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  • Title: Absence of age-related ploidy changes in a fish with indeterminate growth.
    Author: Fine ML, Foster K, Radtke R.
    Journal: J Gerontol; 1984 Jan; 39(1):18-21. PubMed ID: 6690584.
    Abstract:
    We considered the problem of age-related increase in ploidy of liver cells in the oyster toadfish Opsanus tau using a cytofluorometer. Over 90% of toadfish liver cells are diploid, and the ratio of diploid to tetraploid to octaploid cells remains constant in 3- to 11-year-old fish. The absence of ontogenetic increases in ploidy in toadfish, as opposed to mammals, correlates with fish patterns of indeterminate growth and plasticity.
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