Abstract
The diploid chromosome number of Gymnothorax unicolor (Delaroche, 1809) is 2n=42, the karyotype comprising six pairs of meta-submetacentric and fifteen pairs of acrocentric chromosomes. C-positive chromatin is present in the centromeres of all chromosomes as well as in the paracentromeric regions of some chromosomes. A nucleolar organizer region was identified on the long arm of chromosome 9, near the centromere. This region is also positive to C-banding.
Cytotaxonomical relationships are evidenced between the described karyotype and that of the related species Muraena helena.
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Deiana, A.M., Salvadori, S. & Cau, A. The characterization of somatic chromosomes of Gymnothorax unicolor (Delaroche, 1809) by C-banding and NOR staining (Osteichthyes, Anguilliformes). Genetica 81, 17–20 (1990). https://doi.org/10.1007/BF00055232
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DOI: https://doi.org/10.1007/BF00055232