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Zuniga AI, Baggio JS, Peres NA. A Semi-Selective Medium to Evaluate Over-Summering Survival of Neopestalotiopsis sp. in Florida Strawberry Fields. PLANT DISEASE 2024; 108:2096-2103. [PMID: 38411605 DOI: 10.1094/pdis-11-23-2304-re] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/28/2024]
Abstract
Devastating disease outbreaks with leaf spot symptoms and fruit rot caused by a fungus identified as a cryptic species of Neopestalotiopsis have generated concern in the Florida strawberry industry. Some Neopestalotiopsis species are saprobes in soil and plant debris, but the ability of the new Neopestalotiopsis sp. to survive in strawberry debris was unknown. Therefore, the objectives of this study were to develop a semiselective medium for isolation of Neopestalotiopsis spp. and to evaluate Neopestalotiopsis sp. survival in soil and strawberry plant debris over the summer in Florida. The Neopestalotiopsis semiselective medium (NSM) inhibited growth of most fungal species pathogenic to strawberry in Florida, except Neopestalotiopsis rosae, Neopestalotiopsis sp., and Phomopsis obscurans, in addition to Penicillium spp., which are nonpathogenic. However, Neopestalotiopsis species, P. obscurans, and Penicillium spp. could be distinguished in the medium through morphological characteristics. Soil samples arbitrarily collected from six commercial fields toward the end of the season (May) and before (July) and after (September) preplant soil fumigation in the following season were processed with NSM, and Neopestalotiopsis spp. populations were calculated as CFU per gram of soil. CFU ranged from 48.3 to 2,410.8 at the end of the season and from 1.7 to 630.8 before soil fumigation, but Neopestalotiopsis spp. were not recovered after soil treatment. However, 1.7 to 25 CFU were obtained from the nontreated areas in the row middles. Neopestalotiopsis sp. survival was also evaluated on diseased strawberry plants (leaves and crowns) exposed to the environment for 17 months. On leaves, Neopestalotiopsis spp. were recovered for 6 months before leaf decomposition, whereas the number of CFU on crowns declined monthly, but colonies were still recovered during the final evaluation months. A high-resolution melting analysis confirmed most of the colonies from soil and crowns were the new Neopestalotiopsis sp. Our results show Neopestalotiopsis sp. can survive in soil and strawberry debris under Florida summer conditions and may serve as a source of inoculum for the subsequent season.
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Affiliation(s)
- Adrian I Zuniga
- University of Florida, Gulf Coast Research and Education Center, Wimauma, FL 33598
| | - Juliana S Baggio
- University of Florida, Gulf Coast Research and Education Center, Wimauma, FL 33598
| | - Natalia A Peres
- University of Florida, Gulf Coast Research and Education Center, Wimauma, FL 33598
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Bray N, Sopwith W, Edmunds M, Vansteenhouse H, Feenstra JDM, Jacobs P, Rajput K, O'Connell AM, Smith ML, Blomquist P, Hatziioanou D, Elson R, Vivancos R, Gallagher E, Wigglesworth MJ, Dominiczak A, Hopkins S, Lake IR. RT-PCR genotyping assays to identify SARS-CoV-2 variants in England in 2021: a design and retrospective evaluation study. THE LANCET. MICROBE 2024; 5:e173-e180. [PMID: 38244555 DOI: 10.1016/s2666-5247(23)00320-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Revised: 09/29/2023] [Accepted: 09/29/2023] [Indexed: 01/22/2024]
Abstract
