초록

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Abstract ▼ AI-Helper

The cytogenetic analysis of river puffer, Takifugu obscurus belongs to Family Tetraodontidae, was performed. The chromosome number of T. obscurus was 44 and the fundamental number was 64. Heteromorphic sex chromosomes were not found. The mean cellular size and nuclear size were $11.01\times7.95...

The cytogenetic analysis of river puffer, Takifugu obscurus belongs to Family Tetraodontidae, was performed. The chromosome number of T. obscurus was 44 and the fundamental number was 64. Heteromorphic sex chromosomes were not found. The mean cellular size and nuclear size were $11.01\times7.95{\mu}m$ and $4.05\times3.15{\mu}m$, respectively. The mean surface area and volume in cell and nucleus were $68.76{\mu}m^2\;and\;366.00{\mu}m^3,\;10.06{\mu}m^2\;and\;21.36{\mu}m^3$, respectively. The number of erythrocyte of both female and male was $12\~13\times10^5/m\ell$. Gill tissues from diploid individuals had cells with one or two nucleoli. These cytogenetic studies should be used for cytotaxonomy and as a valuable estimation of polyploidy to come in T. obscurus.

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