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First report of Meloidogyne hapla on hemp (Cannabis sativa) in Oregon

Lester Núñez-Rodríguez

Lester Núñez-Rodríguez

Department of Botany and Plant Pathology, Oregon State UniversityCorvallis,
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Núñez-Rodríguez, Lester
, 
Hannah Rivedal

Hannah Rivedal

USDA-ARS Forage Seed and Cereal Research UnitCorvallis,
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Rivedal, Hannah
, 
Amy Peetz

Amy Peetz

USDA-ARS Horticultural Crops Disease and Pest Management Research UnitCorvallis,
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Peetz, Amy
, 
Cynthia M. Ocamb

Cynthia M. Ocamb

Department of Botany and Plant Pathology, Oregon State UniversityCorvallis,
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Ocamb, Cynthia M.
 and 
Inga Zasada

Inga Zasada

USDA-ARS Horticultural Crops Disease and Pest Management Research UnitCorvallis,
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Zasada, Inga
  
Mar 14, 2024
First report of Meloidogyne hapla on hemp (Cannabis sativa) in Oregon's Cover Image
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Article Category: Research Paper
Published Online: Mar 14, 2024
Received: Aug 24, 2023
DOI: https://doi.org/10.2478/jofnem-2024-0008
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© 2024 Lester Núñez-Rodríguez et al., published by Sciendo
This work is licensed under the Creative Commons Attribution 4.0 International License.

Figure 1:

Meloidogyne hapla, A) body length, B) stylet (S) and knobs (Kn), C) and D) tail. Scales: A: 100 μm, B: 20 μm, and C,D: 50 μm.
Meloidogyne hapla, A) body length, B) stylet (S) and knobs (Kn), C) and D) tail. Scales: A: 100 μm, B: 20 μm, and C,D: 50 μm.

Figure 2:

Phylogenetic relationships between Meloidogyne species as inferred from the Bayesian analysis of the mitochondrial DNA CoxII-IGS under the GTR + I + G model. Posterior probabilities of over 50% are given for appropriate clades. Sequences generated in this study are identified in bold. Meloidoyne hapla sequences were retrieved from GenBank, aligned, and trimmed with BioEdit v.7.0.5.3. The best substitution model was determined using jModelTest 2.1.10 v20160303 and the Bayesian analysis was performed using MrBayes v3.2.6. Finally, the tree was visualized using FigTree v1.4.3.
Phylogenetic relationships between Meloidogyne species as inferred from the Bayesian analysis of the mitochondrial DNA CoxII-IGS under the GTR + I + G model. Posterior probabilities of over 50% are given for appropriate clades. Sequences generated in this study are identified in bold. Meloidoyne hapla sequences were retrieved from GenBank, aligned, and trimmed with BioEdit v.7.0.5.3. The best substitution model was determined using jModelTest 2.1.10 v20160303 and the Bayesian analysis was performed using MrBayes v3.2.6. Finally, the tree was visualized using FigTree v1.4.3.
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