Abstract
The ploidy between invasive Corbicula lineages can be di-, tri-, and tetraploid. Currently, some invasive populations of this genus remain unaffected by cytogenetic studies. In this study, we determined the chromosome set of invasive C. fluminalis (O. F. Muller, 1774) from Northern European Russia. According to our results, the chromosome set C. fluminalis consists of 54 chromosomes, which can be divided into 18 groups of 3 phenotypically identical chromosomes. Among them we can distinguish 3 metacentric chromosomes, 15 submetacentric chromosomes and 36 subtelo-acrocentric chromosomes.
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