Prokhorova E.E., Usmanova R.R., Ataev G.L. 2020. An analysis of morphological and molecular genetic characters for species identification of amber snails Succinea putris (Succineidae) // Invertebrate Zoology. Vol.17. No.1: 1–17 [in English].
Herzen State Pedagogical University of Russia, Moyka River emb., 48, St. Petersburg, 191186 Russia. E-mail: firstname.lastname@example.org
ABSTRACT: We analysed morphological and genotypic diversity of snails Succinea putris (L., 1758) collected in the north-west of Russia and in the Republic of Belarus. No significant morphological differences between snails from different populations were found. The studied snails were identical by the nucleotide sequence of ITS1-5.8S-ITS2 region of rDNA. This means that the secondary structure of the ITS2 transcript of rDNA can be used for species identification of S. putris. Genetic variability based on mitochondrial markers was insignificant. Genetic distances between samples made up 0.002–0.021 for COI gene loci and 0.003–0.01 for CytB gene loci. We found ten haplotypes of the mitochondrial gene CytB and nine haplotypes of the mitochondrial gene COI. Phylogenetic reconstructions based on the obtained nucleotide sequences elucidated interrelationships between geographically distant populations of S. putris and confirmed the taxonomic position of this species. The genetic homogeneity of snails S. putris found in our study probably explains a low variability of morphological characters in this species.
KEY WORDS: molluscs Succinea putris, genotyping, ITS1-5.8S-ITS2, COI, CytB, morphology.