Search academic texts

Information × Registration Number 0216U001047, 0111U005070 , R & D reports Title On the basis of interspecific hybridization, inductive rekombinogeneza and gamete selection to develop methodological approaches to create original material for heterosis breeding Solanaceae and Cucurbitaceae (the cucumber) plants. popup.stage_title Head Samovol Alexey Petrovich, Registration Date 15-01-2016 Organization Institute of vegetable and melons Ukrainian Academy of Agrarian Sciences popup.description2 The induction of recombination and genotypic variability in Solanaceae and Cucurbitaceae (cucumber) species. To complete the development of new methods, to identify the level of variability parameters of meiotic recombination in interspecific segregating populations and the rate of reaction of tomato varieties of regional and foreign selection to the action of irradiation on the seeds, and identify their effect of hametophytic selection on cucumber plants qualitative and quantitative traits. Cytological, cytobiophysical, interspecific hybridization, induced mutagenesis and recombination, gametic and zygotic selection, mathematical and statistical. It were developed 4 new methods: 1. The method of prognosis of recombination level and genotypic variability range in segregating heterogeneous populations, which predicts in the meiosis stage of F1 hybrid plants the orientation vector of recombination and genotypic variability in the genetic structure of segregating populations F2 and reduces research by more than 50%; 2. The method of heterosis effect prognosis by early yield of greenhouse tomato F1 hybrid plants because of the direct correlation between hybrid plants productivity in greenhouse and their high competitiveness, which were demonstrated in extreme conditions in the Wagner's containers; 3. The method of time horizontal disruptive selection enhances the level and expands the range of genotypic variability through the expression of genetic mechanisms of transformative and creating meiosis functions; 4. The method of vertical disruptive selection destabilizes the narrow directivity of ontogenesis genetic program, including meiosis, and provides the release of a new range of quantitative and qualitative features variability. Also 12 isolines of tomato (№№ 852, 1233, 1237, 1238, 1239, 1240, 1241, 1242, 1243, 1244, 0000, 0000), 1 isoline of pepper № 1235 and 1 isoline of egg-plant № 0000 which characterize by early maturing, resistance to diseases and abiotic factors, high content of biologically valuable components in fruits were transferred to NCPGRU in 2011 - 2015. Product Description popup.authors Замицька Тетяна Миколаївна Монтвід Павло Юрійович Удовиченко Світлана Миколаївна popup.nrat_date 2020-04-02 Close