Natural transfer of nuclear genes in hybrid populations of green frogs Rana esculenta L., 1758 complex: space—time analysis of the phenomenon

Natural transfer of nuclear genes in hybrid populations of green frogs Rana esculenta L., 1758... Spatial and temporal analysis of frequency distribution patterns of the Rana esculenta (=lessonae)-specific allele, Ldh-B 71 , in the populations and individuals of R. ridibunda from the Middle Dnieper region was performed. It was established that the allele was accumulated in the populations of Kiev, where on average 15 to 25% of individuals steadily preserved this allele through at least three to four generations. Furthermore, the allele frequency in juveniles and adults was similar. These findings suggest that the frogs carrying foreign genetic material were not eliminated from the populations, and hence, the observed introduction of foreign genes was adaptively neutral. The transfer of the genetic material from one species to another may be considered as a possible mechanism of the formation of an additional source for population genetic variation, which, however, do not seems to be evolutionary progressive. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Genetics Springer Journals

Natural transfer of nuclear genes in hybrid populations of green frogs Rana esculenta L., 1758 complex: space—time analysis of the phenomenon

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Publisher
Nauka/Interperiodica
Copyright
Copyright © 2004 by MAIK “Nauka/Interperiodica”
Subject
Biomedicine; Human Genetics; Microbial Genetics and Genomics; Animal Genetics and Genomics
ISSN
1022-7954
eISSN
1608-3369
D.O.I.
10.1007/s11177-005-0060-6
Publisher site
See Article on Publisher Site

Abstract

Spatial and temporal analysis of frequency distribution patterns of the Rana esculenta (=lessonae)-specific allele, Ldh-B 71 , in the populations and individuals of R. ridibunda from the Middle Dnieper region was performed. It was established that the allele was accumulated in the populations of Kiev, where on average 15 to 25% of individuals steadily preserved this allele through at least three to four generations. Furthermore, the allele frequency in juveniles and adults was similar. These findings suggest that the frogs carrying foreign genetic material were not eliminated from the populations, and hence, the observed introduction of foreign genes was adaptively neutral. The transfer of the genetic material from one species to another may be considered as a possible mechanism of the formation of an additional source for population genetic variation, which, however, do not seems to be evolutionary progressive.

Journal

Russian Journal of GeneticsSpringer Journals

Published: Feb 16, 2005

References

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