Title:

Maximatization of the frequency of recombinants in the hybrid zones of Sorex araneus in northern Poland

Creator:

Szałaj, K. A. ; Fedyk, S. ; Banaszek, A. ; Chętnicki, W.

Place of publishing:

Białowieża

Date issued/created:

1995

Description:

Authors studied populations of Sorex araneus Linnaeus, 1758 in the upper Drwęca River valley and in the vicinity of Lake Szeląg Wielki. Authors found that the cline of frequency of metacentric np decays in the Drwęca River valley, which results in a smooth transition between the Stobnica race (karyotype hi, ko, gm, np) and the Laska race (hi, ko, gm). However, on the west shore of Lake Szeląg Wielki the cline of frequency of metacentric gm disappears. Reduction of frequencies of autosome np and gm makes possible broadening of the clines of metacentrics gr and mn, originating from the Łęgucki Młyn race. This results in a reduction of the number of hybrids and maximalization of frequency of recombinants (hi, ko, gr, mn), which reaches the value of 1.0 in the populations located on the west shore of the lake. Authors compared studied populations with those in the Pasłęka River valley, and those between the Pasłęka and Drwęca Rivers valleys. Authors also discussed the maximization of the frequency of recombinants as a mechanism enhancing fertlility of hybrid populations.

Type of object:

Journal/Article

Subject and Keywords:

chromosome races ; clines ; gene flow ; hybrid zones ; Poland ; Sorex araneus ; Ryjówka aksamitna ; Polska

Relation:

Acta Theriologica

Volume:

40

Issue:

3

Start page:

225

End page:

236

Resource type:

Text

Detailed Resource Type:

Article

Format:

application/pdf

Resource Identifier:

10.4098/AT.arch.95-22

Source:

click here to follow the link

Language:

eng ; Sum. eng.

Rights:

Rights Reserved - Free Access

Terms of use:

Copyright-protected material. May be used within the limits of statutory user freedoms

Digitizing institution:

Mammal Research Institute of the Polish Academy of Sciences

Original in:

Library of the Mammal Research Institute Polish Academy of Sciences

Projects co-financed by:

Programme Innovative Economy, 2010-2014, Priority Axis 2. R&D infrastructure ; European Union. European Regional Development Fund

Access:

Open