Abstract
The mitotic chromosomes from cultured cells of Xenopus muelleri were G-banded with trypsin and/or with trypsin/urea. These amphibian chromosomes were not found to be more highly contracted at metaphase than those of mammals or reptiles and trypsin G-banding was more easily induced than in the case of most reptilian chromosomes. The organization of vertebrate chromosomes into distinct early replicating (R-bands) and late replicating (G-bands) replicon clusters may be characteristic of eucaryotes in general.
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Stock, A.D. The occurrence of G-bands in the mitotic chromosomes of the amphibian Xenopus muelleri . Genetica 64, 225–228 (1984). https://doi.org/10.1007/BF00115347
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DOI: https://doi.org/10.1007/BF00115347