Abstract
Karyotypic analysis on 25 specimens of Uranoscopus scaber from the Gulf of Palermo has revealed the occurrence of an intra-populational mosaicism of Robertsonian type with three distinct diploid numbers: 2n = 30, 2n = 29 and 2n = 28. Intra-individual mosaicism in the chromosome number (2n = 30 and 31 in two specimens and 2n = 28 and 29 in one specimen) is also reported. One large metacentric pair is characterized by secondary constrictions, variable in length in different fish. Polymorphisms of these areas seem to have a genetic, rather than transcriptional, basis.
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Acknowledgements This research was supported by a 60 per cent MPI grant during 1988-1989.
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Vitturi, R., Catalano, E., Lo Conte, M. et al. Intra-populational and intra-individual mosaicisms of Uranoscopus scaber L. (Perciformes, Uranoscopidae). Heredity 67, 325–330 (1991). https://doi.org/10.1038/hdy.1991.96
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DOI: https://doi.org/10.1038/hdy.1991.96