Evolutionary genetics of personality in the Trinidadian guppy I: maternal and additive genetic effects across ontogeny.

ABSTRACT: Among-individual variation in behaviour is a widespread phenomenon, with several frameworks developed to explain its existence. Maternal effects, which can have significant influence over evolutionary processes, are an understudied source of behavioural variation. Maternal effects are not necessarily static, however, since their importance can change over offspring ontogeny, typically declining with age relative to additive genetic effects. Here, using a quantitative genetics approach, we test the prediction that maternal effects will influence age-specific risk-taking behaviour in Trinidadian guppies, Poecilia reticulata. Individuals were subject to a single open-field trial as juveniles and up to four repeat trials as adults, with five traits indicative of risk-taking behaviour measured

SUBMITTER: White SJ 

PROVIDER: S-EPMC6288082 | biostudies-literature | 2019 Jan

REPOSITORIES: biostudies-literature