Biochemical genetic typing and cytometry showed that polyploid females account for 87% of the spined loachCobitis taeniapopulation from the middle Dnieper basin. The polyploidy series included triploids, tetraploids, and, possibly, a few pentaploids. A characteristic feature of the genetic structure of polyploids was that their genetic variation was due to the clonal variation in the haploid portion of the genome originating from Cobitis sp. and to polymorphism of the diploid portion originating fromC. taenia. The results are discussed with regard to comparative evolution of alloploid complexes in fish and terrestrial vertebrates.
Russian Journal of Genetics – Springer Journals
Published: Oct 13, 2004
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