The evolution of maladaptation
- 1 June 2000
- journal article
- review article
- Published by Springer Science and Business Media LLC in Heredity
- Vol. 84 (6), 623-629
- https://doi.org/10.1046/j.1365-2540.2000.00746.x
Abstract
This review contains a description of a research program for the study of maladaptation, defined here in terms of deviation from adaptive peaks. Maladaptation has many genetic causes, including mutation, inbreeding, drift, gene flow, heterozygote advantage and pleiotropy. Degrees of maladaptation are determined by genetic architecture and the relationship between the rates of selective, environmental change and the nature and extent of genetic responses to selection. The empirical analysis of maladaptation requires: (1) recognition of putative maladaptation, using methods from phylogenetics, teleonomy, development and genetics, followed by an assessment of the nature and degree of deviation from adaptation, using studies of natural selection and teleonomy; (2) determination of the causes of the deviation, using analyses of genetics, development, or other methods. Conditions for unambiguously identifying maladaptation are considerably more stringent than those for demonstrating adaptation and remarkably few studies have clearly identified and characterised maladaptative traits. A thorough understanding of the nature of phenotypic variation will never be achieved without an analysis of the scope and usual causes of maladaptation.Keywords
This publication has 45 references indexed in Scilit:
- The importance of evolutionary constraints in ecological time scalesEvolutionary Ecology, 1996
- Constraints on Phenotypic EvolutionThe American Naturalist, 1992
- Ontoecogenophyloconstraints? The chaos of constraint terminologyTrends in Ecology & Evolution, 1991
- Adaptation Reviewed: A Phylogenetic Methodology for Studying Character MacroevolutionSystematic Zoology, 1991
- Measuring the Effect of Natural Selection on Phenotypic Interaction SystemsThe American Naturalist, 1990
- Adaptation, compromise, and constraint: the development, morphometrics, and behavioral basis of a fighter-flier polymorphism in male Hoplothrips karnyi (Insecta: Thysanoptera)Behavioral Ecology and Sociobiology, 1988
- Senescence and the Genetic-Correlation Hang-UpThe American Naturalist, 1987
- Developmental Constraints: Why St. Bernards Often Have an Extra Digit and Poodles Never DoThe American Naturalist, 1985
- A DEVELOPMENTAL ANALYSIS OF AN EVOLUTIONARY TREND: DIGITAL REDUCTION IN AMPHIBIANSEvolution, 1985
- Quantitative genetics and developmental constraints on evolution by selectionJournal of Theoretical Biology, 1984