INTERPRETING POPULATION DIFFERENTIATION IN TERMS OF DRIFT AND SELECTION

Authors
Citation
Pr. Cabe et Dn. Alstad, INTERPRETING POPULATION DIFFERENTIATION IN TERMS OF DRIFT AND SELECTION, Evolutionary ecology, 8(5), 1994, pp. 489-492
Citations number
9
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Genetics & Heredity",Ecology,Biology
Journal title
ISSN journal
0269-7653
Volume
8
Issue
5
Year of publication
1994
Pages
489 - 492
Database
ISI
SICI code
0269-7653(1994)8:5<489:IPDITO>2.0.ZU;2-F
Abstract
Many empirical studies demonstrate some degree of genetic differentiat ion among populations of the same species. Understanding the relative importance of the processes causing this genetic differentiation has p roven to be a difficult task. In particular, population differentiatio n can be influenced primarily by selection, genetic drift, and migrati on. We review the effect of drift and migration on patterns of genetic variation, with special reference to the conditions necessary for pop ulation differentiation. Conceptually, selection may be implicated in cases of population differentiation if the effect of drift and migrati on can be shown to be insufficient to cause the observed patterns. We examine some of the pitfalls of this approach when used with allozyme data, and revise a previous conclusion concerning the relative importa nce of selection in poulations of scale insects.