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Preliminary study of the genetics of resistance in the house mouse

Prescott, C. (1996) Preliminary study of the genetics of resistance in the house mouse. In: Timm, R. M. and Crabb , A. C. (eds.) Proceedings of the Seventeenth Vertebrate Pest Conference. University of California, Davis, USA, pp. 83-87.

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Abstract/Summary

A wild house mouse (Mus domesticus) population originally trapped near Reading, Berkshire, United Kingdom, and maintained as a colony in the laboratory, was subjected to the discriminating feeding period of the warfarin resistance test, as used by Wallace and MacSwiney (1976) and derived from the work of Rowe and Redfern (1964). Eighty percent of this heterogeneous population survived the resistance-test. A similar proportion of the population was found to survive the normally lethal dose of bromadiolone administered by oral gavage. The majority of this population of mice were classified as "warfarin-resistant" and "bromadiolone-resistant." The dose of 10mg.kg-1 of bromadiolone administered by oral gavage appeared to give good discrimination between susceptible and resistant individuals. The results of breeding tests indicate a single dominant gene that confers both "warfarin-resistance" and "bromadiolone-resistance", with complete expression of the resistance genotype in both males and females. Individual mice were classified as to genotype by back-crossing to a homozygous-susceptible strain, and resistance-testing the F1 generation. Separate strains of homozygous-resistant and homozygous-susceptible house mice are now being established.

Item Type:Book or Report Section
Refereed:Yes
Divisions:Faculty of Life Sciences > School of Biological Sciences > Environmental Biology
ID Code:27537
Additional Information:Paper presented at the Seventeenth Vertebrate Pest Conference, University of California, Davis, USA at Rohnert Park, California, USA on March 5-7, 1996
Publisher:University of California

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