Harney, E, Paterson, S 
ORCID: 0000-0002-1307-2981 and Plaistow, S ORCID: 0000-0002-9003-6271
(2017)
Offspring development and life-history variation in a water flea depends upon clone-specific integration of genetic, non-genetic and environmental cues.
Functional Ecology, 31 (10).
pp. 1996-2007.
Abstract
1. Theory predicts that offspring developmental strategies involve the integration of genetic,non-genetic and env ironmental ‘cues’. But it is unclear how cue integration is achieved duringdevelopment, and whether this pattern is general or genotype specific.2. In order to test this, we manipulated the maternal and offspring environments of threegenetically distinct clones of the water flea Daphnia magna taken from different populations.We then quantified the effect that the genotype, maternal environment and the offspring envi-ronment had on the development and life histories of the three different clones.3. Mothers responded to the same maternal environments in different ways, resulting in clone-specific mate rnal effects on neonate size. Offspring responses to maternal cues varied accordingto the trait in question and were also clone specific. The integration of these maternal effectsduring development was highly context dependent in two clones but more consistent acrossenvironments in the third.4. Genetic, non-genetic and environmental cues contributed to offspring phenotypic variationin all three clones, but there was no general pattern linking traits to specific cues. In fact, twoclones used different combinations of cues at different points in development to achieve similarphenotypic outcomes. Reaction norms for the age and size at which matur ation was initiateddiffered among genotypes, between maternal environments an d across current environments.Developmental transitions such as the decision to mature may thus play an important role indetermining patterns of cue integration.5. Considering multiple traits during development demonstrated that variation in the integra-tion of genetic, non-genetic and environmental cues was an important determ inant of life-his-tory variation among D. magna genotypes. This variation is likely to influence phenotypicevolution.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | cue integration, developmental plasticity, mate rnal effects, non-genetic inheri-tance, probabilistic maturation reaction norm, water flea |
| Depositing User: | Symplectic Admin |
| Date Deposited: | 16 Jun 2017 13:49 |
| Last Modified: | 19 Jan 2023 07:02 |
| DOI: | 10.1111/1365-2435.12887 |
| Open Access URL: | http://onlinelibrary.wiley.com/doi/10.1111/1365-24... |
| Related URLs: | |
| URI: | https://livrepository.liverpool.ac.uk/id/eprint/3008016 |
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