Differentiation of chromosome banding sequence pools and genomic dna in Holarctic natural populations of Chironomus entis Shobanov (Diptera, Chironomidae)

Differentiation of chromosome banding sequence pools and genomic dna in Holarctic natural... Polymorphism and differentiation of the chromosome banding sequence pools and genomic DNA were studied in three natural populations of Chironomus entis from Europe and North America. These populations showed a moderate level of chromosomal polymorphism and high RAPD polymorphism of genomic DNA. The Palearctic and Nearctic populations of this species did not differ significantly in the levels of chromosome and genomic DNA polymorphism. Estimation of the cytogenetic (GDcg) and genetic (GDDNA) distances between these C. entis populations showed that their chromosome banding sequence pools and cytogenetic structures are differentiated to a greater extent than genomic DNA. The values of cytogenetic and genetic distances between the Palearctic and Nearctic populations of C. entis are higher than the values of the corresponding distances between the Nearctic populations, but they do not reach the level of divergence between species. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Genetics Springer Journals

Differentiation of chromosome banding sequence pools and genomic dna in Holarctic natural populations of Chironomus entis Shobanov (Diptera, Chironomidae)

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Publisher
SP MAIK Nauka/Interperiodica
Copyright
Copyright © 2009 by Pleiades Publishing, Ltd.
Subject
Biomedicine; Microbial Genetics and Genomics; Animal Genetics and Genomics; Human Genetics
ISSN
1022-7954
eISSN
1608-3369
D.O.I.
10.1134/S1022795409120023
Publisher site
See Article on Publisher Site

Abstract

Polymorphism and differentiation of the chromosome banding sequence pools and genomic DNA were studied in three natural populations of Chironomus entis from Europe and North America. These populations showed a moderate level of chromosomal polymorphism and high RAPD polymorphism of genomic DNA. The Palearctic and Nearctic populations of this species did not differ significantly in the levels of chromosome and genomic DNA polymorphism. Estimation of the cytogenetic (GDcg) and genetic (GDDNA) distances between these C. entis populations showed that their chromosome banding sequence pools and cytogenetic structures are differentiated to a greater extent than genomic DNA. The values of cytogenetic and genetic distances between the Palearctic and Nearctic populations of C. entis are higher than the values of the corresponding distances between the Nearctic populations, but they do not reach the level of divergence between species.

Journal

Russian Journal of GeneticsSpringer Journals

Published: Dec 12, 2009

References

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