BACKGROUND Whole-genome sequencing (WGS) is the gold standard diagnostic tool to identify and genetically characterise emerging pathogen mutations (variants), but cost, capacity, and timeliness limit its use when large populations need rapidly assessing. We assessed the potential of genotyping assays to provide accurate and timely variant information at scale by retrospectively examining surveillance for SARS-CoV-2 variants in England between March and September, 2021, when genotyping assays were used widely for variant detection. METHODS We chose a panel of four RT-PCR genotyping assays to detect circulating variants of SARS-COV-2 in England and developed a decision algorithm to assign a probable SARS-CoV-2 variant to samples using the assay results. We extracted surveillance data from the UK Health Security Agency databases for 115 934 SARS-CoV-2-positive samples (March 1-Sept 6, 2021) when variant information was available from both genotyping and WGS. By comparing the genotyping and WGS variant result, we calculated accuracy metrics (ie, sensitivity, specificity, and positive predictive value [PPV]) and the time difference between the sample collection date and the availability of variant information. We assessed the number of samples with a variant assigned from genotyping or WGS, or both, over time. FINDINGS Genotyping and an initial decision algorithm (April 10-May 11, 2021 data) were accurate for key variant assignment: sensitivities and PPVs were 0·99 (95% CI 0·99-0·99) for the alpha, 1·00 (1·00-1·00) for the beta, and 0·91 (0·80-1·00) for the gamma variants; specificities were 0·97 (0·96-0·98), 1·00 (1·00-1·00), and 1·00 (1·00-1·00), respectively. A subsequent decision algorithm over a longer time period (May 27-Sept 6, 2021 data) remained accurate for key variant assignment: sensitivities were 0·91 (95% CI 0·74-1·00) for the beta, 0·98 (0·98-0·99) for the delta, and 0·93 (0·81-1·00) for the gamma variants; specificities were 1·00 (1·00-1·00), 0·96 (0·96-0·97), and 1·00 (1·00-1·00), respectively; and PPVs were 0·83 (0·62-1·00), 1·00 (1·00-1·00), and 0·78 (0·59-0·97), respectively. Genotyping produced variant information a median of 3 days (IQR 2-4) after the sample collection date, which was faster than with WGS (9 days [8-11]). The flexibility of genotyping enabled a nine-times increase in the quantity of samples tested for variants by this method (from 5000 to 45 000). INTERPRETATION RT-PCR genotyping assays are suitable for high-throughput variant surveillance and could complement WGS, enabling larger scale testing for known variants and timelier results, with important implications for effective public health responses and disease control globally, especially in settings with low WGS capacity. However, the choice of panels of RT-PCR assays is highly dependent on database information on circulating variants generated by WGS, which could limit the use of genotyping assays when new variants are emerging and spreading rapidly. FUNDING UK Health Security Agency and National Institute for Health Research Health Protection Research Unit in Emergency Preparedness and Response.
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Affiliation(s)
- Neil Bray
- UK Health Security Agency, London, UK
| | | | | | - Harper Vansteenhouse
- UK Health Security Agency, London, UK; BioClavis, Glasgow, UK; NHS Test and Trace, Department of Health & Social Care, London, UK; Alderley Lighthouse Labs, Macclesfield, UK
| | | | - Peter Jacobs
- Thermo Fisher Scientific, South San Francisco, CA, USA
| | - Kamal Rajput
- NHS Test and Trace, Department of Health & Social Care, London, UK
| | | | | | | | | | - Richard Elson
- UK Health Security Agency, London, UK; School of Environmental Sciences, University of East Anglia, Norwich, UK; NIHR Health Protection Research Unit in Emergency Preparedness and Response, London, UK
| | - Roberto Vivancos
- UK Health Security Agency, London, UK; NIHR Health Protection Research Unit in Gastrointestinal Infections and NIHR Health Protection Research Unit in Emerging and Zoonotic Infections, Liverpool, UK
| | | | | | - Anna Dominiczak
- UK Health Security Agency, London, UK; NHS Test and Trace, Department of Health & Social Care, London, UK; School of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow, UK
| | - Susan Hopkins
- UK Health Security Agency, London, UK; NIHR Health Protection Research Unit in in Health Care Acquired Infections and Antimicrobial Resistance, London, UK
| | - Iain R Lake
- UK Health Security Agency, London, UK; School of Environmental Sciences, University of East Anglia, Norwich, UK; NIHR Health Protection Research Unit in Emergency Preparedness and Response, London, UK.
