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- Title
Sociability in Fruit Flies: Genetic Variation, Heritability and Plasticity.
- Authors
Scott, Andrew M.; Dworkin, Ian; Dukas, Reuven
- Abstract
Sociability, defined as individuals’ propensity to participate in non-aggressive activities with conspecifics, is a fundamental feature of behavior in many animals including humans. However, we still have a limited knowledge of the mechanisms and evolutionary biology of sociability. To enhance our understanding, we developed a new protocol to quantify sociability in fruit flies (<italic>Drosophila melanogaster</italic>). In a series of experiments with 59 F1 hybrids derived from inbred lines, we documented, first, significant genetic variation in sociability in both males and females, with broad-sense heritabilities of 0.24 and 0.21 respectively. Second, we observed little genetic correlation in sociability between the sexes. Third, we found genetic variation in social plasticity among the hybrids, with a broad-sense heritability of ~0.24. That is, genotypes differed in the degree of sociability after experiencing the same relevant social experience. Our data pave the way for further research on the mechanisms that underlie sociability as well as its ecological and evolutionary consequences.
- Subjects
DROSOPHILA melanogaster; ANIMAL social behavior; HERITABILITY; PHENOTYPIC plasticity; INSECT evolution; ANIMAL variation; DROSOPHILA melanogaster genetics; BEHAVIOR; INSECTS
- Publication
Behavior Genetics, 2018, Vol 48, Issue 3, p247
- ISSN
0001-8244
- Publication type
Article
- DOI
10.1007/s10519-018-9901-7