Pleiotropic effects of the sdw1 locus in barley populations representing different rounds of recombination

Kuczyńska, Anetta; Mikołajczak, Krzysztof; Ćwiek, Hanna

doi:10.1016/j.ejbt.2014.07.005

Cited by 27 publications

(30 citation statements)

References 35 publications

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“…In the region of QTL for HD detected on 3H no QTL for stem length was found. It should be noted that on 3H sdw1/denso locus causing reduction of plant height was localized and several studies revealed that this locus may also be associated with flowering time (Barua et al 1993; Laurie et al 1994; Bezant et al 1996; Kuczyńska et al 2013, 2014). …”

Section: Discussionmentioning

confidence: 99%

QTLs for earliness and yield-forming traits in the Lubuski × CamB barley RIL population under various water regimes

et al. 2016

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Drought has become more frequent in Central Europe causing large losses in cereal yields, especially of spring crops. The development of new varieties with increased tolerance to drought is a key tool for improvement of agricultural productivity. Material for the study consisted of 100 barley recombinant inbred lines (RILs) (LCam) derived from the cross between Syrian and European parents. The RILs and parental genotypes were examined in greenhouse experiments under well-watered and water-deficit conditions. During vegetation the date of heading, yield and yield-related traits were measured. RIL population was genotyped with microsatellite and single nucleotide polymorphism markers. This population, together with two other populations, was the basis for the consensus map construction, which was used for identification of quantitative trait loci (QTLs) affecting the traits. The studied lines showed a large variability in heading date. It was noted that drought-treatment negatively affected the yield and its components, especially when applied at the flag leaf stage. In total, 60 QTLs were detected on all the barley chromosomes. The largest number of QTLs was found on chromosome 2H. The main QTL associated with heading, located on chromosome 2H (Q.HD.LC-2H), was identified at SNP marker 5880–2547, in the vicinity of Ppd-H1 gene. SNP 5880–2547 was also the closest marker to QTLs associated with plant architecture, spike morphology and grain yield. The present study showed that the earliness allele from the Syrian parent, as introduced into the genome of an European variety could result in an improvement of barley yield performance under drought conditions.Electronic supplementary materialThe online version of this article (doi:10.1007/s13353-016-0363-4) contains supplementary material, which is available to authorized users.

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Section: Discussionmentioning

confidence: 99%

QTLs for earliness and yield-forming traits in the Lubuski × CamB barley RIL population under various water regimes

et al. 2016

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“…Plant height is under polygenic control and represents one of the most important agronomic traits for barley [97,98]. The right timing of flowering time allows optimal grain development with regards to the availability of heat, light, and water, while semi-dwarf cereals allocate more resources into grain production than taller plants and show reduced losses through lodging [99,100].…”

Section: Gene Descriptionmentioning

confidence: 99%

Mapping of quantitative trait loci for traits linked to fusarium head blight in barley

et al. 2020

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Fusarium head blight (FHB) is a devastating disease occurring in small grain cereals worldwide. The disease results in the reduction of grain yield, and mycotoxins accumulated in grain are also harmful to both humans and animals. It has been reported that response to pathogen infection may be associated with the morphological and developmental traits of the host plant, e.g. earliness and plant height. Despite many studies, effective markers for selection of barley genotypes with increased resistance to FHB have not been developed. In the present study, we investigated 100 recombinant inbred lines (RIL) of spring barley. Plants were examined in field conditions (three locations) in a completely randomized design with three replications. Barley genotypes were artificially infected with spores of Fusarium culmorum before heading. Apart from the main phenotypic traits (plant height, spike characteristic, grain yield), infected kernels were visually scored and the content of deoxynivalenol (DON) mycotoxin was investigated. A set of 70 Quantitative Trait Loci (QTLs) were detected through phenotyping of the mapping population in field conditions and genotyping using a barley Ilumina 9K iSelect platform. Six loci were detected for the FHB index on chromosomes 2H, 3H, 5H, and 7H. A region on the short arm of chromosome 2H was detected in which many QTLs associated with FHB-and yield-related traits were found. This study confirms that agromorphological traits are tightly related to FHB and should be taken into consideration when breeding barley plants for FHB resistance.

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“…It was mapped on the long arm of chromosome 3H (Barua et al 1993) and several molecular markers were reported to be co-located with the sdw1/denso region, mostly the microsatellite Bmag0013 (e.g. Baum et al 2003; Kuczyńska et al 2014). Recently, SNP 6716–823 (11_10867) (Malosetti et al 2011) and SNP 5260–462 (11_10754) (Pasam et al 2012) have been suggested to be linked to the sdw1/denso locus.…”

Section: Introductionmentioning

confidence: 99%

“…Recently, considerable progress has been made in understanding the sdw1/denso gene structure and its functions (Jia et al 2009, 2011, 2015; Kuczyńska and Wyka 2011; Kuczyńska et al 2012, 2014), but knowledge about effects of this gene on agronomic traits under water shortages is still limited. Nevertheless, some data suggest its favourable effects on yield in dry environments.…”

Section: Introductionmentioning

confidence: 99%

Quantitative trait loci for plant height in Maresi × CamB barley population and their associations with yield-related traits under different water regimes

et al. 2016

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High-yielding capacity of the modern barley varieties is mostly dependent on the sources of semi-dwarfness associated with the sdw1/denso locus. The objective of the study was to identify quantitative trait loci (QTLs) associated with the plant height and yield potential of barley recombinant inbred lines (RILs) grown under various soil moisture regimes. The plant material was developed from a hybrid between the Maresi (European cv.) and CamB (Syrian cv.). A total of 103 QTLs affecting analysed traits were detected and 36 of them showed stable effects over environments. In total, ten QTLs were found to be significant only under water shortage conditions. Nine QTLs affecting the length of main stem were detected on 2H-6H chromosomes. In four of the detected QTLs, alleles contributed by Maresi had negative effects on that trait, the most significant being the QLSt-3H.1-1 in the 3H.1 linkage group. The close linkage between QTLs identified around the sdw1/denso locus, with positive alleles contributed by Maresi, indicates that the semi-dwarf cv. Maresi could serve as a donor of favourable traits resulting in grain yield improvement, also under water scarcity. Molecular analyses revealed that the Syrian cv. also contributed alleles which increased the yield potential. Available barley resources of genomic annotations were employed to the biological interpretation of detected QTLs. This approach revealed 26 over-represented Gene Ontology terms. In the projected support intervals of QGWSl-5H.3-2 and QLSt-5H.3 on the chromosome 5H, four genes annotated to ‘response to stress’ were found. It suggests that these QTL-regions may be involved in a response of plant to a wide range of environmental disturbances.Electronic supplementary materialThe online version of this article (doi:10.1007/s13353-016-0358-1) contains supplementary material, which is available to authorized users.

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Pleiotropic effects of the sdw1 locus in barley populations representing different rounds of recombination

Cited by 27 publications

References 35 publications

QTLs for earliness and yield-forming traits in the Lubuski × CamB barley RIL population under various water regimes

QTLs for earliness and yield-forming traits in the Lubuski × CamB barley RIL population under various water regimes

Mapping of quantitative trait loci for traits linked to fusarium head blight in barley

Quantitative trait loci for plant height in Maresi × CamB barley population and their associations with yield-related traits under different water regimes

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