Recurrent genomic selection for combining resistance genes and improvement of yield and agronomic performance in winter barley. Subproject 2
Project code: JKI-RS-08-3401, 2818203615
Contract period: 01.09.2016 - 31.08.2019
Budget: 122,471 Euro
Purpose of research: Applied research
The goals of our project are (1) to extend methods of genome wide-prediction to applications in resistance breeding in barley, (2) to employ these methods in a recurrent selection program to increase tolerance for barley yellow dwarf virus and resistance for Pyrenophora teres combined with a high yield potential, in order to (3) develop barley lines carrying resistance genes from exotic donors in high yielding elite genetic background. In the project, we will develop new methods to exploit the potential of genetic resources in few generations without any risk of having negative effects on agronomic traits and yield, which were observed when using conventional crossing strategies for introgression of favorable genes from exotic donors in elite breeding matrial. As resistance donors, we will use lines that were developed in previous resarch projects and that carry resistance genes not available in the elite pool.
The goal of the project is to extend methods of genome wide-prediction to applications in resistance breeding in barley to employ these methods in recurrent selection program to increase tolerance for BYDV and resistance to Pyrenophora teres f. teres combined with high yield potential. In the first year 250 DH lines tested for resistance to BYDV and Pyrenophora teres f. teres in field and greenhouse tests and were genotyped by the 50K iSelect chip (Trade Genetics, Gatersleben). All data were transfered to the project partner JLU in Gießen for evaluation and selection of the most promising DH lines for the next crossing program.