Verbesserung von Ertragspotenzial und Brauqualität durch omics-basierte Zuchtwertschätzungen in der Wintergerstenzüchtung
Abstract
Barley (Hordeum vulgare L.) is the fourth most produced cereal crop worldwide, and plays an essential role in human and animal nutrition as well as in the brewing industry. In recent decades the growing world population and consumption demanded an increased barley yield production that has to be combined with superior malting quality. Malting quality, as a principal factor in brewing, and grain yield have a complex genetic architecture and are expensive to measure rendering both of them challenging targets in barley breeding programs. Current malting barley varieties suffer however from a lower grain yield in comparison to feeding barley. Massive changes in climate patterns and milder winters, have triggered farmers to more and more substitute spring barley, which is an initial source of malt, by winter barley. Hence, developing winter type malting barley via extensive crossing with spring barley is becoming a key objective in barley breeding programs. Longer periods of warm temperatures during autumn and winter are furthermore resulting in an increasing growth of pest populations. This leads to a higher frequency of virus-based diseases such as Barley yellow dwarf virus (BYDV), which is vector-transmitted by aphids. Since the common plant protection measure of neonicotinoid seed treatment was prohibited by new regulations from the European Commission, the most effective and sustainable approach to prevent yield losses by BYDV is the development of new resistant/tolerant varieties. The main goal for barley breeders is thus the simultaneous improvement of grain yield, malting quality and disease resistance to develop varieties that optimally pyramid the plethora of these agronomic characteristics. This poses a severe challenge to breeders due to the quantitative and multigenic inheritance of these traits, which are furthermore strongly influenced by different environmental and agronomical conditions. In this project, we aim to address this challenge by merging several omics-based breeding methods to accelerate the genetic improvement of winter malting barley. For this purpose, phenotypic data from multi-location grain yield, virus resistance, and micro-malting trials will serve as the basis to establish an omics-based breeding pipeline in an applied barley breeding program. This pipeline will facilitate a routine selection for virus resistance and superior yielding winter malting barley after completion of the project. The project will be carried out in a close collaborative work between the academic partner University of Natural Resources and Life Sciences Vienna (BOKU) and several industrial partners.
keywords barley virus resistance malting quality breeding value genomics
Publikationen
Project staff
Sebastian Michel
Dr. Sebastian Michel MSc.
sebastian.michel@boku.ac.at
Tel: +43 1 47654-97105
Project Leader
01.01.2022 - 08.01.2025
Hermann Bürstmayr
Univ.Prof. Dipl.-Ing. Dr.nat.techn. Hermann Bürstmayr
hermann.buerstmayr@boku.ac.at
Tel: +43 1 47654-97101, 97102
Project Staff
01.01.2022 - 08.01.2025
BOKU partners
External partners
Landwirtschaftliche Fachschule Edelhof
none
partner
Saatzucht Edelhof
none
partner
Association for promoting a sustainable and regional plant breeding
none
partner