Genetics of Mouse Behavior: Interactions with Laboratory Environment

Author:

Crabbe John C.1,Wahlsten Douglas2,Dudek Bruce C.3

Affiliation:

1. Portland Alcohol Research Center, Department of Veterans Affairs Medical Center and Department of Behavioral Neuroscience, Oregon Health Sciences University, Portland, OR 97201, USA.

2. Department of Psychology, University of Alberta, Edmonton, Alberta, Canada T6G 2E9.

3. Department of Psychology, State University of New York at Albany, Albany, NY 12222, USA.

Abstract

Strains of mice that show characteristic patterns of behavior are critical for research in neurobehavioral genetics. Possible confounding influences of the laboratory environment were studied in several inbred strains and one null mutant by simultaneous testing in three laboratories on a battery of six behaviors. Apparatus, test protocols, and many environmental variables were rigorously equated. Strains differed markedly in all behaviors, and despite standardization, there were systematic differences in behavior across labs. For some tests, the magnitude of genetic differences depended upon the specific testing lab. Thus, experiments characterizing mutants may yield results that are idiosyncratic to a particular laboratory.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

Reference24 articles.

1. Strain-Dependent Epithelial Defects in Mice Lacking the EGF Receptor

2. Gerlai R., Trends Neurosci. 19, 177 (1996);

3. Nguyen M., et al., Nature 390, 78 (1997).

4. It has been known for some time that comparisons of multiple genotypes on learning-related tests do not always yield consistent results across laboratories [D. Wahlsten in Psychopharmacology of Aversively Motivated Behavior H. Anisman and G. Bignami Eds. (Plenum New York 1978) pp. 63–118]. For another example the Crabbe laboratory has reported that C57BL/6 mice show a small enhancement of locomotor activity after low doses of ethanol while the Dudek laboratory finds no such stimulant response [

5. Crabbe J. C., et al., J. Comp. Physiol. Psychol. 96, 440 (1982);

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