Curtis Pozniak
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View article: Author Correction: Striking convergent selection history of wheat and barley and its potential for breeding
Author Correction: Striking convergent selection history of wheat and barley and its potential for breeding Open
International audience
View article: Guard cell and whole plant expression of AtTOR improves performance under drought and enhances water use efficiency
Guard cell and whole plant expression of AtTOR improves performance under drought and enhances water use efficiency Open
Water use efficiency is an important target for breeding of improved drought resistance. Minimizing leaf transpirational water loss plays a key role in drought resistance. But this reduces CO2 levels in leaves, which often reduces photosyn…
View article: Cas9 endonuclease: a molecular tool for in vitro cloning and CRISPR edit detection
Cas9 endonuclease: a molecular tool for in vitro cloning and CRISPR edit detection Open
Large genetic engineering constructs often face limitations in DNA element addition or replacement due to lack of unique endonuclease recognition sites. Traditional restriction resistance methods can identify CRISPR-induced mutants efficie…
View article: A barley pan-transcriptome reveals layers of genotype-dependent transcriptional complexity
A barley pan-transcriptome reveals layers of genotype-dependent transcriptional complexity Open
A pan-transcriptome describes the transcriptional and post-transcriptional consequences of genome diversity from multiple individuals within a species. We developed a barley pan-transcriptome using 20 inbred genotypes representing domestic…
View article: Priority actions for Fusarium head blight resistance in durum wheat: Insights from the wheat initiative
Priority actions for Fusarium head blight resistance in durum wheat: Insights from the wheat initiative Open
Fusarium head blight (FHB), mainly caused by Fusarium graminearum and Fusarium culmorum , is a major wheat disease. Significant efforts have been made to improve resistance to FHB in bread wheat ( Triticum aestivum ), but more work is need…
View article: Rapid identification of <i>Fusarium</i> species causing head blight in Canada using MALDI-TOF mass spectrometry
Rapid identification of <i>Fusarium</i> species causing head blight in Canada using MALDI-TOF mass spectrometry Open
Fusarium head blight is a limitation to grain production and can be caused by several different Fusarium species. We evaluated the ability of matrix-assisted laser desorption/ionization time of flight mass spectrometry (MALDI-TOF MS) to pe…
View article: Structural variation in the pangenome of wild and domesticated barley
Structural variation in the pangenome of wild and domesticated barley Open
Pangenomes are collections of annotated genome sequences of multiple individuals of a species1. The structural variants uncovered by these datasets are a major asset to genetic analysis in crop plants2. Here we report a pangenome of barley…
View article: Nitrogen deficiency tolerance conferred by introgression of a QTL derived from wild emmer into bread wheat
Nitrogen deficiency tolerance conferred by introgression of a QTL derived from wild emmer into bread wheat Open
Key message Genetic dissection of a QTL from wild emmer wheat, QGpc.huj.uh-5B.2, introgressed into bread wheat, identified candidate genes associated with tolerance to nitrogen deficiency, and potentially useful for improving nitrogen-use …
View article: Divergent molecular pathways govern temperature-dependent wheat stem rust resistance genes Sr6, Sr13 and Sr21
Divergent molecular pathways govern temperature-dependent wheat stem rust resistance genes Sr6, Sr13 and Sr21 Open
The wheat stem rust pathogen, Puccinia graminis f. sp. tritici (Pgt), has caused devastating crop losses worldwide. Several stem rust resistance (Sr) genes display temperature-dependent immune responses. Sr6-mediated resistance is enhanced…
View article: Coordinated function of paired NLRs confers<i>Yr84</i>-mediated stripe rust resistance in wheat
Coordinated function of paired NLRs confers<i>Yr84</i>-mediated stripe rust resistance in wheat Open
Cloning of resistance genes expands our understanding of their function and facilitates their deployment in breeding. Here, we report the cloning of two genes from wild emmer wheat ( Triticum turgidum ssp. dicoccoides ) underlying Yr84 -me…
View article: Atlas of tandem kinase proteins across the plant kingdom
Atlas of tandem kinase proteins across the plant kingdom Open
Plant pathogens pose a continuous threat to global food production. Recent discoveries in plant immunity research unveiled a unique protein family characterized by an unusual resistance protein structure that combines two kinase domains (K…
View article: The wild emmer wheat grain protein content 5B QTL introgressed into bread wheat is associated with tolerance to nitrogen deficiency .
