1RS translocation in Croatian winter wheat varieties

Abstract

SUMMARYThe translocation between the short arm of chromosome 1R of rye and the long arm of chromosome 1A, 1B or 1D of wheat represents practically the most common introduced foreign genes into the genome of hexaploid wheat. 1RS chromosome arm represents a source of different useful genes, associated with increased disease resistance, improved adaptability, stress tolerance, and increased stability and level of yield. On the other hand, translocation is associated with poor technological quality of wheat as a result of the presence of secalin and reduced number of gluten loci. The aim of this study was to determine the prevalence of 1RS translocation among some Croatian winter wheat varieties using molecular markers. The study included 40 varieties of which 23 Croatian. Four pairs of primers: RIS, SCM9, RYE-NOR and PAW161 were used for determination of translocation. The presence of translocation was determined in 12 of 40 (30%) varieties, while among the Croatian wheat varieties translocation had 8 of 23 (34.78%) varieties (Zlatna Dolina, Barbara, Nova Žitarka, Marija, Prima, Kuna, Koleda and Dea).

Leaf Scorching following Foliar Fertilization of Wheat with Urea or Urea–Ammonium Nitrate Is Caused by Ammonium Toxicity

“…On a global scale, cereal crops provide 48% of the total calories and 20% of the energy intake of the population [4,5]. Many factors influence the content of protein in grain and nitrogen (N) availability is one of the most important alongside genetic and environmental conditions [6,7].…”

Molecular identification of ω-secalin gene expression activity in a wheat 1B/1R translocation cultivar

“…Wheat cultivars with 1BL/1RS translocations, in which the 1RS arm is derived from Petkus rye, have been widely used in China and other countries for their good disease resistance, yield performance, and wide adaptability (Villarreal et al 1991;Carver and Rayburn 1994;Schlegel and Meinel 1994;Moreno-Sevilla et al 1995;McKendry et al 1996;Li et al 2004;Tahir et al 2014;Guberac et al 2015). In some major wheat growing areas of China, cultivars with 1BL/1RS translocations account for more than 50% of the crop (Zhou et al 2004).…”