๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

Autosomal and sex-chromosomal polymorphism in a wild population of the Norway rat, Rattus norvegicus

โœ Scribed by R. Diaz de la Guardia; J. P. M. Camacho; R. G. Ladron de Guevara

Publisher
Springer Netherlands
Year
1981
Tongue
English
Weight
757 KB
Volume
56
Category
Article
ISSN
0016-6707

No coin nor oath required. For personal study only.

โœฆ Synopsis

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.

๐Ÿ“œ SIMILAR VOLUMES

A comparative study of the chromosomes o
A comparative study of the chromosomes of the Norway rat (Rattus norvegicus ERXL.) and the black rat (Rattus rattus L.)
โœ G. Pincus ๐Ÿ“‚ Article ๐Ÿ“… 1927 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 899 KB

## Abstract By the use of a satisfactory technique, excellently preserved spermatogenetic tissue was had both for Rattus rattus and Rattus norvegicus. The careful examination of twelve spermatogonial cells of the former species and of twenty in the latter species shows that R. rattus has forty dipl