Malting quality molecular markers for barley breeding

Leona Leišová-Svobodová, Vratislav Psota, Marta Zavřelová, Martin Kříž, Pavel Mařík and Zdeněk Nesvadba
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Vratislav Psota: Research Institute of Brewing and Malting, Brno, Czech Republic
Marta Zavřelová: Agrotest fyto, s.r.o., Kroměříž, Czech Republic
Martin Kříž: SELGEN, a.s., Sibřina, Czech Republic
Pavel Mařík: SELGEN, a.s., Sibřina, Czech Republic
Zdeněk Nesvadba: Crop Research Institute, Prague Ruzyně, Czech Republic

Czech Journal of Genetics and Plant Breeding, 2024, vol. 60, issue 2, 70-78

Abstract: Barley is one of the world's most important crops. Barley is used for both food and feed and is important for the production of malt. Malt quality is a complex function of barley genetics, environmental conditions during barley growth, and the technological aspects of the malting process. Due to the high heritability of more than half of the malting parameters, barley can be bred for malting quality. Marker-assisted selection (MAS) is a good way to speed up the breeding process. In this study, nine molecular markers were used to screen 115 barley varieties and breeding lines over a four-year period. The results were compared with malting quality parameters. Multicomponent correlation analysis showed a good correlation (R = 0.63; P ≤ 0.01) between marker screening results and malting quality parameters. In 93 genotypes (80.9%), agreement was found between molecular marker prediction and malting quality determination. Differences between molecular marker screening and malt quality parameters and possible improvements are discussed. The use of molecular markers in MAS is highly appreciated by barley breeders.

Keywords: Hordeum vulgare L.; malting quality parameters; marker-assisted selection; polymorphism (search for similar items in EconPapers)
Date: 2024
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Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlcjg:v:60:y:2024:i:2:id:72-2023-cjgpb

DOI: 10.17221/72/2023-CJGPB

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