Reviews and Theoretical Articles

Russian Journal of Genetics

, Volume 46, Issue 7, pp 769-785

First online:

Intergenomic chromosome substitutions in wheat interspecific hybrids and their use in the development of a genetic nomenclature of Triticum timopheevii chromosomes

  • E. D. BadaevaAffiliated withEhgelhardt Institute of Molecular Biology, Russian Academy of Sciences Email author 
  • , E. B. BudashkinaAffiliated withInstitute of Cytology and Genetics, Russian Academy of Sciences
  • , E. N. BilinskayaAffiliated withVavilov Institute of General Genetics, Russian Academy of Sciences
  • , V. A. PukhalskiyAffiliated withVavilov Institute of General Genetics, Russian Academy of Sciences

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The results of analysis of the genome formation in interspecific hybrids of Triticum aestivum with T. timopheevii are reviewed. The spectra of substitutions and rearrangements are shown to depend on the genotypes of the parental forms and on the direction of selection. The frequencies of substitutions of individual T. timopheevii chromosomes significantly vary and reflect the level of their divergence relative to the common wheat chromosomes. Some aspects of classification of the At- and G-genome chromosomes are discussed.