Intersexual Genetic Correlation for Lifetime Fitness in Collared Flycatchers
Author Information
Author(s): Jon E. Brommer, Mark Kirkpatrick, Anna Qvarnström, Lars Gustafsson
Primary Institution: University of Helsinki
Hypothesis
The intersexual genetic correlation for fitness affects the potential for indirect sexual selection.
Conclusion
The study found that the intersexual genetic correlation for lifetime fitness in collared flycatchers is negative, which limits the potential for indirect sexual selection.
Supporting Evidence
- The intersexual genetic correlation for lifetime fitness was estimated to be negative.
- Simulations showed that the estimate was robust to the effects of extra-pair parentage.
- Low genetic variation for fitness in males further limits genetic benefits in this population.
Takeaway
This study shows that if male and female fitness are not positively linked, choosing a fit mate won't guarantee fit offspring.
Methodology
An animal-model approach was used on data from a pedigreed population of collared flycatchers to estimate the intersexual genetic correlation in Lifetime Reproductive Success.
Potential Biases
Potential bias due to extra-pair paternity affecting pedigree accuracy.
Limitations
The study's estimates of genetic correlation were based on a population with low genetic variation for fitness in males.
Participant Demographics
The study focused on a pedigreed population of collared flycatchers (Ficedula albicollis) in a natural setting.
Statistical Information
P-Value
0.01
Confidence Interval
−0.85±0.6
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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