10.5061/DRYAD.KB015
Takahashi, Yuma
Chiba University
Tanaka, Ryoya
Tohoku University
Yamamoto, Daisuke
Tohoku University
Suzuki, Noriyuki
Tohoku University
Kawata, Masakado
Tohoku University
Noriyuki, Suzuki
University of California, Berkeley
Data from: Balanced genetic diversity improves population fitness
Dryad
dataset
2017
complementarity
polymorphism
2017-12-19T15:27:01Z
2017-12-19T15:27:01Z
en
https://doi.org/10.1098/rspb.2017.2045
48923 bytes
1
CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
Although genetic diversity within a population is suggested to improve
population-level fitness and productivity, the existence of these effects
is controversial because empirical evidence for an ecological effect of
genetic diversity and the underlying mechanisms is scarce and incomplete.
Here, we show that the natural single-gene behavioural polymorphism (Rover
and sitter) in Drosophila melanogaster has a positive effect on population
fitness. Our simple numerical model predicted that the fitness of a
polymorphic population would be higher than that expected with two
monomorphic populations, but only under balancing selection. Moreover,
this positive diversity effect of genetic polymorphism was attributable to
complementarity effect, rather than to selection effect. Our empirical
tests using the behavioural polymorphism in D. melanogaster clearly
supported the model predictions. These results provide direct evidence for
an ecological effect of genetic diversity on population fitness and its
condition dependence.
DataSurvival rate, biomass and weight.data.txt