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Santhanam P, Labbé C, Tremblay V, Bélanger RR. A rapid molecular diagnostic tool to discriminate alleles of avirulence genes and haplotypes of Phytophthora sojae using high-resolution melting analysis. MOLECULAR PLANT PATHOLOGY 2024; 25:e13406. [PMID: 38009407 PMCID: PMC10799203 DOI: 10.1111/mpp.13406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2023] [Revised: 10/02/2023] [Accepted: 11/03/2023] [Indexed: 11/28/2023]
Abstract
Effectors encoded by avirulence genes (Avr) interact with the Phytophthora sojae resistance gene (Rps) products to generate incompatible interactions. The virulence profile of P. sojae is rapidly evolving as a result of the large-scale deployment of Rps genes in soybean. For a successful exploitation of Rps genes, it is recommended that soybean growers use cultivars containing the Rps genes corresponding to Avr genes present in P. sojae populations present in their fields. Determination of the virulence profile of P. sojae isolates is critical for the selection of soybean cultivars. High-resolution melting curve (HRM) analysis is a powerful tool, first applied in medicine, for detecting mutations with potential applications in different biological fields. Here, we report the development of an HRM protocol, as an original approach to discriminate effectors, to differentiate P. sojae haplotypes for six Avr genes. An HRM assay was performed on 24 P. sojae isolates with different haplotypes collected from soybean fields across Canada. The results clearly confirmed that the HRM assay discriminated different virulence genotypes. Moreover, the HRM assay was able to differentiate multiple haplotypes representing small allelic variations. HRM-based prediction was validated by phenotyping assays. This HRM assay provides a unique, cost-effective and efficient tool to predict virulence pathotypes associated with six different Avr (1b, 1c, 1d, 1k, 3a and 6) genes from P. sojae, which can be applied in the deployment of appropriate Rps genes in soybean fields.
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Affiliation(s)
- Parthasarathy Santhanam
- Département de PhytologieUniversité LavalQuebecQuebecCanada
- Present address:
Agriculture Agri‐Food Canada, MRDCMordenManitobaCanada
| | - Caroline Labbé
- Département de PhytologieUniversité LavalQuebecQuebecCanada
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Marin MV, Baggio JS, Oh Y, Han H, Chandra S, Wang NY, Lee S, Peres NA. Identification of sequence mutations in Phytophthora cactorum genome associated with mefenoxam resistance and development of a molecular assay for the mutant detection in strawberry (F. × ananassa). Sci Rep 2023; 13:7385. [PMID: 37149656 PMCID: PMC10164155 DOI: 10.1038/s41598-023-34271-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Accepted: 04/26/2023] [Indexed: 05/08/2023] Open
Abstract
Phytophthora crown rot (PhCR) caused by Phytophthora cactorum is one of the most damaging diseases of strawberry worldwide. Mefenoxam is one of the major fungicides currently used to manage PhCR. However, the emergence and spread of resistant isolates have made controlling the pathogen in the field problematic. In the present study, using whole genome sequencing analysis, mutations associated with mefenoxam-resistant isolates were identified in six different genomic regions of P. cactorum. The 95.54% reads from a sensitive isolate pool and 95.65% from a resistant isolate pool were mapped to the reference genome of P. cactorum P414. Four point mutations were in coding regions while the other two were in noncoding regions. The genes harboring mutations were functionally unknown. All mutations present in resistant isolates were confirmed by sanger sequencing of PCR products. For the rapid diagnostic assay, SNP-based high-resolution melting (HRM) markers were developed to differentiate mefenoxam-resistant P. cactorum from sensitive isolates. The HRM markers R3-1F/R3-1R and R2-1F/R2-1R were suitable to differentiate both sensitive and resistant profiles using clean and crude DNA extraction. None of the mutations associated with mefenoxam resistance found in this study were in the RNA polymerase subunit genes, the hypothesized target of this compound in oomycetes. Our findings may contribute to a better understanding of the mechanisms of resistance of mefenoxam in oomycetes since serves as a foundation to validate the candidate genes as well as contribute to the monitoring of P. cactorum populations for the sustainable use of this product.
