Cytogenetic Study of Pleuronectes obscurus, Konosirus punctatus and Pseudoblennius percoides

摘要

Our objective was to clarify the cytogenetic characteristics, including karyotypes, cellular DNAcontent, and nuclear size of erythrocytes, of black plaice Pleuronectes obscurus, dotted gizzardshad Konosirus punctatus, and perch sculpin Pseudoblennius percoides, collected from thecoastal areas of Jo Island, Busan, Korea. Karyotypes of P. obscurus and K. punctatus both had adiploid number of 48 and a fundamental number (FN) of 48, with a chromosome formula of 48T.The karyotype of P. percoides had a diploid number of 46 and FN of 56, with a chromosomeformula of 10SM + 36T. No sex-associated heteromorphic pairs were detected for any species.The variation in DNA values (P. obscurus=1.15 pg/nucleus, K. punctatus=1.56 pg/nucleus, P.percoides=. pg/nucleus) was positively related to variation in chromosome FN.