Molecular markers of genetic variability in triticale varieties registered in the Czech Republic

Abstract

Genetic variability was detected in 15 varieties of triticale (XTriticosecale Wittmack., 2n = 6x = 42, BBAARR) registered in the Czech Republic by means of polymorphism of DNA using the RAPD method and the SSR method. For detection we used 80 RAPD primers. The lower reproducibility of the RAPD markers was resolved by means of repeated analyses (3–4 times). On the basis of statistical evaluation a dendrogram was set up, which allows highly significantly to differentiate the varieties Kolor, Modus and Tornado. The remaining 12 analysed varieties formed 4 clusters. In addition to the RAPD markers a protocol of detection of DNA polymorphism was elaborated and optimised with microsatellite (SSR) markers. For the analyses we used 2 SSR markers (1A chromosome [Xpsp2999] and 1B chromosome [Xpsp3000]), which have been discovered in wheat (T. aestivum L.). Basing on these two SSR markers the only variety Triamant was distinguished from the clusters of the other analysed varieties.

Keywords

• triticale
• <i>XTriticosecale</i> Wittmack.
• DNA markers
• RAPD
• SSR