Jonathan K. Richards
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View article: A Population Genomics Approach to Understand the Diversity, Migration, and Reproduction of the Rice Pathogen <i>Cercospora janseana</i>
A Population Genomics Approach to Understand the Diversity, Migration, and Reproduction of the Rice Pathogen <i>Cercospora janseana</i> Open
Cercospora janseana is the causal agent of narrow brown leaf spot (NBLS) on rice, an increasingly problematic disease in the southern United States. Historically, this disease was considered sporadic and a minor nuisance; however, recent N…
View article: A comparative transcriptomic analysis provides insights into molecular mechanisms driving salt tolerance in soybean
A comparative transcriptomic analysis provides insights into molecular mechanisms driving salt tolerance in soybean Open
View article: Rpt5 encodes a receptor-like protein that provides broad and effective net form net blotch (Pyrenophora teres f. teres) resistance in barley
Rpt5 encodes a receptor-like protein that provides broad and effective net form net blotch (Pyrenophora teres f. teres) resistance in barley Open
The foliar disease net form net blotch (NFNB), caused by the necrotrophic fungal pathogen Pyrenophora teres f. teres (Ptt), causes significant yield and quality losses of barley worldwide. Dominant resistance conferred by the Resistance to…
View article: Variability in Chromosome 1 of Select Moroccan <i>Pyrenophora teres</i> f. <i>teres</i> Isolates Overcomes a Highly Effective Barley Chromosome 6H Source of Resistance
Variability in Chromosome 1 of Select Moroccan <i>Pyrenophora teres</i> f. <i>teres</i> Isolates Overcomes a Highly Effective Barley Chromosome 6H Source of Resistance Open
Barley net form net blotch (NFNB) is a destructive foliar disease caused by Pyrenophora teres f. teres. Barley line CIho5791, which harbors the broadly effective chromosome 6H resistance gene Rpt5, displays dominant resistance to P. teres …
View article: Antimicrobial and phytotoxic secondary metabolites produced by Xylaria necrophora, an emerging pathogen of soybean, play key roles in infection biology
Antimicrobial and phytotoxic secondary metabolites produced by Xylaria necrophora, an emerging pathogen of soybean, play key roles in infection biology Open
Xylaria species are recognized globally given their common occurrence as wood-degrading saprophytes in forest ecosystems. They are known for their ability to produce secondary metabolites with diverse bioactivity. A few are pathogens, but …
View article: The Host Adapted Fungal Pathogens of<i>Pneumocystis</i>Genus Utilize Genic Regional Centromeres
The Host Adapted Fungal Pathogens of<i>Pneumocystis</i>Genus Utilize Genic Regional Centromeres Open
Centromeres are genomic regions that coordinate accurate chromosomal segregation during mitosis and meiosis. Yet, despite their essential function, centromeres evolve rapidly across eukaryotes. Centromeres are often the sites of chromosoma…
View article: A High-Quality Genome Assembly for <i>Cercospora janseana,</i> Causal Agent of Narrow Brown Leaf Spot of Rice
A High-Quality Genome Assembly for <i>Cercospora janseana,</i> Causal Agent of Narrow Brown Leaf Spot of Rice Open
Cercospora janseana causes narrow brown leaf spot of rice. A nearly complete telomere-to-telomere reference genome was assembled with a combination of Oxford Nanopore and Illumina sequences. The genome assembly has a total length of 39,075…
View article: De novo gene annotation of Parastagonospora nodorum reference isolate Sn79-1087
De novo gene annotation of Parastagonospora nodorum reference isolate Sn79-1087 Open
Denovo gene annotation of reference quality genome of Parastagonospora nodorum avirulent isolate Sn79-1087.
View article: Denovo gene annotation of Parastagonospora nodorum strain Sn2000
Denovo gene annotation of Parastagonospora nodorum strain Sn2000 Open
Denovo gene annotation of reference quality genome of Parastagonospora nodorum isolate Sn2000(also known as Sn2k).
View article: Denovo gene annotation of Parastagonospora nodorum strain Sn2000
Denovo gene annotation of Parastagonospora nodorum strain Sn2000 Open
Denovo gene annotation of reference quality genome of Parastagonospora nodorum strain Sn2000.
