-The lines Triticum aestivum/Aegifops sharonensis were explored in regard to the presence of introgressions in the line genomes, their amount and belonging to definite homoeologic group. The results of studying of chromosome associations in M1 of PMC in the hybrids between the lines with each other and with recurrent common wheat genotype Avrora were compared with the data of the line assessmentfor the chromosomal biochemical and morphological markers. 26 lines were distinguished, between six groups with specific genome rearrangement regard to recurrent genotype.
Triticum miguschovae, a genome addition synthetic, was used as a source for transfer of leaf rust (Puccinia recondita tritici) resistance to common wheat. This synthetic, developed from two wild species Triticum militinae and Aegilops squarrosa, proves a valuable donor of the genes for leaf rust resistance. Leaf rust resistance was transferred from T. miguschovae by both dominant and recessive genes. Stable lines phenotypically similar to their recurrent parents Kavkaz and Bezostaya 1 but differing from them in a high level of leaf rust resistance were obtained. The genes for resistance in 3 selected lines differed from each other and from the known effective genes Lr9, Lr19, and Lr24. The resistance of one of them (line 1229) is controlled by two complementary interacting genes located on chromosomes 7B and 1D was revealed by monosomic analysis.
-The hybridoiogical analysis was provided on several durum wheat genotypes with utilizing three F 2 populations developed from the crossing between parental forms that differed in the invariable malt-zone triplet on elecirophoretic spectrum of α -amylase. Three components of this zone are controlled by three genes with an independent way of inheritance: one of them is located on the 6B or 5B chromosome, and two genes are located on the chromosomes of A subgenome.
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