The mechanisms of variation of subtelomeric repeats Spelt1 in the progeny of introgressive line Triticum aestivum L. × Aegilops speltoides Tausch.

The mechanisms of variation of subtelomeric repeats Spelt1 in the progeny of introgressive line... Quantitative variation of species-specific subtelomeric repeat Spelt1 was studied in the progeny of an individual plant from the introgressive line Triticum aestivum × Aegilops speltoides. In the progeny, no cases of the Spelt1 increased content were observed. On the contrary, in some cases statistically significant decrease of the repeat copy number was detected. It seems likely that the mechanisms of the Spelt1 elimination involve either the selection at the gamete level versus the increase of the satellite DNA content in the telomeres, or intramolecular (within one chromatid) homologous recombination. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Genetics Springer Journals

The mechanisms of variation of subtelomeric repeats Spelt1 in the progeny of introgressive line Triticum aestivum L. × Aegilops speltoides Tausch.

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Publisher
Nauka/Interperiodica
Copyright
Copyright © 2007 by Pleiades Publishing, Inc.
Subject
Biomedicine; Human Genetics; Animal Genetics and Genomics; Microbial Genetics and Genomics
ISSN
1022-7954
eISSN
1608-3369
D.O.I.
10.1134/S1022795407040163
Publisher site
See Article on Publisher Site

Abstract

Quantitative variation of species-specific subtelomeric repeat Spelt1 was studied in the progeny of an individual plant from the introgressive line Triticum aestivum × Aegilops speltoides. In the progeny, no cases of the Spelt1 increased content were observed. On the contrary, in some cases statistically significant decrease of the repeat copy number was detected. It seems likely that the mechanisms of the Spelt1 elimination involve either the selection at the gamete level versus the increase of the satellite DNA content in the telomeres, or intramolecular (within one chromatid) homologous recombination.

Journal

Russian Journal of GeneticsSpringer Journals

Published: Apr 20, 2007

References

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