ArticleHeredity2012
Genetic correlations and the evolution of photoperiodic time measurement within a local population of the pitcher-plant mosquito, Wyeomyia smithii.
Article in Heredity, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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10 citing papers in PubMed.
- Clock-talk: have we forgotten about geographic variation?Journal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology · 2024Article
- A region of the sex chromosome associated with population differences in diapause induction contains highly divergent alleles at clock genes.Evolution; international journal of organic evolution · 2021Article
- Rapid reversal of a potentially constraining genetic covariance between leaf and flower traits inEcology and evolution · 2020Article
- Variation in chronotype is associated with migratory timing in a songbird.Biology letters · 2019Article
- Non-Pleiotropic Coupling of Daily and Seasonal Temporal Isolation in the European Corn Borer.Genes · 2018Article
- Keeping time without a spine: what can the insect clock teach us about seasonal adaptation?Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2017Review
- Which host-dependent insects are most prone to coextinction under changed climates?Ecology and evolution · 2014Article
- Evolutionary links between circadian clocks and photoperiodic diapause in insects.Integrative and comparative biology · 2013Review
- Article
- What kind of insights can quantitative genetics provide us about this controversial hypothesis?Heredity · 2012Article
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Abstract
The genetic relationship between the daily circadian clock and the seasonal photoperiodic timer remains a subject of intense controversy. In Wyeomyia smithii, the critical photoperiod (an overt expression of the photoperiodic timer) evolves independently of the rhythmic response to the Nanda-Hamner protocol (an overt expression of the daily circadian clock) over a wide geographical range in North America. Herein, we focus on these two processes within a single local population in which there is a negative genetic correlation between them. We show that antagonistic selection against this genetic correlation rapidly breaks it down and, in fact, reverses its sign, showing that the genetic correlation is due primarily to linkage and not to pleiotropy. This rapid reversal of the genetic correlation within a small, single population means that it is difficult to argue that circadian rhythmicity forms the necessary, causal basis for the adaptive divergence of photoperiodic time measurement within populations or for the evolution of photoperiodic time measurement among populations over a broad geographical gradient of seasonal selection.
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