Fluctuating Asymmetry and Genetic Variability in a Natural Population of Mus musculus

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Abstract
The relationship between fluctuating asymmetry and genetic variability was examined in a natural population of the house mouse, Mus musculus. Sixty-three presumptive gene loci were examined by starch gel electrophoresis to provide individual heterozygosity values. Estimates of the degree of fluctuating asymmetry were derived from comparisons of right and left kidney weights in both males and females. Additional estimates were obtained, for males, by comparison of testicular lengths and weights. No significant relationship was found between individual heterozygosity and asymmetry. These findings support the poikilotherm-homoiotherm dichotomy noted by Handford (1980).

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