Heading date QTL in a spring × winter barley cross evaluated in Mediterranean environments

Cuesta‐Marcos, Alfonso; Igartua, Ernesto; Ciudad, Francisco J.; Codesal, Primitiva; Russell, Joanne; Molina-Cano, José Luis; Moralejo, Marian; Szűcs, Péter; Gracia, María Pilar Rivero; Lasa, J. M.; Casas, Ana M.

doi:10.1007/s11032-007-9145-3

Cited by 56 publications

(86 citation statements)

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“…Sameri and Komatsuda (2007) also detected an effect in the region of VrnH1 on grain number per plant and kernel weight with opposing effects of alleles from the parents, Azumamugi and Kanto Nakate Gold, but they did not assess heading date. No effect of VrnH1 on grain yield was found in a study carried out in similar Mediterranean environments with the spring 9 winter population Beka 9 Mogador (Cuesta-Marcos et al 2009), nor was it found to have any significant effect on days to heading from an autumn sowing (Cuesta-Marcos et al 2008a). Comadran et al (2011) found significant QTL 9 environment interaction for SNPs closely linked to VrnH1 and VrnH2 in a genome-wide association study of yield for a diverse panel of barley genotypes that had been trialled over a number of different Mediterranean environments.…”

Section: Discussionmentioning

confidence: 95%

Quantitative trait loci for agronomic traits in an elite barley population for Mediterranean conditions

et al. 2013

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Advances in plant breeding through marker-assisted selection (MAS) are only possible when genes or quantitative trait loci (QTLs) can contribute to the improvement of elite germplasm. A population of recombinant inbred lines (RILs) was developed for one of the best crosses of the Spanish National Barley Breeding Program, between two six-row winter barley cultivars Orria and Plaisant. The objective of this study was to identify favourable QTLs for agronomic traits in this population, which may help to optimise breeding strategies for these and other elite materials for the Mediterranean region. A genetic linkage map was developed for 217 RILs, using 382 single nucleotide polymorphism markers, selected from the barley oligonucleotide pool assay BOPA1 and two genes. A subset of 112 RILs was evaluated for several agronomic traits over a period of 2 years at three locations, Lleida and Zaragoza (Spain) and Fiorenzuola d'Arda (Italy), for a total of five field trials. An important segregation distortion occurred during population development in the region surrounding the VrnH1 locus. A QTL for grain yield and length of growth cycle was also found at this locus, apparently linked to a differential response of the VrnH1 alleles to temperature. A total of 33 QTLs was detected, most of them for important breeding targets such as plant height and thousand-grain weight. QTL 9 environment interactions were prevalent for most of the QTLs detected, although most interactions were of a quantitative nature. Therefore, QTLs suitable for MAS for most traits were identified.

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Section: Discussionmentioning

confidence: 95%

Quantitative trait loci for agronomic traits in an elite barley population for Mediterranean conditions

et al. 2013

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“…Borrás-Gelonch et al (2012), following a series of experiments involving environments with artificially extended photoperiod, reported the two QTLs affected earliness on chromosome 2H. The regions on 2H were also the main determinants of heading date in autumn-sown experiments conducted using mapping populations grown under Mediterranean conditions (Moralejo et al 2004; Cuesta-Marcos et al 2008). Comadran et al (2011) reported five QTLs for heading date (located on 1H, 2H, 3H and 5H).…”

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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“…Selection for the VRNH1 gene was carried out using markers within the VRNH1 candidate gene HvBM5A, and using the microsatellite Bmag0223 as a flanking marker. These two markers are 50 cM apart in the map of the Beka × Mogador population (Cuesta-Marcos et al 2008) or 30 cM apart according to a new barley integrated map (Aghnoum et al 2010). In either case, the gap between these markers proved to be too large to facilitate clean recovery of the recurrent parent.…”

Section: Discussionmentioning

confidence: 99%

Introgression of an intermediate VRNH1 allele in barley (Hordeum vulgare L.) leads to reduced vernalization requirement without affecting freezing tolerance

Casao

Igartua

Karsaï³

et al. 2010

Mol Breeding

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The process of vernalization is mainly controlled by two genes in winter barley (Hordeum vulgare L.), VRNH1 and VRNH2. A recessive allele at VRNH1 and a dominant allele at VRNH2 must be present to induce a vernalization requirement. In addition, this process is usually associated with greater low-temperature tolerance.Spanish barleys originated in areas with mild winters and display a reduced vernalization requirement compared with standard winter cultivars. The objective of this study was to investigate the genetic origin of this reduced vernalization requirement and its effect on frost tolerance. We introgressed the regions that carry VRNH1 and VRNH2 of a typical Spanish barley line into a winter cultivar, Plaisant, using marker-assisted backcrossing. We present the results of a set of 12 lines introgressed with all four possible combinations of VRNH1 and VRNH2, which were evaluated for vernalization requirement and frost tolerance. The reduced vernalization requirement of the Spanish parent was confirmed, and was found to be completely due to the effect of the VRNH1 region. The backcross lines showed no decline in frost tolerance compared with that of the recurrent parent unless they carried an extra segment of chromosome 5H. This extra segment, a carryover of the backcross process, apparently contained the well-known frost tolerance QTL Fr-H2. We demonstrate that it is possible to manipulate the vernalization requirement with just minor effects on frost tolerance. This finding opens the path to create new types of barley cultivars that are better suited to specific environments, especially in a climate-change scenario.

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Heading date QTL in a spring × winter barley cross evaluated in Mediterranean environments

Cited by 56 publications

References 46 publications

Quantitative trait loci for agronomic traits in an elite barley population for Mediterranean conditions

Quantitative trait loci for agronomic traits in an elite barley population for Mediterranean conditions

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

Introgression of an intermediate VRNH1 allele in barley (Hordeum vulgare L.) leads to reduced vernalization requirement without affecting freezing tolerance

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