10.5061/DRYAD.2FP25
Zajitschek, Felix
Monash University
Zajitschek, Susanne R. K.
Uppsala University
Canton, Cindy
Uppsala University
Georgolopoulos, Grigorios
Uppsala University
Friberg, Urban
Linköping University
Maklakov, Alexei A.
Uppsala University
Data from: Evolution under dietary restriction increases male reproductive
performance without survival cost
Dryad
dataset
2016
Dietary restriction
Male reproductive fitness
2016-01-29T15:39:10Z
2016-01-29T15:39:10Z
en
https://doi.org/10.1098/rspb.2015.2726
124799 bytes
2
CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
Dietary restriction (DR), a reduction in nutrient intake without
malnutrition, is the most reproducible way to extend lifespan in a wide
range of organisms across the tree of life, yet the evolutionary
underpinnings of the DR effect on lifespan are still widely debated. The
leading theory suggests that this effect is adaptive and results from
reallocation of resources from reproduction to somatic maintenance in
order to survive periods of famine in nature. However, such response would
cease to be adaptive when DR is chronic and animals are predicted to
allocate more resources to reproduction. Nevertheless, chronic DR can also
increase the strength of selection resulting in the evolution of more
robust genotypes. We evolved Drosophila melanogaster fruitflies on ‘DR’,
‘standard’ and ‘high’ adult diets in replicate populations with
overlapping generations. After ~25 generations of experimental evolution,
male ‘DR’ flies had higher fitness than males from ‘standard’ and ‘high’
populations. Strikingly, this increase in reproductive success did not
come at a cost to survival. Our results suggest that sustained DR selects
for more robust male genotypes, which are overall better able to convert
resources into energy, which they allocate mostly to reproduction.
Zajitschek et al 2016 Proc B Data Description of the data is provided in
the data file. The updated version corrects an error in the 'Male
survival' tab of the originally uploaded (now deleted) data file
(dryad Zajitschek et al 2016 ProcB Data.xlsx). The original version
contained data of males and of females in the 'Male survival'
tab.