title: Quantitative Trait Loci for Yield and Yield-Related Traits in Spring Barley Populations Derived from Crosses between European and Syrian Cultivars.
abstract: In response to climatic changes, breeding programmes should be aimed at creating new cultivars with improved resistance to water scarcity. The objective of this study was to examine the yield potential of barley recombinant inbred lines (RILs) derived from three cross-combinations of European and Syrian spring cultivars, and to identify quantitative trait loci (QTLs) for yield-related traits in these populations. RILs were evaluated in field experiments over a period of three years (2011 to 2013) and genotyped with simple sequence repeat (SSR) and single nucleotide polymorphism (SNP) markers; a genetic map for each population was constructed and then one consensus map was developed. Biological interpretation of identified QTLs was achieved by reference to Ensembl Plants barley gene space. Twelve regions in the genomes of studied RILs were distinguished after QTL analysis. Most of the QTLs were identified on the 2H chromosome, which was the hotspot region in all three populations. Syrian parental cultivars contributed alleles decreasing traits' values at majority of QTLs for grain weight, grain number, spike length and time to heading, and numerous alleles increasing stem length. The phenomic and molecular approaches distinguished the lines with an acceptable grain yield potential combining desirable features or alleles from their parents, that is, early heading from the Syrian breeding line (Cam/B1/CI08887//CI05761) and short plant stature from the European semidwarf cultivar (Maresi).
authors.affiliation: Institute of Plant Genetics, Polish Academy of Sciences, Strzeszyńska 34, 60-479 Poznań, Poland.
authors.forename: Krzysztof
authors.initials: K
authors.lastname: Mikołajczak
authors.affiliation: Institute of Plant Genetics, Polish Academy of Sciences, Strzeszyńska 34, 60-479 Poznań, Poland.
authors.forename: Piotr
authors.initials: P
authors.lastname: Ogrodowicz
authors.affiliation: Department of Genetics, Faculty of Biology and Environmental Protection, University of Silesia, Jagiellońska 28, 40-032 Katowice, Poland.
authors.forename: Kornelia
authors.initials: K
authors.lastname: Gudyś
authors.affiliation: Institute of Plant Genetics, Polish Academy of Sciences, Strzeszyńska 34, 60-479 Poznań, Poland.
authors.forename: Karolina
authors.initials: K
authors.lastname: Krystkowiak
authors.affiliation: Institute of Plant Genetics, Polish Academy of Sciences, Strzeszyńska 34, 60-479 Poznań, Poland.
authors.forename: Aneta
authors.initials: A
authors.lastname: Sawikowska
authors.affiliation: Institute of Plant Genetics, Polish Academy of Sciences, Strzeszyńska 34, 60-479 Poznań, Poland.
authors.forename: Wojciech
authors.initials: W
authors.lastname: Frohmberg
authors.affiliation: Institute of Plant Genetics, Polish Academy of Sciences, Strzeszyńska 34, 60-479 Poznań, Poland.
authors.forename: Andrzej
authors.initials: A
authors.lastname: Górny
authors.affiliation: Institute for Agricultural and Forest Environment, Polish Academy of Sciences, Bukowska 19, 60-809 Poznań, Poland.
authors.forename: Andrzej
authors.initials: A
authors.lastname: Kędziora
authors.affiliation: Institute for Agricultural and Forest Environment, Polish Academy of Sciences, Bukowska 19, 60-809 Poznań, Poland.
authors.forename: Janusz
authors.initials: J
authors.lastname: Jankowiak
authors.affiliation: Institute for Agricultural and Forest Environment, Polish Academy of Sciences, Bukowska 19, 60-809 Poznań, Poland.
authors.forename: Damian
authors.initials: D
authors.lastname: Józefczyk
authors.affiliation: Institute for Agricultural and Forest Environment, Polish Academy of Sciences, Bukowska 19, 60-809 Poznań, Poland.
authors.forename: Grzegorz
authors.initials: G
authors.lastname: Karg
authors.affiliation: Institute for Agricultural and Forest Environment, Polish Academy of Sciences, Bukowska 19, 60-809 Poznań, Poland.
authors.forename: Joanna
authors.initials: J
authors.lastname: Andrusiak
authors.affiliation: Institute of Plant Genetics, Polish Academy of Sciences, Strzeszyńska 34, 60-479 Poznań, Poland.
authors.forename: Paweł
authors.initials: P
authors.lastname: Krajewski
authors.affiliation: Department of Genetics, Faculty of Biology and Environmental Protection, University of Silesia, Jagiellońska 28, 40-032 Katowice, Poland.
authors.forename: Iwona
authors.initials: I
authors.lastname: Szarejko
authors.affiliation: Institute of Plant Genetics, Polish Academy of Sciences, Strzeszyńska 34, 60-479 Poznań, Poland.
authors.forename: Maria
authors.initials: M
authors.lastname: Surma
authors.affiliation: Institute of Plant Genetics, Polish Academy of Sciences, Strzeszyńska 34, 60-479 Poznań, Poland.
authors.forename: Tadeusz
authors.initials: T
authors.lastname: Adamski
authors.affiliation: Department of Genetics, Faculty of Biology and Environmental Protection, University of Silesia, Jagiellońska 28, 40-032 Katowice, Poland.
authors.forename: Justyna
authors.initials: J
authors.lastname: Guzy-Wróbelska
authors.affiliation: Institute of Plant Genetics, Polish Academy of Sciences, Strzeszyńska 34, 60-479 Poznań, Poland.
authors.forename: Anetta
authors.initials: A
authors.lastname: Kuczyńska
mesh_terms: D002874:Chromosome Mapping; D032461:Chromosomes, Plant / Q000235:genetics*; D003433:Crosses, Genetic; D005060:Europe; D017343:Genes, Plant / Q000235:genetics*; D001467:Hordeum / Q000235:genetics*; D010641:Phenotype; D040641:Quantitative Trait Loci / Q000235:genetics*; D013593:Syria