Genome Analysis: The State of Knowledge of Barley Genes

Druka, Arnis; Sato, Kazuhiro; Muehlbauer, Gary J.

doi:10.1002/9780470958636.ch4

Cited by 9 publications

(5 citation statements)

References 148 publications

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“…The IL Bowman(eam8.w) carries a base pair mutation leading to a premature stop codon in HvELF3, orthologous to ELF3 in Arabidopsis (Arabidopsis thaliana; Faure et al, 2012). Bowman(Ppd-H1) carries an introgression of the dominant Ppd-H1 allele from wild barley (Hordeum vulgare; Druka et al, 2011). The Scarlett derived ILs S42-IL107 and S42-IL176 carry a dominant allele of Ppd-H1 and a recessive winter Hvvrn1 allele, respectively, both derived from wild barley (von Korff et al, 2006;Schmalenbach et al, 2008;Wang et al, 2010).…”

Section: Plant Material Growth Conditions and Phenotypingmentioning

confidence: 99%

The Genetic Control of Reproductive Development under High Ambient Temperature

Ejaz

Korff

2016

Plant Physiol.

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Ambient temperature has a large impact on reproductive development and grain yield in temperate cereals. However, little is known about the genetic control of development under different ambient temperatures. Here, we demonstrate that in barley (Hordeum vulgare), high ambient temperatures accelerate or delay reproductive development depending on the photoperiod response gene PHOTOPERIOD1 (Ppd-H1) and its upstream regulator EARLY FLOWERING3 (HvELF3). A natural mutation in Ppd-H1 prevalent in spring barley delayed floral development and reduced the number of florets and seeds per spike, while the wild-type Ppd-H1 or a mutant Hvelf3 allele accelerated floral development and maintained the seed number under high ambient temperatures. High ambient temperature delayed the expression phase and reduced the amplitude of clock genes and repressed the floral integrator gene FLOWERING LOCUS T1 independently of the genotype. Ppd-H1-dependent variation in flowering time under different ambient temperatures correlated with relative expression levels of the BARLEY MADS-box genes VERNALIZATION1 (HvVRN1), HvBM3, and HvBM8 in the leaf. Finally, we show that Ppd-H1 interacts with regulatory variation at HvVRN1. Ppd-H1 only accelerated floral development in the background of a spring HvVRN1 allele with a deletion in the regulatory intron. The full-length winter Hvvrn1 allele was strongly down-regulated, and flowering was delayed by high temperatures irrespective of Ppd-H1. Our findings demonstrate that the photoperiodic and vernalization pathways interact to control flowering time and floret fertility in response to ambient temperature in barley.

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Section: Plant Material Growth Conditions and Phenotypingmentioning

confidence: 99%

The Genetic Control of Reproductive Development under High Ambient Temperature

Ejaz

Korff

2016

Plant Physiol.

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“…Barley ( Hordeum vulgare ssp. vulgare L.) is ranked the fourth most-produced cereal worldwide, providing fodder, human food, and substrate for malting ( Druka et al , 2011 ). Changing climate and increasing aridity poses a threat to future global food security ( Wheeler and von Braun, 2013 ), with drought stress, the major factor limiting crop yield ( Boyer, 1982 ; Araus et al , 2008 ), expected to further increase ( Wheeler and von Braun, 2013 ).…”

Section: Introductionmentioning

confidence: 99%

Genome scan identifies flowering-independent effects of barley HsDry2.2 locus on yield traits under water deficit

Merchuk-Ovnat

Silberman

Laiba

et al. 2018

Journal of Experimental Botany

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“…Barley is the fourth most important cereal crop worldwide in terms of planting area, and is primarily used for food, brewing, and animal feed ( Druka et al, 2011 ). In last few decades, malt quality of barley grains was heavily addressed and found to be associated with many chemical constituents and enzymes, such as β-amylase activity and β-glucan content ( Wei et al, 2009a ).…”

Section: Introductionmentioning

confidence: 99%

Metabolite Profiling of Barley Grains Subjected to Water Stress: To Explain the Genotypic Difference in Drought-Induced Impacts on Malting Quality

Wu¹,

Cai²,

Zhang³

et al. 2017

Front. Plant Sci.

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Grain weight and protein content will be reduced and increased, respectively, when barley is subjected to water stress after anthesis, consequently deteriorating the malt quality. However, such adverse impact of water stress differs greatly among barley genotypes. In this study, two Tibetan wild barley accessions and two cultivated varieties differing in water stress tolerance were used to investigate the genotypic difference in metabolic profiles during grain-filling stage under drought condition. Totally, 71 differently accumulated metabolites were identified, including organic acids, amino acids/amines, and sugars/sugar alcohols. Their relative contents were significantly affected by water stress for all genotypes and differed distinctly between the wild and cultivated barleys. The principal component analysis of metabolites indicated that the Tibetan wild barley XZ147 possessed a unique response to water stress. When subjected to water stress, the wild barley XZ147 showed the most increase of β-amylase activity among the four genotypes, as a result of its higher lysine content, less indole-3-acetic acid (IAA) biosynthesis, more stable H2O2 homeostasis, and more up-regulation of BMY1 gene. On the other hand, XZ147 had the most reduction of β-glucan content under water stress than the other genotypes, which could be explained by the faster grain filling process and the less expression of β-glucan synthase gene GSL7. All these results indicated a great potential for XZ147 in barley breeding for improving water stress tolerance.

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Genome Analysis: The State of Knowledge of Barley Genes

Cited by 9 publications

References 148 publications

The Genetic Control of Reproductive Development under High Ambient Temperature

The Genetic Control of Reproductive Development under High Ambient Temperature

Genome scan identifies flowering-independent effects of barley HsDry2.2 locus on yield traits under water deficit

Metabolite Profiling of Barley Grains Subjected to Water Stress: To Explain the Genotypic Difference in Drought-Induced Impacts on Malting Quality

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