Natural occurrence of triploidy in a wild brown bullhead

Document Type

Article

Publication Date

1-1-1993

Abstract

We report the rare. natural occurrence of triploidy in a brown bullhead Ameiurus (formerly Ictalurus) nebulosus. This is to our knowledge the first report of naturally occurring triploidy within the family Ictaluridae. The nuclei of blood cells were studied by flow cytomelry, volume measurement, and computer-assisted image analysis. The triploid had a genome size of 3.29 pg DNA/cell compared to 2.23 pg DNA/cell (SD, 0.02 pg) for 28 diploid brown bullheads. Volume measurement and image analysis were able to detect the triploid condition; however, flow cytometry was the most precise technique and had the greatest resolution. © 1993 by the American fisheries society.

Publication Source (Journal or Book title)

Transactions of the American Fisheries Society

First Page

390

Last Page

392

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