View article: Denovo gene annotation of Parastagonospora nodorum strain Sn2000
Denovo gene annotation of Parastagonospora nodorum strain Sn2000 Open
Denovo gene annotation of reference quality genome of Parastagonospora nodorum isolate Sn2000(also known as Sn2k). All the files labeled "Sn2k" represent the latest version (v2) of the Sn2000(Sn2k) annotation.
View article: Pathogen genetics identifies avirulence/virulence loci associated with barley chromosome 6H resistance in the<i>Pyrenophora teres</i>f.<i>teres</i>– barley interaction
Pathogen genetics identifies avirulence/virulence loci associated with barley chromosome 6H resistance in the<i>Pyrenophora teres</i>f.<i>teres</i>– barley interaction Open
Barley net form net blotch (NFNB) is a foliar disease caused by Pyrenophora teres f. teres . Barley line CIho5791, which harbors the chromosome 6H broad spectrum resistance gene Rpt5 , displays dominant resistance to P. teres f. teres . To…
View article: Association mapping reveals a reciprocal virulence/avirulence locus within diverse US Pyrenophora teres f. maculata isolates
Association mapping reveals a reciprocal virulence/avirulence locus within diverse US Pyrenophora teres f. maculata isolates Open
View article: Additional file 1 of Association mapping reveals a reciprocal virulence/avirulence locus within diverse US Pyrenophora teres f. maculata isolates
Additional file 1 of Association mapping reveals a reciprocal virulence/avirulence locus within diverse US Pyrenophora teres f. maculata isolates Open
Additional file 1: Supplemental File 1. R2valuesfor all pairwise comparisons across the chromosomes within the genome.
View article: Additional file 2 of Association mapping reveals a reciprocal virulence/avirulence locus within diverse US Pyrenophora teres f. maculata isolates
Additional file 2 of Association mapping reveals a reciprocal virulence/avirulence locus within diverse US Pyrenophora teres f. maculata isolates Open
Additional file 2: Supplemental File 2. Translated candidategene listed used for entry into SignalP, EffectorP and BLASTP.
View article: Mutations in a barley cytochrome P450 gene enhances pathogen induced programmed cell death and cutin layer instability
Mutations in a barley cytochrome P450 gene enhances pathogen induced programmed cell death and cutin layer instability Open
Disease lesion mimic mutants (DLMMs) are characterized by the spontaneous development of necrotic spots with various phenotypes designated as necrotic ( nec ) mutants in barley. The nec mutants were traditionally considered to have aberran…
View article: Genome-Wide Association and Selective Sweep Studies Reveal the Complex Genetic Architecture of DMI Fungicide Resistance in <i>Cercospora beticola</i>
Genome-Wide Association and Selective Sweep Studies Reveal the Complex Genetic Architecture of DMI Fungicide Resistance in <i>Cercospora beticola</i> Open
The rapid and widespread evolution of fungicide resistance remains a challenge for crop disease management. The demethylation inhibitor (DMI) class of fungicides is a widely used chemistry for managing disease, but there has been a gradual…
View article: The <i>Parastagonospora nodorum</i> necrotrophic effector SnTox5 targets the wheat gene <i>Snn5</i> and facilitates entry into the leaf mesophyll
The <i>Parastagonospora nodorum</i> necrotrophic effector SnTox5 targets the wheat gene <i>Snn5</i> and facilitates entry into the leaf mesophyll Open
Summary Parastagonospora nodorum is an economically important necrotrophic fungal pathogen of wheat. Parastagonospora nodorum secretes necrotrophic effectors that target wheat susceptibility genes to induce programmed cell death (PCD). In …
View article: A triple threat: the <i>Parastagonospora nodorum</i> SnTox267 effector exploits three distinct host genetic factors to cause disease in wheat
A triple threat: the <i>Parastagonospora nodorum</i> SnTox267 effector exploits three distinct host genetic factors to cause disease in wheat Open
Summary Parastagonospora nodorum is a fungal pathogen of wheat. As a necrotrophic specialist, it deploys effector proteins that target dominant host susceptibility genes to elicit programmed cell death (PCD). Here we identify and functiona…
View article: Mutations in a barley cytochrome P450 gene enhances pathogen induced programmed cell death and cutin layer instability
Mutations in a barley cytochrome P450 gene enhances pathogen induced programmed cell death and cutin layer instability Open
