[The effect of the genome of the variety on the adaptive characteristics of alloplasmic strains of winter wheat]. / Vliianie genoma sorta na adaptivnye osobennosti alloplazmaticheskikh linii ozimoi pshenitsy.

The analysis of adaptability and genetical distances between 12 cytoplasms of Aegilops, Triticum and Haynaldia villosa for three winter wheat genomes showed an existence of genome-plasmon interactions. The plasmons of Ae. variabilis, Ae. cylindrica, Ae. squarrosa var. strangulata, T. dicoccoides appeared to be perspective in practical breeding for adaptability. Interactions are revealed as alteration of productivity and adaptability, and as genetic divergence.

[The hybridization of tetraploid wheat with the octoploid wheat-wild rye amphiploid Elytricum fertile and the chromosome behavior in meiotic MI]. / Gibridizatsiia tetraploidnoi pshenitsy s oktoploidnym pshenichno-élimusnym amfiploidom Elytricum fertile i povedenie khromosom v MI meioza.

The hybridization and chromosome behaviour regularities at meiotic MI of reciprocal F1 hybrids of tetraploid wheats T. durum and T. turgidum with 56-chromosome incomplete wheat-Elymus amphiploid (IWEA) Elytricum fertile, were investigated. Variation of main indices of the hybridization has been revealed to be determined by variance of such factors as cross direction, genotype peculiarities of wheat strains and their interaction. Elymus sibiricus genome, contained in IWEA karyotype, carries several genes, that can suppress wheat diploidization system. Reduction of homologous chromosome synapsis is not determined by these genes, but is connected with influence of other Elymus sibiricus chromosome factors.