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[The karyological features of the genus Planorbarius (Gastropoda, Pulmonata, Bulinidae) of the Ukrainian fauna].

Authors
Type
Published Article
Journal
T︠S︡itologii︠a︡ i genetika
Publication Date
Volume
41
Issue
2
Pages
49–55
Identifiers
PMID: 17494344
Source
Medline

Abstract

The absence of significant distinctions between the species of the genus Planorbarius in the narrow sense (P. corneus, P. banaticus, P. purpura and P. grandis) has been established. All investigated species had identical chromosomal formulas (2n = 30m + 6sm = 36) and fundamental numbers (FN=72). Reliable distinctions between them were not found by total complement length (TCL), relative length of chromosomes (RL) and centromeric indexes. The species selected on the basis of genetic marking differed clearly by centromeric index of chromosome 12 that confirms the allospecies frame of P. corneus s. lato.

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