Polygenic and major-locus contributions to sexual maturation timing in Atlantic salmon ...

• Main Authors: Debes, Paul Vincent, Piavchenko, Nikolai, Ruokolainen, Annukka, Ovaskainen, Outi, Moustakas-Verho, Jacqueline, Parre, Noora, Aykanat, Tutku, Erkinaro, Jaakko, Primmer, Craig
• Format: Dataset
• Language: English
• Published: Dryad 2019
• Subjects: sexual maturation; large effect locus; genetic correlation; FOS Biological sciences; Life History Evolution; Quantitative genetics; Development and Evolution; Atlantic salmon
• Online Access: https://dx.doi.org/10.5061/dryad.jh9w0vt6k; https://datadryad.org/stash/dataset/doi:10.5061/dryad.jh9w0vt6k

Sexual maturation timing is a life-history trait central to the balance between mortality and reproduction. Maturation may be triggered when an underlying compound trait, called liability, exceeds a threshold. In many different species and especially fishes, this liability is approximated by growth and body condition. However, environmental vs. genetic contributions either directly or via growth and body condition to maturation timing remain unclear. Uncertainty exists also because the maturation process can reverse this causality and itself affect growth and body condition. In addition, disentangling the contributions of polygenic and major loci can be important. In many fishes, males mature before females, enabling the study of associations between male maturation and maturation-unbiased female liability traits. Using 40 Atlantic salmon families, longitudinal common-garden experimentation, and quantitative genetic analyses, we disentangled environmental from polygenic and major locus (vgll3) effects on ... : See manuscript. ...