Chromosome substitutions in progeny of hybrids Triticum aestivum x Triticum timopheevii resistant to brown rust and powdery mildew

E. D. Badaeva, N. S. Badaev, T. M. Enno, F. J. Zeller, H. O. Peusha

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

By the C-banding technique, chromosome analysis of introgressive wheat lines derived from the tetraploid species T. timopheevii and T. militinae, with complex immunity to pathogens, was performed. It is shown that all hybrid lines possess genetic material of T. timopheevii and are stable in chromosome number (2n = 6x = 42) and composition. In the lines studied, the number of substitutions per genome varied from one to three; variation in the spectrum of chromosome substitutions was observed. Karyotypes of lines 146-155-T, CMT 30, CMT 34, CMT 37, and CMT 45, resistant to brown rust and powdery mildew, had one common chromosome substitution 6B(6G). It is suggested that the resistance to pathogens of these lines is determined by chromosome 6G of T. timopheevii.

Original languageEnglish
Pages (from-to)89-92
Number of pages4
JournalGenetika
Volume31
Issue number1
StatePublished - 1995
Externally publishedYes

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