Mageveekäsna Ephydatia fluviatilis populatsiooni geneetiline analüüs
ITS1 region than in ITS2. The middle parts of both regions are of rDNA sequences even within a single cluster can vary in an
most conserved: 90% of sponges studied by Itskovic et al. [19] (16 enormous extent, from one repeat unit up to .140 repeats [26].
accessions of Spongillidae, Echinospongilla brichardi and 2 Lubo- In our study we observed the discrepancy of the results between
mirskiidae, Baikalospongia bacillifera and Lubomirskia baicalensis)) had experiments with one gemmule and/or five gemmules and from
120 nt conserved in the middle part of ITS2 and 145 nt in the those with the young sponges grown from about a thousand
middle part of ITS1. This conservancy may result from the gemmules. It is possible that different sequence variants can
functionality of these regions. The heterogeneities found for E. appear in different relative amounts, and minor variants that could