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Affiliation(s)
- Marcus V Marin
- Department of Plant Pathology, University of Florida, Gainesville, FL, 32611, U.S.A
- Gulf Coast Research and Education Center, University of Florida, Wimauma, FL, 33598, U.S.A
| | - Juliana S Baggio
- Gulf Coast Research and Education Center, University of Florida, Wimauma, FL, 33598, U.S.A
| | - Youngjae Oh
- Gulf Coast Research and Education Center, University of Florida, Wimauma, FL, 33598, U.S.A
- Department of Horticultural Science, Chungbuk National University, Cheongju, South Korea
| | - Hyeondae Han
- Gulf Coast Research and Education Center, University of Florida, Wimauma, FL, 33598, U.S.A
| | - Saket Chandra
- School of Biotechnology, National Institute of Technology Calicut, Kozhikode, India
| | - Nan-Yi Wang
- Gulf Coast Research and Education Center, University of Florida, Wimauma, FL, 33598, U.S.A
| | - Seonghee Lee
- Gulf Coast Research and Education Center, University of Florida, Wimauma, FL, 33598, U.S.A..
- Horticultural Science Department, University of Florida, Gainesville, FL, 32611, U.S.A..
| | - Natalia A Peres
- Department of Plant Pathology, University of Florida, Gainesville, FL, 32611, U.S.A..
- Gulf Coast Research and Education Center, University of Florida, Wimauma, FL, 33598, U.S.A..
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Wang NY, Gama AB, Marin MV, Peres NA. Development of a Multiplex High-Throughput Diagnostic Assay for the Detection of Strawberry Crown Rot Diseases Using High-Resolution Melting Analysis. PHYTOPATHOLOGY 2021; 111:1470-1483. [PMID: 33754805 DOI: 10.1094/phyto-12-20-0556-r] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Rapid and accurate disease diagnosis is a prerequisite for an effective disease management program in strawberry production. In Florida, Colletotrichum spp., Phytophthora spp., and Macrophomina phaseolina are the primary microorganisms causing strawberry crown rot. Even though the diseases can be caused by different pathogens, symptoms are indistinguishable and equally devastating. To inform strawberry growers in a timely fashion of diagnostic results for effective deployment of chemical control practices, we developed a multiplex high-resolution melting (HRM) assay to rapidly and accurately detect the abovementioned pathogens. The multiplex HRM assays using three predesigned primer pairs showed high specificity for individual species by generating specific melting peaks without cross-reaction between primers or with other common strawberry pathogens. The amplification limit of the assay was 1 pg of Colletotrichum and Phytophthora and 100 pg of M. phaseolina DNA per 10-μl reaction. However, the presence of different melting peaks was observed in mixed DNA samples and was concentration and target DNA dependent. A crude DNA extraction protocol was developed to allow high-throughput screening by minimizing the inhibitory effects. Moreover, we applied the HRM assay to 522 plant samples and found high correlations between conventional pathogen isolation and HRM and between singleplex and multiplex assays. Altogether, this multiplex HRM assay is specific, cost effective, and reliable for the timely detection of strawberry crown rot pathogens.
