Dynamics of highly repetitive DNA fraction as indicator of speciation in species of the family Poaceae

Dynamics of highly repetitive DNA fraction as indicator of speciation in species of the family... Dynamics of highly repetitive DNA fraction, that compose up to 99% of large cereal genomes, is a key for understanding mechanisms of speciation on molecular level. Components of this fraction and particulary transposable elements (TEs) wre explored in diploid ancestor of cultivated wheat — the species Sitopsis group (Aegilops, Podceae) by molecular cytogenetics and molecular genetic methods. It was discovered that TE is highly dynamic in time and space and could promote or intensify morphological and karyotypical changes, some of which may be potentially important for the process of microevolution, and allow species with plastic genomes to survive as new forms or even species in times of rapid climatic changes. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Genetics Springer Journals

Dynamics of highly repetitive DNA fraction as indicator of speciation in species of the family Poaceae

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Publisher
SP MAIK Nauka/Interperiodica
Copyright
Copyright © 2010 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/S1022795410090280
Publisher site
See Article on Publisher Site

Abstract

Dynamics of highly repetitive DNA fraction, that compose up to 99% of large cereal genomes, is a key for understanding mechanisms of speciation on molecular level. Components of this fraction and particulary transposable elements (TEs) wre explored in diploid ancestor of cultivated wheat — the species Sitopsis group (Aegilops, Podceae) by molecular cytogenetics and molecular genetic methods. It was discovered that TE is highly dynamic in time and space and could promote or intensify morphological and karyotypical changes, some of which may be potentially important for the process of microevolution, and allow species with plastic genomes to survive as new forms or even species in times of rapid climatic changes.

Journal

Russian Journal of GeneticsSpringer Journals

Published: Sep 30, 2010

References

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