Exploring the Serbian GenBank barley (Hordeum vulgare L. subsp. vulgare) collection for powdery mildew resistance

Šurlan-Momirović, Gordana; Flath, Kerstin; Silvar, Cristina; Branković, Gordana; Kopahnke, Doris; Knežević, D.; Schliephake, Edgar; Ordon, Frank; Perović, Dragan

doi:10.1007/s10722-015-0246-2

Cited by 14 publications

(12 citation statements)

References 52 publications

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“…For example, seven out of 159 local landraces of the Spanish core collection were resistant to seven Bgh isolates ( Silvar et al, 2009 ). Furthermore, only one out of 147 Chinese varieties was resistant to all 32 isolates of Bgh ( Dreiseitl and Yang, 2007 ), and no powdery mildew resistance to 28 isolates was found among 129 genotypes obtained from the Serbian barley gene bank ( Šurlan-Momirović et al, 2016 ). Thus, Hvs is recognized as a good source of broadly acting resistance to Bgh .…”

Section: Discussionmentioning

confidence: 99%

Heterogeneity of Powdery Mildew Resistance Revealed in Accessions of the ICARDA Wild Barley Collection

Dreiseitl

2017

Front. Plant Sci.

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The primary genepool of barley comprises two subspecies – wild barley (Hordeum vulgare subsp. spontaneum) and cultivated barley H. vulgare. subsp. vulgare. The former originated 5.5 million years ago in southwest Asia and is the immediate ancestor of cultivated barley, which arose around 10,000 years ago. In this study, the specific resistance of a set of 146 wild barley accessions, maintained by the International Center for Agriculture Research in the Dry Areas (ICARDA), to 32 isolates of barley powdery mildew caused by Blumeria graminis f. sp. hordei was evaluated. The set comprised 146 heterogeneous accessions of a previously tested collection. Seed was obtained by single seed descent and each accession was usually represented by five single plant progenies. In total, 687 plant progenies were tested. There were 211 phenotypes of resistance among the accessions, 87 of which were found in single plants, while 202 plants contained the eight most common phenotypes. The most frequent phenotype was found in 56 plants that were susceptible to all pathogen isolates, whereas the second most frequent phenotype, which occurred in 46 plants, was resistant to all isolates. The broad resistance diversity that was revealed is of practical importance and is an aid to determining the extent and role of resistance in natural ecosystems.

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Section: Discussionmentioning

confidence: 99%

Heterogeneity of Powdery Mildew Resistance Revealed in Accessions of the ICARDA Wild Barley Collection

Dreiseitl

2017

Front. Plant Sci.

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“…Bgh infection values were determined in a detached leaf assay using second leaves of approximately 12-day-old seedlings, as described [ 91 ]. First, a worldwide collection of 76 landraces (WHEALBI_LRC) was inoculated either with isolate JKI-75 or JKI-242, which exhibit a complex and complementing virulence spectra [ 92 ]. Second, a worldwide collection of 127 cultivars (WHEALBI_CULT) was inoculated with the same two Bgh isolates.…”

Section: Methodsmentioning

confidence: 99%

Evolutionarily conserved partial gene duplication in the Triticeae tribe of grasses confers pathogen resistance

Rajaraman¹,

Douchkov²,

Lück³

et al. 2018

Genome Biol

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BackgroundThe large and highly repetitive genomes of the cultivated species Hordeum vulgare (barley), Triticum aestivum (wheat), and Secale cereale (rye) belonging to the Triticeae tribe of grasses appear to be particularly rich in gene-like sequences including partial duplicates. Most of them have been classified as putative pseudogenes. In this study we employ transient and stable gene silencing- and over-expression systems in barley to study the function of HvARM1 (for H. vulgare Armadillo 1), a partial gene duplicate of the U-box/armadillo-repeat E3 ligase HvPUB15 (for H. vulgare Plant U-Box 15).ResultsThe partial ARM1 gene is derived from a gene-duplication event in a common ancestor of the Triticeae and contributes to quantitative host as well as nonhost resistance to the biotrophic powdery mildew fungus Blumeria graminis. In barley, allelic variants of HvARM1 but not of HvPUB15 are significantly associated with levels of powdery mildew infection. Both HvPUB15 and HvARM1 proteins interact in yeast and plant cells with the susceptibility-related, plastid-localized barley homologs of THF1 (for Thylakoid formation 1) and of ClpS1 (for Clp-protease adaptor S1) of Arabidopsis thaliana. A genome-wide scan for partial gene duplicates reveals further events in barley resulting in stress-regulated, potentially neo-functionalized, genes.ConclusionThe results suggest neo-functionalization of the partial gene copy HvARM1 increases resistance against powdery mildew infection. It further links plastid function with susceptibility to biotrophic pathogen attack. These findings shed new light on a novel mechanism to employ partial duplication of protein-protein interaction domains to facilitate the expansion of immune signaling networks.Electronic supplementary materialThe online version of this article (10.1186/s13059-018-1472-7) contains supplementary material, which is available to authorized users.

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“…Many other sets of barley landraces collected in Tunisia [ 52 ], Morocco [ 53 , 54 , 55 , 56 , 57 , 58 , 59 , 60 , 61 ], Australia [ 62 ], China [ 51 ], Greece [ 63 ], Jordan [ 64 ], Latvia [ 65 ], Libya [ 66 ], Spain [ 28 , 67 , 68 ], Turkey [ 69 , 70 ] or from more than one area [ 71 , 72 , 73 , 74 , 75 , 76 , 77 ] have been studied, and numerous known and unknown specific resistances were characterized including accessions resistant to a wide range of pathogen isolates.…”

Section: Specific Resistancementioning

confidence: 99%

Specific Resistance of Barley to Powdery Mildew, Its Use and Beyond: A Concise Critical Review

Dreiseitl

2020

Genes

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Powdery mildew caused by the airborne ascomycete fungus Blumeria graminis f. sp. hordei (Bgh) is one of most common diseases of barley (Hordeum vulgare). This, as with many other plant pathogens, can be efficiently controlled by inexpensive and environmentally-friendly genetic resistance. General requirements for resistance to the pathogens are effectiveness and durability. Resistance of barley to Bgh has been studied intensively, and this review describes recent research and summarizes the specific resistance genes found in barley varieties since the last conspectus. Bgh is extraordinarily adaptable, and some commonly recommended strategies for using genetic resistance, including pyramiding of specific genes, may not be effective because they can only contribute to a limited extent to obtain sufficient resistance durability of widely-grown cultivars. In spring barley, breeding the nonspecific mlo gene is a valuable source of durable resistance. Pyramiding of nonspecific quantitative resistance genes or using introgressions derived from bulbous barley (Hordeum bulbosum) are promising ways for breeding future winter barley cultivars. The utilization of a wide spectrum of nonhost resistances can also be adopted once practical methods have been developed.

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Exploring the Serbian GenBank barley (Hordeum vulgare L. subsp. vulgare) collection for powdery mildew resistance

Cited by 14 publications

References 52 publications

Heterogeneity of Powdery Mildew Resistance Revealed in Accessions of the ICARDA Wild Barley Collection

Heterogeneity of Powdery Mildew Resistance Revealed in Accessions of the ICARDA Wild Barley Collection

Evolutionarily conserved partial gene duplication in the Triticeae tribe of grasses confers pathogen resistance

Specific Resistance of Barley to Powdery Mildew, Its Use and Beyond: A Concise Critical Review

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