolder individuals overall, the environmental effect was ... : Funding provided by: The Icelandic Centre for ResearchCrossref Funder Registry ID: https://ror.org/03srneg48Award Number: 228515-051 Funding provided by: The Icelandic Centre for ResearchCrossref Funder Registry ID: https://ror.org/03srneg48Award Number: 195615-051 Funding provided by: The Icelandic Centre for ResearchCrossref Funder Registry ID: https://ror.org/03srneg48Award Number: 184897-051 Funding provided by: European UnionCrossref Funder Registry ID: https://ror.org/019w4f821Award Number: ...