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Russian Journal of Genetics

, Volume 39, Issue 12, pp 1405–1411 | Cite as

The Effect of Substitution of Chromosome 5A with an Extra Chromosome 5B in the Progeny of a Somaclonal Common Wheat Line Monosomic for 5A

  • E. I. Gordeeva
  • E. D. Badaeva
  • E. B. Budashkina
  • N. A. Omel'yanchuk
Article
  • 23 Downloads

Abstract

Cytogenetic analysis was employed in studying the cause of generation of fertile awned forms in the progeny of plants, which were selected from a speltoid somaclonal wheat line monosomic for chromosome 5A (2n = 41 = 20II + I), had speltoid spikes, and were reproduced by self pollination. On cytogenetic and genetic evidence, chromosome 5A was eliminated and the copy number of chromosome 5B increased in the plants examined. The appearance of an extra chromosome 5B is probably caused by nondisjunction of bivalent 5B in the presence of a telocentric originating from the long arm of chromosome 5A. A difference in meiotic segregation was observed for univalent chromosomes 5A and 5B.

Keywords

Common Wheat Cytogenetic Analysis Genetic Evidence Wheat Line Extra Chromosome 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© MAIK “Nauka/Interperiodica” 2003

Authors and Affiliations

  • E. I. Gordeeva
    • 1
  • E. D. Badaeva
    • 2
  • E. B. Budashkina
    • 1
  • N. A. Omel'yanchuk
    • 1
  1. 1.Institute of Cytology and GeneticsRussian Academy of SciencesNovosibirskRussia
  2. 2.Engelhardt Institute of Molecular BiologyRussian Academy of SciencesMoscowRussia

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