Population Genetic Diversity and Structure of Venturia carpophila on Peach and Almond in the United States
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Le résumé fourni par la source
Scab of peach and almond is caused by Venturia carpophila, but little is known regarding the population genetics of the pathogen, which aids in understanding the epidemiology of the disease and guiding its management. Isolates (735) of V. carpophila were sampled from peach and almond orchards in the Eastern United States and California, respectively. The aims were to determine population genetic diversity and structure of V. carpophila, compare populations of the pathogen from each host, and determine mating type ratios. Measures of gene and genotypic diversity indicated greater diversity among peach as compared with almond populations of the pathogen. Mating types were consistently at equilibrium (clone corrected) for populations from peach, but none of the populations from almond were at equilibrium. The MAT1-1-1 idiomorph was at low frequency or absent from almond populations. All populations on both peach and almond exhibited linkage disequilibrium. Analysis of molecular variance showed structure (71.8% of variance at the scale of the tree and 25.3% at the scale of the geographic region or crop). A discriminant analysis of principal components showed that the peach and almond populations clustered as independent groups. The results suggest that on peach in the Southeastern United States, V. carpophila is a sexually reproducing pathogen, but on almond in California, it is likely asexual. The confounded factors of geographic location and crop host may have both contributed to population differentiation. Although more research is needed, these results have implications for our understanding of the disease epidemiology and management in the two regions.
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Le contrôle bibliographique ouvert
DOI retrouvé dans Crossref DOI retrouvé, mais le titre doit être comparé manuellement.
- Titre Crossref
- Population Genetic Diversity and Structure of <i>Venturia carpophila</i> on Peach and Almond in the United States
- Date Crossref
- 01/07/2025
- Éditeur
- Scientific Societies
- Type
- journal-article
Ce recoupement confirme des métadonnées liées au DOI. Il ne confirme ni la méthode ni les conclusions de l’étude, et il ne compte pas comme une seconde source scientifique indépendante.
Où se fait cette recherche
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Agricultural Research Service pays non établi dans la noticeOrganisme public
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Southeastern Fruit and Tree Nut Research Laboratory pays non établi dans la noticeStructure de recherche
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North Carolina State University Department of Entomology and Plant Pathology pays non établi dans la noticeUniversité ou école supérieure
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Noble Research Institute pays non établi dans la noticeOrganisation à but non lucratif
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Clemson University Department of Plant and Environmental Sciences pays non établi dans la noticeUniversité ou école supérieure
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The State University of New Jersey Rutgers pays non établi dans la noticeUniversité ou école supérieure
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Auburn University Chilton Research and Extension Center pays non établi dans la noticeUniversité ou école supérieure
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University of California Department of Microbiology and Plant Pathology pays non établi dans la noticeUniversité ou école supérieure
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University of Georgia Department of Plant Pathology pays non établi dans la noticeUniversité ou école supérieure
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Carnegie Department of Plant Biology pays non établi dans la noticeStructure de recherche
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Plant (United States) pays non établi dans la noticeEntreprise
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USDA ARS USHRL pays non établi dans la noticeInstitution
Agricultural Research Service, Southeastern Fruit and Tree Nut Research Laboratory et Department of Entomology and Plant Pathology — North Carolina State University, avec 9 autres affiliations.
Une affiliation ne permet pas de déduire la nationalité d’un auteur.