Disease lesion mimic mutants (DLMMs) are characterized by spontaneous development of necrotic spots with various phenotypes designated as necrotic ( nec ) mutants in barley. The nec mutants were traditionally considered to have aberrant re…
View article: The<i>Parastagonospora nodorum</i>necrotrophic effector SnTox5 targets the wheat gene<i>Snn5</i>and facilitates entry into the leaf mesophyll
The<i>Parastagonospora nodorum</i>necrotrophic effector SnTox5 targets the wheat gene<i>Snn5</i>and facilitates entry into the leaf mesophyll Open
Parastagonospora nodorum , causal agent of septoria nodorum blotch, is a destructive necrotrophic fungal pathogen of wheat. P. nodorum is known to secrete several necrotrophic effectors that target wheat susceptibility genes that trigger c…
View article: A triple threat: the<i>Parastagonospora nodorum</i>SnTox267 effector exploits three distinct host genetic factors to cause disease in wheat
A triple threat: the<i>Parastagonospora nodorum</i>SnTox267 effector exploits three distinct host genetic factors to cause disease in wheat Open
Parastagonospora nodorum is a fungal pathogen of wheat. As a necrotrophic specialist, it deploys a suite of effector proteins that target dominant host susceptibility genes to elicit programmed cell death (PCD). Nine effector – host suscep…
View article: P. nodorum de novo genome assemblies
P. nodorum de novo genome assemblies Open
De novo genome assemblies of 197 Parastagonospora nodorum isolates collected from the United States.
View article: P. nodorum de novo genome assemblies
P. nodorum de novo genome assemblies Open
De novo genome assemblies of 197 Parastagonospora nodorum isolates collected from the United States.
View article: The Barley HvWRKY6 Transcription Factor Is Required for Resistance Against Pyrenophora teres f. teres
The Barley HvWRKY6 Transcription Factor Is Required for Resistance Against Pyrenophora teres f. teres Open
Barley is an important cereal crop worldwide because of its use in the brewing and distilling industry. However, adequate supplies of quality malting barley are threatened by global climate change due to drought in some regions and excess …
View article: <i>Botrytis</i> spp.: A Contemporary Perspective and Synthesis of Recent Scientific Developments of a Widespread Genus that Threatens Global Food Security
<i>Botrytis</i> spp.: A Contemporary Perspective and Synthesis of Recent Scientific Developments of a Widespread Genus that Threatens Global Food Security Open
This perspective presents a synopsis of the topics contained in the Phytopathology Pathogen Spotlight on Botrytis spp. causing gray mold, including pathogen biology and systematics, genomic characterization of new species, perspectives on …
View article: Genome-wide association studies reveal the complex genetic architecture of DMI fungicide resistance in<i>Cercospora beticola</i>
Genome-wide association studies reveal the complex genetic architecture of DMI fungicide resistance in<i>Cercospora beticola</i> Open
Cercospora leaf spot is the most important disease of sugar beet worldwide. The disease is caused by the fungus Cercospora beticola and is managed principally by timely application of fungicides including those of the sterol demethylation …
View article: Transcriptome-wide association study identifies putative elicitors/suppressor of Puccinia graminis f. sp. tritici that modulate barley rpg4-mediated stem rust resistance
Transcriptome-wide association study identifies putative elicitors/suppressor of Puccinia graminis f. sp. tritici that modulate barley rpg4-mediated stem rust resistance Open
View article: Local adaptation drives the diversification of effectors in the fungal wheat pathogen Parastagonospora nodorum in the United States
Local adaptation drives the diversification of effectors in the fungal wheat pathogen Parastagonospora nodorum in the United States Open
Filamentous fungi rapidly evolve in response to environmental selection pressures in part due to their genomic plasticity. Parastagonospora nodorum, a fungal pathogen of wheat and causal agent of septoria nodorum blotch, responds to select…
View article: Genotyping-by-Sequencing for the Study of Genetic Diversity in<i>Puccinia triticina</i>
Genotyping-by-Sequencing for the Study of Genetic Diversity in<i>Puccinia triticina</i> Open
Leaf rust, caused by Puccinia triticina Erikss., is globally the most widespread rust of wheat. Populations of P. triticina are highly diverse for virulence, with many different races found annually. The genetic diversity of P. triticina p…