Molecular Analysis of Two Endemic Squalius Species: Evidence for Intergeneric Introgression among Cyprinids and Conservation Issues

Valić, Damir; Mirković, Matej Kristan; Besendorfer, Višnja; Teskeredžić, Emin (2023) Molecular Analysis of Two Endemic Squalius Species: Evidence for Intergeneric Introgression among Cyprinids and Conservation Issues. Fishes, 9 (1). ISSN 2410-3888

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Official URL: https://www.mdpi.com/2410-3888/9/1/4

Abstract

Conservation of indigenous species, especially endemic ones, is of the utmost importance. Morphological determination of species is usually not sufficient; therefore, molecular phylogenetic analyses of the Illyrian chub, Squalius illyricus, and the Zrmanja chub, Squalius zrmanjae, from the Krka River were performed. For the genetic characterization of the mitochondrial gene cytochrome b and the non-coding nuclear region Cyfun P, 15 specimens from each species were subjected to analysis. The obtained sequences were aligned with similar ones from GenBank to determine the taxonomic and phylogenetic position of these species. The obtained molecular results imply that S. zrmanjae from the Krka River has a nuclear region that resembles Dalmatian rudd, Scardinius dergle. This result implies an introgression event and the transfer of genetic information between the two genera. The investigated species are on the IUCN Red List of Threatened Species, their biological data are scarce, and further investigation and protection are needed.

Item Type:

Article

Uncontrolled Keywords:

Leuciscidae; cyt b; endemic species; Squalius

Subjects:

NATURAL SCIENCES > Biology
NATURAL SCIENCES > Biology > Biochemistry and Molecular Biology
NATURAL SCIENCES > Biology > Zoology

Divisions:

Division for Marine and Enviromental Research
Division of Molecular Biology

Projects: