February 11, 1972Science203 citations

Tetraploid Origin of the Karyotype of Catostomid Fishes

TUTeruya UyenoNational Museum of Nature and Science GSGerald R. SmithTexas A&M University System

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Abstract

Catostomid fishes appear to have 2n(-->4n?) approximately 100 chromosomes. The Cyprinidae, from which catostomids probably diverged before the Eocene, usually have 2n = 48 or 50 chromosomes. Preliminary cytophotometric measurements indicate an approximate doubling of DNA content of cells among catostomids.

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Uyeno et al. (Fri,) studied this question.

synapsesocial.com/papers/6a69f31457d7d08ca7e856b3 https://doi.org/https://doi.org/10.1126/science.175.4022.644

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4A Simple Technique for Obtaining Chromosomes from Teleost Fishes1966 · 73 citations
5Absorption microphotometry of irregular-shaped objects1953 · 475 citations

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