genetic homeostasis


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Ler·ner ho·me·o·sta·sis

(ler'nĕr),
the restorative mechanisms that tend to correct perturbations in the genetic composition of a population.
Synonym(s): genetic homeostasis

genetic homeostasis

the property possessed by a population for resisting sudden change and maintaining a steady genetic composition.

Lerner,

I.M., U.S. population geneticist, 1910-1967.
Lerner homeostasis - the restorative mechanisms that tend to correct perturbations in the genetic composition of a population. Synonym(s): genetic homeostasis
References in periodicals archive ?
For example, overdominance, resulting in a mechanism for genetic homeostasis, may make important contributions to phenotypic variability.
The presence of genetic homeostasis of the form assumed in our model may maintain stable genetic polymorphism.
In the 1950s, there existed only a great body of empirical evidence (such as F2 breakdown in interpopulation crosses, and the behavior of populations after artificial selection is relaxed) for coadaptation and "genetic homeostasis" (Lerner 1954), unaccompanied by any mathematical theory to interpret the observations.
Except for Wright's (1941) paper on chromosomes cited above, theoreticians had not addressed speciation at all before 1966 (Maynard Smith 1966); there existed a great body of evidence on genetic homeostasis and coadaptation for which theoreticians had provided no interpretive guide, but which was conducive to the theory; and no simpler hypothesis seemed, to Mayr, to explain the puzzling observational evidence that peripheral populations often diverge more rapidly and dramatically than widespread populous species (1988, p.