Molecular variation of the shuttle craft and Lim3 genes, controlling the development of the nervous system, in a natural Drosophila melanogaster population

Molecular variation of the shuttle craft and Lim3 genes, controlling the development of the... Comparative polymorphism of the first exon and first intron of the shuttle craft (stc) and Lim3 genes and their putative regulatory 5′-flanking sequences was analyzed using 20 sequenced natural alleles. A comparison of the stc and Lim3 genes showed that the extent of polymorphism was similar in their introns and corresponded to the variation level characteristic of Drosophila melanogaster, while the putative regulatory region and first intron of the stc gene proved to be more variable than the corresponding regions of the Lim3 gene. Since the genes under study occurred on the same chromosomes isolated from one population and were close together in a region having a high recombination rate, the difference in the extent of polymorphism between the regulatory and coding regions was explained by individual characteristics of each gene. The results made it possible to assume that the extent of polymorphism of the coding gene regions is maintained by balancing selection. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Genetics Springer Journals

Molecular variation of the shuttle craft and Lim3 genes, controlling the development of the nervous system, in a natural Drosophila melanogaster population

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Publisher
Springer Journals
Copyright
Copyright © 2008 by MAIK Nauka
Subject
Biomedicine; Microbial Genetics and Genomics; Animal Genetics and Genomics; Human Genetics
ISSN
1022-7954
eISSN
1608-3369
D.O.I.
10.1134/S1022795408090020
Publisher site
See Article on Publisher Site

Abstract

Comparative polymorphism of the first exon and first intron of the shuttle craft (stc) and Lim3 genes and their putative regulatory 5′-flanking sequences was analyzed using 20 sequenced natural alleles. A comparison of the stc and Lim3 genes showed that the extent of polymorphism was similar in their introns and corresponded to the variation level characteristic of Drosophila melanogaster, while the putative regulatory region and first intron of the stc gene proved to be more variable than the corresponding regions of the Lim3 gene. Since the genes under study occurred on the same chromosomes isolated from one population and were close together in a region having a high recombination rate, the difference in the extent of polymorphism between the regulatory and coding regions was explained by individual characteristics of each gene. The results made it possible to assume that the extent of polymorphism of the coding gene regions is maintained by balancing selection.

Journal

Russian Journal of GeneticsSpringer Journals

Published: Sep 25, 2008

References

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