<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>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.</p>
</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.

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

Oceanological and Hydrobiological Studies

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Populations of three sympatric species (Daphnia cucullata, Daphnia galeata, and Daphnia hyalina (Daphnia longispina complex)) inhabiting three lakes in...

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

Publié en ligne: 19 avr. 2012

Pages: 1 - 6

DOI: https://doi.org/10.2478/s13545-012-0011-5

Mots clés
Interspecific hybridization, Daphnia, species coexistence, gene flow

© 2012 Faculty of Oceanography and Geography, University of Gdańsk, Poland

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

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

Publié en ligne: 19 avr. 2012

Pages: 1 - 6

DOI: https://doi.org/10.2478/s13545-012-0011-5

Mots clésInterspecific hybridization, Daphnia, species coexistence, gene flow

© 2012 Faculty of Oceanography and Geography, University of Gdańsk, Poland

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Mots clés
Interspecific hybridization, Daphnia, species coexistence, gene flow