Powdery mildew resistance genes in spring barley cultivars registered in Slovakia from 2000 to 2010

• Published in: Cereal research communications Vol. 40; no. 4; pp. 494 - 501
• Main Authors: Dreiseitl, A, K. KrižanovÃ
• Format: Journal Article
• Language: English
• Published: Cham Akadémiai Kiadà 01.12.2012; AKADÉMIAI KIADÓ; Springer International Publishing
• Subjects: Agriculture; Barley; Blumeria graminis; Blumeria graminis f. sp. hordei; Breeding; Crop harvesting; cultivars; Disease resistance; gene postulation; genes; Genetic heterogeneity; Hordeum vulgare; Life Sciences; Mildews; Nadir; Near field communication; parents; pathogen isolates; Pathogens; Pathology; pedigree analysis; Plant Breeding/Biotechnology; Plant Genetics and Genomics; Plant Physiology; Plants; powdery mildew; resistance spectra; seedlings; spring barley; Slovakia; gene postulation; resistance spectra; pathogen isolates; f. sp; pedigree analysis
• ISSN: 0133-3720; 1788-9170
• DOI: 10.1556/CRC.40.2012.0008

Spring barley was the second largest crop in Slovakia. Resistance genes in cultivars registered in Slovakia from 2000 to 2010 were identified using the postulation method. Forty-three cultivars including 30 individually harvested plants, two parents ‘Meltan’ and ‘Pax’ and a standard line SK5968 were tested at the seedling stage for their reaction to 40 selected isolates of Blumeria graminis f. sp. hordei. In total, 19 resistance spectra were detected and the following 13 resistance genes were postulated, namely mlo, Mla1, Mla6, Mla12, Mla13, MlaRu4, Mlat, Mlg, MlLa, Ml(Ab), Ml(Hu4), Ml(Ro) and Ml(St). Two unknown resistances were detected in ‘Calcule’ and ‘Spilka’. Two cultivars (‘Madonna’ and ‘Nadir’) exhibited heterogeneity for mildew resistance. The most frequent gene was mlo, which was present in 25 of the tested cultivars. Some new results to previously published data were found.