Speciation of Eversmann and Mongolian hamsters (Allocricetulus, Cricetinae): Experimental hybridization
- Authors: Gureeva A.V.1, Feoktistova N.Y.1, Matveevsky S.N.2, Kolomiets O.L.2, Surov A.V.1
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Affiliations:
- Severtsov Institute of Ecology and Evolution
- Vavilov Institute of General Genetics
- Issue: Vol 43, No 7 (2016)
- Pages: 736-742
- Section: Article
- URL: https://journals.rcsi.science/1062-3590/article/view/181815
- DOI: https://doi.org/10.1134/S1062359016070074
- ID: 181815
Cite item
Abstract
Contrary to the pre-existing concepts based on morphological and karyological data on the impossibility of hybridization between hamster species of the genus Allocricetulus (A. curtatus and A. eversmanni), F1 hybrids in both combinations, and backcrosses, were obtained for the first time. Some restrictions of hybridization between females of A. eversmanni and males of A. curtatus were detected. Analysis of the synaptonemal complex in the hybrids produced by crossing a female of A. curtatus with a male of A. eversmanni demonstarted that a significant portion of the cells was subject to arrest and selection at the stage of meiosis prophase I. Nevertheless, some spermatocytes still generate viable spermatozoa. Thus, the possibility of hybridization in the laboratory between two Allocricetulus species with different numbers of chromosomes may testify to a relatively low divergence between them.
About the authors
A. V. Gureeva
Severtsov Institute of Ecology and Evolution
Email: Feoktistovanyu@gmail.com
Russian Federation, Moscow, 119071
N. Yu. Feoktistova
Severtsov Institute of Ecology and Evolution
Author for correspondence.
Email: Feoktistovanyu@gmail.com
Russian Federation, Moscow, 119071
S. N. Matveevsky
Vavilov Institute of General Genetics
Email: Feoktistovanyu@gmail.com
Russian Federation, Moscow, 119991
O. L. Kolomiets
Vavilov Institute of General Genetics
Email: Feoktistovanyu@gmail.com
Russian Federation, Moscow, 119991
A. V. Surov
Severtsov Institute of Ecology and Evolution
Email: Feoktistovanyu@gmail.com
Russian Federation, Moscow, 119071