Laboratory Animals > Volume 25, Number 4 > Pp. 303-307

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Mandible shape analysis in Y-congenic strains of mice

R. Moutier and M. Earlier

Laboratoire Génétique, Neurogénétique et Comportement, URA 1294-CNRS, UFR Biomédicale,45 rue des Saints Péres, 75270 Paris Cedex 06, France; Laboratoire Génétique, Neurogénétique et Comportement, URA 1294-CNRS, UFR Biomédicale,45 rue des Saints Péres, 75270 Paris Cedex 06, France

In order to test for the presence of genes influencing morphology on the Y-chromosome of mice, a canonical discriminant analysis of variation in mandible shape was conducted in 4 inbred strains of mice and 4 Y-chromosome congenic partners. Genetic background-dependent differences were observed, as well as a small sex variation in some strains, but it was impossible to detect any difference related to the between-strain exchange of the Y-chromosome.

Key Words: MANDIBLE SHAPE • Y-CONGENIC STRAINS • MICE

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