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Affiliation(s)
- Nan-Yi Wang
- Gulf Coast Research and Education Center, Plant Pathology Department, Institute of Food and Agricultural Sciences, University of Florida, Wimauma, FL 33598
| | - Andre Bueno Gama
- Gulf Coast Research and Education Center, Plant Pathology Department, Institute of Food and Agricultural Sciences, University of Florida, Wimauma, FL 33598
| | - Marcus Vinicius Marin
- Gulf Coast Research and Education Center, Plant Pathology Department, Institute of Food and Agricultural Sciences, University of Florida, Wimauma, FL 33598
| | - Natalia A Peres
- Gulf Coast Research and Education Center, Plant Pathology Department, Institute of Food and Agricultural Sciences, University of Florida, Wimauma, FL 33598
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Miles TD, Neill TM, Colle M, Warneke B, Robinson G, Stergiopoulos I, Mahaffee WF. Allele-Specific Detection Methods for QoI Fungicide-Resistant Erysiphe necator in Vineyards. PLANT DISEASE 2021; 105:175-182. [PMID: 33186075 DOI: 10.1094/pdis-11-19-2395-re] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Grapevine powdery mildew (GPM), caused by the fungus Erysiphe necator, is a constant threat to worldwide production of grape berries, requiring repeated use of fungicides for management. The frequent fungicide applications have resulted in resistance to commonly used quinone outside inhibitor (QoI) fungicides and the resistance is associated with single-nucleotide polymorphisms (SNPs) in the mitochondrial cytochrome b gene (cytb). In this study, we attempted to detect the most common SNP causing a glycine to alanine substitution at amino acid position 143 (i.e., G143A) in the cytb protein, to track this resistance using allele-specific TaqMan probe and digital-droplet PCR-based assays. Specificity and sensitivity of these assays showed that these two assays could discriminate SNPs and were effective on mixed samples. These diagnostic assays were implemented to survey E. necator samples collected from leaf and air samples from California and Oregon grape-growing regions. Sequencing of PCR amplicons and phenotyping of isolates also revealed that these assays accurately detected each allele (100% agreement), and there was an absolute agreement between the presence or absence of the G143A mutation and resistance to QoIs in the E. necator sampled. These results indicate that the developed diagnostic tools will help growers make informed decisions about fungicide selections and applications which, in turn, will facilitate GPM disease management and improve grape production systems.
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Affiliation(s)
- Timothy D Miles
- Michigan State University, Department of Plant, Soil and Microbial Sciences, East Lansing, MI 48824
| | - Tara M Neill
- United States Department of Agriculture-Agricultural Research Service, Corvallis, OR 97330
| | - Marivi Colle
- Michigan State University, Department of Plant, Soil and Microbial Sciences, East Lansing, MI 48824
| | - Brent Warneke
- Department of Botany and Plant Pathology, Oregon State University, Corvallis, OR 97330
| | - Guy Robinson
- Department of Plant Pathology, University of California-Davis, Davis, CA 95616
| | | | - Walter F Mahaffee
- United States Department of Agriculture-Agricultural Research Service, Corvallis, OR 97330
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Weldon WA, Knaus BJ, Grünwald NJ, Havill JS, Block MH, Gent DH, Cadle-Davidson LE, Gadoury DM. Transcriptome-Derived Amplicon Sequencing Markers Elucidate the U.S. Podosphaera macularis Population Structure Across Feral and Commercial Plantings of Humulus lupulus. PHYTOPATHOLOGY 2021; 111:194-203. [PMID: 33044132 DOI: 10.1094/phyto-07-20-0299-fi] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Obligately biotrophic plant pathogens pose challenges in population genetic studies due to their genomic complexities and elaborate culturing requirements with limited biomass. Hop powdery mildew (Podosphaera macularis) is an obligately biotrophic ascomycete that threatens sustainable hop production. P. macularis populations of the Pacific Northwest (PNW) United States differ from those of the Midwest and Northeastern United States, lacking one of two mating types needed for sexual recombination and harboring two strains that are differentially aggressive on the cultivar Cascade and able to overcome the Humulus lupulus R-gene R6 (V6), respectively. To develop a high-throughput marker platform for tracking the flow of genotypes across the United States and internationally, we used an existing transcriptome of diverse P. macularis isolates to design a multiplex of 54 amplicon sequencing markers, validated across a panel of 391 U.S. samples and 123 international samples. The results suggest that P. macularis from U.S. commercial hop yards form one population closely related to P. macularis of the United Kingdom, while P. macularis from U.S. feral hop locations grouped with P. macularis of Eastern Europe. Included in this multiplex was a marker that successfully tracked V6-virulence in 65 of 66 samples with a confirmed V6-phenotype. A new qPCR assay for high-throughput genotyping of P. macularis mating type generated the highest resolution distribution map of P. macularis mating type to date. Together, these genotyping strategies enable the high-throughput and inexpensive tracking of pathogen spread among geographical regions from single-colony samples and provide a roadmap to develop markers for other obligate biotrophs.
