Abstract
61 varieties of wheat collected in the gene fund of the Research Institute of Crop Husbandry were screened using SCAR-markers associated with the gene of resistance to brown leaf rust, Lr19. As a result of PCR analysis using SCS123 marker the 737 bp locus was detected in 48 genotypes. The expected fragment of the 688 bp was detected in 53 genotypes using the SCS253 marker. The results obtained using both markers indicate that the Lr19 gene is present on 7D chromosomes of 45 genotypes. The existence of the Lr19 gene has not been proven only for 5 from the 61 analyzed wheat genotypes.
Highlights
Wheat is the most cultivated cereal crop, giving almost 30% of global grain production and providing food for more than a half the Earth’s population
61 varieties of wheat collected in the gene fund of the Research Institute of Crop Husbandry were screened using SCAR-markers associated with the gene of resistance to brown leaf rust, Lr19
One of the common and harmful diseases of cereal crops is brown leaf rust caused by basidium fungus Puccinia recondite f. sp. tritici [1,2,3]
Summary
Wheat is the most cultivated cereal crop, giving almost 30% of global grain production and providing food for more than a half the Earth’s population. In Azerbaijan, wheat is strategically important crop for covering needs of the population in food products. It is cultivated annually in different regions of the republic at the area of over 580 thousands of hectares. One of the common and harmful diseases of cereal crops is brown leaf rust caused by basidium fungus Puccinia recondite f. Brown leaf rust still remains the most harmful wheat disease in the world, despite of the advances in studying the nature of plant resistance, structure and variability of pathogen population and the success of practical breeding for resistance. I.e. creation of varieties resistant to infection, is the most cost effective, environmentally safe, and highly relevant method in the integrated system for protection of agricultural plants from these diseases [5,6]
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