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Studium variability DNA pšenice
Pečinková, Jana
Common wheat is one of the most important agricultural plants, their use is not only feeding, but especially in the food industry. In recent years, great interest is focused on the wheat caryopsis unusual coloration, e.g. purple yellow and blue. This coloring is caused by natural dyes, which have evidently positive impact on living organisms. Therefore, the aim is to use colored wheat also in human nutrition. This work is focused on the detection of allelic composition at loci Glu-A3, Pina, Pinb and null allele's Waxy genes, using molecular markers based on PCR. Bread-making quality depends on the composition of storage proteins, glutenins and gliadins and their rate. It is important to the starch content in caryopses and the ratio of amylose and amylopectin. Milling, resp. feeding quality is affected by the hardness of wheat caryopses. Using molecular analysis in 13 genotypes with white (1 genotype), purple pericarp (8), yellow endosperm (4) has been described allelic variation at the locus Glu-A3, Pina-D1 and Pinb-D1, and null alleles at locus Wx-B1 were detected. The obtained results can be used in wheat breed-ing with an unusual coloration of kernels.
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