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Affiliation(s)
- William A Weldon
- Section of Plant Pathology and Plant-Microbe Biology, Cornell AgriTech, Cornell University, Geneva, NY 14456
| | - Brian J Knaus
- Department of Botany and Plant Pathology, Corvallis, OR 97331
| | - Niklaus J Grünwald
- U.S. Department of Agriculture-Agricultural Research Service Horticultural Crops Research Unit, Corvallis, OR 97330
| | - Joshua S Havill
- Department of Agronomy and Plant Genetics, University of Minnesota, St. Paul, MN 55108
| | - Mary H Block
- Department of Botany and Plant Pathology, Corvallis, OR 97331
| | - David H Gent
- U.S. Department of Agriculture-Agricultural Research Service Forage Seed and Cereal Research Unit, Corvallis, OR 97331
| | - Lance E Cadle-Davidson
- Section of Plant Pathology and Plant-Microbe Biology, Cornell AgriTech, Cornell University, Geneva, NY 14456
- U.S. Department of Agriculture-Agricultural Research Service Grape Genetics Research Unit, Geneva, NY 14456
| | - David M Gadoury
- Section of Plant Pathology and Plant-Microbe Biology, Cornell AgriTech, Cornell University, Geneva, NY 14456
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Lyzhin A, Luk’yanchuk I. Assessment of strawberry varieties by anthracnose resistance gene. BIO WEB OF CONFERENCES 2021. [DOI: 10.1051/bioconf/20213402007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The results of marker-assisted identification of the Rca2 anthracnose resistance gene in promising strawberry varieties were shown. The DNA marker STS-Rca2_240, linked to the Rca2 anthracnose resistance allele was identified in varieties Albion and Aprica (F. × ananassa), and variety Dar (F. × anashata). Strawberry varieties Alpha, Bereginya, Kokinskaya Zarya, Pamyati Zubova, Rubinovy kaskad, Slavutich, Yuniol, Big King, Brilla, Joly, Rumba and Vivara are characterized by the absence of the marker STS-Rca2_240. In strawberry varieties with the identified marker STS-Rca2_240 (Dar, Albion and Aprica), the Rca2 gene can be in a dominant homozygous or heterozygous state, which makes it possible to recommend these genotypes for use in breeding for anthracnose resistance.
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Dowling M, Peres N, Villani S, Schnabel G. Managing Colletotrichum on Fruit Crops: A "Complex" Challenge. PLANT DISEASE 2020; 104:2301-2316. [PMID: 32689886 DOI: 10.1094/pdis-11-19-2378-fe] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The fungal genus Colletotrichum includes numerous important plant pathogenic species and species complexes that infect a wide variety of hosts. Its taxonomy is particularly complex because species' phenotypes and genotypes are difficult to differentiate. Two notable complexes, C. acutatum and C. gloeosporioides, are known for infecting temperate fruit crops worldwide. Even species within these complexes vary in traits such as tissue specificity, aggressiveness, geographic distribution, and fungicide sensitivity. With few effective chemicals available to control these pathogens, and the persistent threat of fungicide resistance, there is a need for greater understanding of this destructive genus and the methods that can be used for disease management. This review summarizes current research on diseases caused by Colletotrichum spp. on major fruit crops in the United States, focusing on the taxonomy of species involved, disease management strategies, and future management outlook.
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Affiliation(s)
- Madeline Dowling
- Department of Plant and Environmental Sciences, Clemson University, Clemson, SC 29634
| | - Natalia Peres
- Department of Plant Pathology, University of Florida, Gulf Coast Research and Education Center, Wimauma, FL 33598
| | - Sara Villani
- Department of Entomology & Plant Pathology, North Carolina State University, Raleigh, NC 27695
| | - Guido Schnabel
- Department of Plant and Environmental Sciences, Clemson University, Clemson, SC 29634
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Chatzidimopoulos M, Ganopoulos I, Moraitou-Daponta E, Lioliopoulou F, Ntantali O, Panagiotaki P, Vellios EK. High-Resolution Melting (HRM) Analysis Reveals Genotypic Differentiation of Venturia inaequalis Populations in Greece. Front Ecol Evol 2019. [DOI: 10.3389/fevo.2019.00489] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
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