Autosomal and sex-chromosomal polymorphism in a wild population of the Norway rat,Rattus norvegicus |
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| Authors: | R. Diaz de la Guardia J. P. M. Camacho R. G. Ladron de Guevara |
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| Affiliation: | (1) Departamento de Genética, Fac. de Ciencias, Universidad de Granada, Granada, Spain |
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| Abstract: | The karyotypes of 33 specimens of Rattus norvegicus captured in a wild population, were studied by means of conventional Giemsa staining and G- and C-banding methods. A chromosomal polymorphism for the presence or absence of extra segments in autosomes 3 and 12 and the X chromosome was found, beside a polymorphism for centromeric C-bands in pair no. 6.The frequency of different chromosome types found in this population was compared with that found in a wild population in Japan as well as with that found in some inbred strains. |
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