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Cited by 582

The DOI matches its Crossref record; 2 of the 2 references it cites were found in a registry or an index.

GENETIC COVARIANCE OF FITNESS CORRELATES: WHAT GENETIC CORRELATIONS ARE MADE OF AND WHY IT MATTERS

Open access
Houle, David·1991·Evolution
DOI 10.1111/j.1558-5646.1991.tb04334.x
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Abstract

The genetic variance-covariance matrix, G, is determined in part by functional architecture, the pathways by which variation in genotype influences phenotype. I develop a simple architectural model for G for two traits under directional selection constrained by their dependence on a common limiting resource. I assume that genetic variance is maintained by mutation-selection balance. The relative numbers of loci that play a role in acquiring versus allocating a limiting resource play a crucial role in determining genetic covariance. If many loci are involved in acquiring a resource, genetic covariance may be either negative or positive at equilibrium, depending on the fitness function and the input of mutational variance. The form of G does not necessarily reveal the constraint on resource acquisition inherent in the system, and therefore studies estimating G do not test for the existence of life-history tradeoffs. Characters may evolve in patterns that are unpredictable from G. Experiments are suggested that would indicate if this model could explain observations of positive genetic covariance.

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Metadata

Authors
Houle, D.
Venue
Evolution
Publisher
Oxford University Press (OUP)
Published
1991-05
Volume
45
Issue
3
Pages
630-648
ISSN
  • 0014-3820 (ISSN-L)
  • 1558-5646
DOI
10.1111/j.1558-5646.1991.tb04334.x
OpenAlex
W2025693284
Cited by
582
References
2
FWCI
31.94
Type
journal article
Language
en
Open access
bronze

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