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National Repository of Grey Literature 1 records found  Search took 0.00 seconds. 
Optimization and application of in vitro techniques in selected members of the family Brassicaceae
 Hilgert-Delgado, Alois Antonín ; Fernández Cusimamani, Eloy (advisor) ; Jana, Jana (referee)
This thesis is focused on the application and optimization of biotechnological methods within the family Brassicaceae. Most of this thesis is focused specifically the genus Brassica. The main objective of this dissertation thesis was to optimize and apply selected biotechnological methods in the resynthesis of oilseed rape (B. napus) from its baseline species (B. oleracea, CC and B. rapa, AA) and subsequently create valuable genetic plant materials. The optimized procedure implemented in my work have exhibited better results of hybrid production (resynthesis) than in similar published experiments and provides a simplified and less laborious method via simple ovule culture and early hybrid verification. The next accomplished step was to work with a wider range of materials using a broader source of different and contrasting genotypes from Brassica rapa (spring and winter oilseed and vegetable turnips) and B. oleracea (green and purple curly kales and cabbages) for new combinations and wider genetic diversity. It was concluded that the optimized ovule culture protocol with early verification, developed in the framework of this thesis, is satisfactorily sufficient enough to be applicable in breeding programmes, aimed at diversity expansion of winter oilseed rape gene pool, as the resynthesized embryos were derived in most combinations. New resynthesized verified lines were colchicine treated in order to obtain diploid regenerants and the fertile plants were self-pollinized and crossed with elite oilseed rape lines for further research and breeding.
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