The wild emmer wheat grain protein content 5B QTL introgressed into bread wheat is associated with tolerance to nitrogen deficiency . Open
Nitrogen (N) is an essential macronutrient for wheat growth and development, its deficiency negatively affects grain yield and grain protein content (GPC). We describe here the dissection of the high grain protein content (GPC) QTL (QGpc.h…
View article: Adaptive diversification through structural variation in barley
Adaptive diversification through structural variation in barley Open
Pangenomes are collections of annotated genome sequences of multiple individuals of a species. The structural variants uncovered by these datasets are a major asset to genetic analysis in crop plants. Here, we report a pangenome of barley …
View article: De novo annotation of the wheat pan-genome reveals complexity and diversity of the hexaploid wheat pan-transcriptome
De novo annotation of the wheat pan-genome reveals complexity and diversity of the hexaploid wheat pan-transcriptome Open
Wheat is the most widely cultivated crop in the world with over 215 million hectares grown annually. However, to meet the demands of a growing global population, breeders face the challenge of increasing wheat production by approximately 6…
View article: Origin and evolution of the bread wheat D genome
Origin and evolution of the bread wheat D genome Open
Bread wheat ( Triticum aestivum ) is a globally dominant crop and major source of calories and proteins for the human diet. Compared to its wild ancestors, modern bread wheat shows lower genetic diversity caused by polyploidisation, domest…
View article: Genome scans capture key adaptation and historical hybridization signatures in tetraploid wheat
Genome scans capture key adaptation and historical hybridization signatures in tetraploid wheat Open
Tetraploid wheats ( Triticum turgidum L.), including durum wheat ( T. turgidum ssp . durum (Desf.) Husn.), are important crops with high nutritional and cultural values. However, their production is constrained by sensitivity to environmen…
View article: Wheat Sequencing: The Pan-Genome and Opportunities for Accelerating Breeding
Wheat Sequencing: The Pan-Genome and Opportunities for Accelerating Breeding Open
Wheat is a crucial crop globally, with widespread cultivation and significant economic importance. To ensure food security amidst the increasing human population and new production challenges, such as climate change, it is imperative to de…
View article: Multi-locus genome-wide association studies reveal the genetic architecture of Fusarium head blight resistance in durum wheat
Multi-locus genome-wide association studies reveal the genetic architecture of Fusarium head blight resistance in durum wheat Open
Durum wheat is more susceptible to Fusarium head blight (FHB) than other types or classes of wheat. The disease is one of the most devastating in wheat; it reduces yield and end-use quality and contaminates the grain with fungal mycotoxins…
View article: Sequencing 4.3 million mutations in wheat promoters to understand and modify gene expression
Sequencing 4.3 million mutations in wheat promoters to understand and modify gene expression Open
Wheat is an important contributor to global food security, and further improvements are required to feed a growing human population. Functional genetics and genomics tools can help us to understand the function of different genes and to en…
View article: Identification of Fusarium head blight sources of resistance and associated QTLs in historical and modern Canadian spring wheat
Identification of Fusarium head blight sources of resistance and associated QTLs in historical and modern Canadian spring wheat Open
Fusarium head blight (FHB) is one the most globally destructive fungal diseases in wheat and other small grains, causing a reduction in grain yield by 10–70%. The present study was conducted in a panel of historical and modern Canadian spr…
View article: Sequencing 4.3 million mutations in wheat promoters to understand and modify gene expression
Sequencing 4.3 million mutations in wheat promoters to understand and modify gene expression Open
Wheat is an important contributor to global food security, and further improvements are required to feed a growing human population. New functional genetics and genomics tools can help us to understand the function of different genes and t…
View article: High-density genetic mapping of Fusarium head blight resistance and agronomic traits in spring wheat
High-density genetic mapping of Fusarium head blight resistance and agronomic traits in spring wheat Open
Fusarium head blight (FHB) has rapidly become a major challenge to successful wheat production and competitive end-use quality in western Canada. Continuous effort is required to develop germplasm with improved FHB resistance and understan…