A5075548435- Plant Pathogens and Fungal Diseases
- Yeasts and Rust Fungi Studies
- Plant Pathogens and Resistance
- Mycorrhizal Fungi and Plant Interactions
- Plant Disease Resistance and Genetics
- Turfgrass Adaptation and Management
- Plant-Microbe Interactions and Immunity
- Plant pathogens and resistance mechanisms
- Powdery Mildew Fungal Diseases
- Plant Pathogenic Bacteria Studies
- Fungal Biology and Applications
- Plant Disease Management Techniques
- Mycotoxins in Agriculture and Food
- Plant and fungal interactions
- Forest Insect Ecology and Management
- Plant and Fungal Interactions Research
- Legume Nitrogen Fixing Symbiosis
- RNA and protein synthesis mechanisms
- Genetic Mapping and Diversity in Plants and Animals
- Plant Virus Research Studies
- Genomics and Phylogenetic Studies
- Chromosomal and Genetic Variations
- Diphtheria, Corynebacterium, and Tetanus
- Public Health and Environmental Issues
- Cocoa and Sweet Potato Agronomy
Agricultural Research Service
2014-2024
United States Department of Agriculture
2014-2024
Agricultural Research Service - Northeast Area
2022
Beltsville Agricultural Research Center
2020-2021
University of Maryland, College Park
2019
Rutgers, The State University of New Jersey
2005-2016
Edward T. Schafer Agricultural Research Center
2016
Systematic (Netherlands)
2014
University of Washington
2011
University of Iowa
1981
Defining syntenic relationships among orthologous gene clusters is a frequent undertaking of biologists studying organismal evolution through comparative genomic approaches. With the increasing availability genome data made possible next-generation sequencing technology, there growing need for user-friendly tools capable assessing synteny. Here we present SimpleSynteny, new web-based platform directly interrogating collinearity local neighbors across multiple species in targeted manner....
Dollar spot is one of the most destructive and economically important fungal diseases amenity turfgrasses. The causal agent was first described in 1937 as ascomycete Sclerotinia homoeocarpa. However, genus-level taxonomic placement this fungus has been subject an ongoing debate for over 75 y. Existing morphological rDNA sequence evidence indicates that organism more appropriately placed family Rutstroemiaceae rather than Sclerotiniaceae. Here we use DNA data from samples dollar other members...
Because the genus Colletotrichum is among most important groups of plant pathogenic fungi worldwide, ability to accurately diagnose species vital for implementation effective disease control and quarantine measures. Although long-standing, unresolved taxonomic issues in have recently begun be addressed through multi-locus phylogenetic research, tools commonly used identification are either insufficiently variable (e.g. morphology), or homoplasic morphology host range criteria). In this...
ABSTRACT Colletotrichum species cause anthracnose diseases on a number of grass hosts and are common inhabitants many others. They divided into four species: C. sublineolum is pathogenic to Sorghum spp.; caudatum found C4 grasses such as indiangrass big bluestem; falcatum causes red rot sugarcane; graminicola sensu lato broadly defined including isolates that attack maize, wheat, oats, forage, turf, amenity the subfamily Pooideae. In this paper, combination hierarchal- nonhierarchal-based...
AbstractSpecies limits in the fungal genus Colletotrichum are traditionally distinguished by appressorial and/or conidial morphology or through host plant association, but both criteria criticized for their inability to resolve distinct taxa. In previous research eight novel falcate-spored species were identified from graminicolous hosts using multilocus molecular phylogenetic analysis. present work formal descriptions and illustrations provided six of new taxa: C. hanaui sp. nov.,...
Calonectria pseudonaviculata , the causal agent of disease Buxus spp. known as ‘box blight’, was first detected in mid‐1990s UK and New Zealand. Since then, geographic range box blight has rapidly expanded to at least 21 countries throughout temperate regions world, causing significant losses nurseries, gardens wild boxwood populations. This study determined genetic diversity a collection 234 isolates from diseased plants, originating 15 four continents. Two clades, G1 G2, were identified...
Abstract Background Colletotrichum fungi infect a wide diversity of monocot and dicot hosts, causing diseases on almost all economically important plants worldwide. is also suitable model for studying gene family evolution fine scale to uncover events in the genome associated with biological changes. Results Here we present sequences 30 species covering within genus. Evolutionary analyses revealed that ancestor diverged late Cretaceous parallel diversification flowering plants. We provide...
