Coadaptation revisited

Journal Article · Fri Mar 01 00:00:00 EST 1991 · Journal of Heredity; (USA)

OSTI ID:5545276

Wallace, B ^[1]

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1. Virginia Polytechnic Institute and State Univ., Blacksburg (USA)

During the four decades or more since Dobzhansky introduced the term 'coadaptation' to refer to the commonly observed selective superiority of inversion heterozygotes in populations of Drosophila pseudoobscura, the definition of the term has evolved, as have views concerning the rapidity with which coadaptation might occur. Indeed, the paucity of demonstrated instances of linkage disequilibrium in natural populations has led many to dismiss coadaptation as a factor in evolutionary change. The present article reviews the reasons why coadaptation (and the equivalent expression, 'integration of gene pools') was proposed as a phenomenon occurring in local (or experimental) populations, offers supporting data obtained through a reanalysis of data on irradiated populations of D. melanogaster, and concludes that sound evidence supports coadaptation as a factor in the genetic change of populations.65 references.

• OSTI ID: 5545276
• Journal Information: Journal of Heredity; (USA), Vol. 82:2; ISSN 0022-1503
• Country of Publication: United States
• Language: English

Related Subjects

63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
DROSOPHILA
BIOLOGICAL ADAPTATION
GENE MUTATIONS
RADIOINDUCTION
GENETIC RADIATION EFFECTS
REVIEWS
ANIMALS
ARTHROPODS
BIOLOGICAL EFFECTS
BIOLOGICAL RADIATION EFFECTS
DIPTERA
DOCUMENT TYPES
FLIES
FRUIT FLIES
GENETIC EFFECTS
INSECTS
INVERTEBRATES
MUTATIONS
RADIATION EFFECTS
560152* - Radiation Effects on Animals- Animals