Situation of the increasing pressure of genetic abnormalities in a diploid-polyploid of population spined loaches (Cypriniformes, Cobitidae, Cobitis)

TitleSituation of the increasing pressure of genetic abnormalities in a diploid-polyploid of population spined loaches (Cypriniformes, Cobitidae, Cobitis)
Publication TypeJournal Article
Year of Publication2014
AuthorsMezhzherin, SV, Tsyba, AA, Mezhzherina, DS, Pukhtaevitch, PP
Abbreviated Key TitleDopov. Nac. akad. nauk Ukr.
DOI10.15407/dopovidi2014.06.140
Issue6
SectionBiology
Pagination140-145
Date Published6/2014
LanguageRussian
Abstract

Genetic monitoring of a diploid-polyploid population of spined loach (Cobitis taenia s. lato) in the Irpen river (tributary of the Dnieper) has pointed unusually abrupt changes of its biot C. 2 elongatoides-tanaitica biotype with abnormal allozyme spectrum became to completely dominate. At the same time, individuals of this population also demonstrate a sharp increase in the number of binuclear erythrocytes. All these negative genetic processes occurred against the background of a declining population of the species in this river, which indirectly indicates a slight decrease in the fitness of individuals of this population.

KeywordsCobitidae, Cobitis, Cypriniformes, genetic abnormalities, population spined loaches
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