Over the past decade, emergence of anthracnose disease has newly challenged health turfgrasses on North American golf courses, resulting in considerable economic loss. The fungus responsible for outbreaks, Colletotrichum cereale, also been identified from numerous natural grasses and cereal crops, although symptoms are generally absent. Here we utilize phylogenetic population genetic analyses to determine role ecosystem advancement turfgrass assess whether grass and/or inhabitants implicated...
The genomes of fungi provide an important resource to resolve issues pertaining their taxonomy, biology, and evolution. Amanita jacksonii, Ceratocystis albifundus, a Fusarium circinatum variant, Huntiella omanensis, Leptographium procerum, Sclerotinia echinophila, Rutstroemia sydowiana are presented in this genome announcement. These seven from number fungal pathogens economically species. sizes range 27 Mb the case albifundus 51.9 for sydowiana. latter also encodes predicted 17 350 genes,...
Early and accurate diagnosis of new plant pathogens is vital for the rapid implementation effective mitigation strategies appropriate regulatory responses. Most commonly, pathogen identification relies on morphology DNA marker analysis. However, diseases, these approaches may not be sufficient precise diagnosis. In this study, we used whole-genome sequencing (WGS) to identify causal agent a disease affecting Sarcococca hookeriana (sarcococca). Blight symptoms were observed sarcococca...
Colletotrichum caudatum sensu lato is a widespread fungal pathogen of warm-season grasses. The fungus easily differentiated from other species through the presence unique filiform appendage at apex conidium. Multi-locus phylogenetic analysis four DNA sequence markers 21 isolates C. s.l. six grass hosts recovered morphospecies as well-supported monophyletic group. Although closely related to pathogenic grasses (e.g. sublineola, falcatum, navitas, graminicola), sister taxon placement remained...
The genomes of Chrysoporthe austroafricana, Diplodia scrobiculata, Fusarium nygami, Leptographium lundbergii, Limonomyces culmigenus, Stagonosporopsis tanaceti, and Thielaviopsis punctulata are presented in this genome announcement. These seven from endophytes, plant pathogens economically important fungal species. sizes range 26.6 Mb the case lundbergii to 44 for austroafricana. availability these data will provide opportunities resolve longstanding questions regarding taxonomy species...
Cryphonectria parasitica is the causal agent of chestnut blight, a fungal disease that almost entirely eliminated mature American from North America over 50-year period. Here, we formally report genome C. EP155 using Sanger shotgun sequencing approach. After finishing and integration with simple-sequence repeat markers, assembly was 43.8 Mb in 26 scaffolds (L50 = 5; N50 4.0Mb). Eight chromosomes are predicted: five have two telomeres six one telomere sequence. In total, 11,609 gene models...
The genus
Cranberry fruit rot (CFR) is caused by many species of fungi, with the contribution any given to disease complex varying among plantings Vaccinium macrocarpon within a site, sites regions, and regions years. This study assessed morphological molecular variability five widespread CFR‐causing fungi: Phyllosticta vaccinii , Coleophoma empetri Colletotrichum acutatum gloeosporioides Physalospora vaccinii. Although majority isolates had characteristics consistent published descriptions, some were...
Colletotrichum is a cosmopolitan, anamorphic fungal genus responsible for anthracnose disease in hundreds of plant species worldwide, including members the Poaceae. Anthracnose widely planted, non-native, warm-season lawn grass, Eremochloae ophiuroides (centipedegrass), commonly encountered southern United States, but causal agent has never been identified. We use DNA sequence data from modern cultures and archival fungarium specimens this study to determine identity fungus centipedegrass...
Downy mildew pathogens of graminicolous hosts (Poaceae) are members eight morphologically and phylogenetically distinct genera in the Peronosporaceae (Oomycota,Peronosporales). Graminicolous downy mildews (GDMs) cause severe losses crops such as maize, millets, sorghum, sugarcane many parts world, especially tropical climates. In countries where most destructive GDMs not endemic, these organisms often designated high-risk foreign subject to oversight quarantine by regulatory officials. Thus,...