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Interspecific hybridization in sympatric species of Daphnia inhabiting lakes in northeastern Poland Cover

Interspecific hybridization in sympatric species of Daphnia inhabiting lakes in northeastern Poland

Open Access
|Apr 2012

Abstract

Populations of three sympatric species (Daphnia cucullata, Daphnia galeata, and Daphnia hyalina (Daphnia longispina complex)) inhabiting three lakes in northeastern Poland (Roś, Mikołajskie, Wigry) were checked for interspecific hybrids. Hybrid Daphnia coexisting with parental individuals were detected in each of the investigated lakes. Several classes of hybrids (F1, F2, backcrosses), including D. cucullata×galeata×hyalina individuals, have been detected. Hybrids constituted a substantial (13%–38%) part of the total abundance of individuals of the D. longispina complex. Deficiency of heterozygotes (hybrids) detected may indicate the existence of barriers for gene flow between the sympatric Daphnia taxa.

DOI: https://doi.org/10.2478/s13545-012-0011-5 | Journal eISSN: 1897-3191 | Journal ISSN: 1730-413X
Language: English
Page range: 1 - 6
Published on: Apr 19, 2012
Published by: University of Gdańsk
In partnership with: Paradigm Publishing Services
Publication frequency: 4 issues per year

© 2012 Tomasz Brzeziński, Jan Fronk, Joanna Trzcińska-Danielewicz, Piotr Dawidowicz, published by University of Gdańsk
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.