Faculty of Biotechnology and Food Sciences in Nitra Journal of Microbiology, Biotechnology and Food Sciences 1338-5178 special issue 2 (Biotechnology) vol. 4 2015-02-02 2015-02-02 ASSESSMENT OF RAPD POLYMORPHISM IN RYE (SECALE CEREALE L.) GENOTYPES 94 97 EN Lenka Petrovičová Lenka Petrovičová Zdenka Gálová Zdenka Gálová Želmíra Balážová Želmíra Balážová Martin Vivodík Martin Vivodík Magdalena Wójcik-Jagła Magdalena Wójcik-Jagła Marcin Rapacz Marcin Rapacz The results of genetic analysis of 38 rye taxa (Secale cereale L.) represented by agricultural varieties originating from Central Europe and the Union of Soviet Socialist Republics (SUN) are presented. The genetic diversity of rye cultivars by 5 RAPD markers was evaluated. Five primers gave 42 polymorphic fragments (99.52 %) with an average of 8.4 bands per primer. The most polymorphic primer was RLZ12, where 10 polymorphic amplification products were detected. Overleaf the lowest polymorphic primer was RLZ5 with 7 polymorphic products. Genetic polymorphism was characterized based on diversity index (DI), probability of identity (PI) and polymorphic information content (PIC). The dendrogram of genetic similarity was constructed, based on the Jaccard´s coefficient. In dendrogram three clusters were differentiated. The first cluster contained genotypes from Czechoslovakia, Poland and Czech Republic. The second cluster contained cultivars coming from Union of Soviet Socialist Republics and Hungary. In the next cluster Poland, Czech Republic and Czechoslovakia genotypes were situated. Two genotypes Bosmo and Wibro have not been distinguished. For better distinction of the analysed rye genotypes, it is necessary to use a higher number of RAPD markers. In this experiment, RAPD proved to be a rapid, reliable and practicable method for revealing of polymorphism in the rye cultivars.
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