Karyotype conservation and difference in DNA amount in anguilloid fishes

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Science  02 Jul 1976:
Vol. 193, Issue 4247, pp. 64-66
DOI: 10.1126/science.935856


The two Pacific anguilloid sishes Anguilla japonica and Astroconger myriaster, belonging to the different families, appear to have identical chromosome numbers (2n = 38) and karyotypes, including one pair of conspicuous heteromorphic chromosomes in females. Cytophotometric measurements, however, indicate a considerable difference in DNA content between the two species.