Abstract
NORs were localized by Ag-AS-staining in karyotypes of Rana nigromaculata, R. macrocnemis, R. latastei (2n=26) and R. chensinensis, 2n=24. As in the majority of other Rana species, the NORs are located in the long arms of the 10th (or 11th in R. chensinensis) chromosome pair. The presence of a second secondary constriction in R. latastei, as reported earlier, was not confirmed.
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Birstein, V.J. Localization of NORs in karyotypes of four Rana species. Genetica 64, 149–154 (1984). https://doi.org/10.1007/BF00115338
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DOI: https://doi.org/10.1007/BF00115338