Constitutive Heterochromatin Distribution in the Chromosomes of Pomacentrid Fishes (Perciformes)
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The chromosomal distribution of constitutive heterochromatin bands (C-bands) investigated in three pomacentrid fishes was highly diversified among the species from simple to complex patterns. Especially, it is remarkable that one species showed various sized C-band blocks appearing not only in centrometric regions but also in interstitial and telomeric regions, as such C-band distribution is unusual in fish. These results reveal that the chromosomes of pomacentrids have evolved by not only structural changes but also quantitative and positional changes of constitutive heterochromatin.
CYTOLOGIA 64(1), 87-91, 1999-03
Japan Mendel Society, International Society of Cytology