Population genetic characteristics and mating type frequency of Venturia effusa from Pecan in South America
Scab, caused by the plant-pathogenic fungus Venturia effusa, is a major disease of pecan in South America, resulting in loss of quantity and quality of nut yield. Characteristics of the populations of V. effusa in South America are unknown. We used microsatellites to describe the genetic diversity a...
| Main Authors: | , , , , , , , |
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| Format: | Artículo |
| Language: | Inglés |
| Published: |
American Phytopathological Society
2024
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| Subjects: | |
| Online Access: | http://hdl.handle.net/20.500.12123/17727 https://apsjournals.apsnet.org/doi/full/10.1094/PHYTO-01-22-0031-R https://doi.org/10.1094/PHYTO-01-22-0031-R |
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| author | Bock, Clive H. Frusso, Enrique Alberto Zoppolo, Roberto Ortiz, Edson R. Shiller, Jason Charlton, Nikki D. Young, Carolyn Randall, Jennifer J. |
| author_browse | Bock, Clive H. Charlton, Nikki D. Frusso, Enrique Alberto Ortiz, Edson R. Randall, Jennifer J. Shiller, Jason Young, Carolyn Zoppolo, Roberto |
| author_facet | Bock, Clive H. Frusso, Enrique Alberto Zoppolo, Roberto Ortiz, Edson R. Shiller, Jason Charlton, Nikki D. Young, Carolyn Randall, Jennifer J. |
| author_sort | Bock, Clive H. |
| collection | INTA Digital |
| description | Scab, caused by the plant-pathogenic fungus Venturia effusa, is a major disease of pecan in South America, resulting in loss of quantity and quality of nut yield. Characteristics of the populations of V. effusa in South America are unknown. We used microsatellites to describe the genetic diversity and population structure of V. effusa in South America, and determined the mating type status of the pathogen. The four hierarchically sampled orchard populations from Argentina (AR), Brazil (BRC and BRS), and Uruguay (UR) had moderate to high genotypic and gene diversity. There was evidence of population differentiation (Fst = 0.196) but the correlation between geographic distance and genetic distance was not statistically significant. Genetic differentiation was minimal between the UR, BRC, and BRS populations, and these populations were more clearly differentiated from the AR population. The MAT1-1 and MAT1-2 mating types occurred in all four orchards and their frequencies did not deviate from the 1:1 ratio expected under random mating; however, multilocus linkage equilibrium was rejected in three of the four populations. The population genetics of South American populations of V. effusa has many similarities to the population genetics of V. effusa previously described in the United States. Characterizing the populations genetics and reproductive systems of V. effusa are important to establish the evolutionary potential of the pathogen and, thus, its adaptability—and can provide a basis for informed approaches to utilizing available host resistance and determining phytosanitary needs. |
| format | Artículo |
| id | INTA17727 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2024 |
| publishDateRange | 2024 |
| publishDateSort | 2024 |
| publisher | American Phytopathological Society |
| publisherStr | American Phytopathological Society |
| record_format | dspace |
| spelling | INTA177272024-05-14T17:21:04Z Population genetic characteristics and mating type frequency of Venturia effusa from Pecan in South America Bock, Clive H. Frusso, Enrique Alberto Zoppolo, Roberto Ortiz, Edson R. Shiller, Jason Charlton, Nikki D. Young, Carolyn Randall, Jennifer J. Ascomycota Variación Genética Genética de Poblaciones Genetic Variation Population Genetics Venturia (fungus) Pecans Venturia (hongo) Pacana Exotic Pathogen Mating Type Patógeno Exótico Tipo de Apareamiento Venturia effusa Nuez Pecán Scab, caused by the plant-pathogenic fungus Venturia effusa, is a major disease of pecan in South America, resulting in loss of quantity and quality of nut yield. Characteristics of the populations of V. effusa in South America are unknown. We used microsatellites to describe the genetic diversity and population structure of V. effusa in South America, and determined the mating type status of the pathogen. The four hierarchically sampled orchard populations from Argentina (AR), Brazil (BRC and BRS), and Uruguay (UR) had moderate to high genotypic and gene diversity. There was evidence of population differentiation (Fst = 0.196) but the correlation between geographic distance and genetic distance was not statistically significant. Genetic differentiation was minimal between the UR, BRC, and BRS populations, and these populations were more clearly differentiated from the AR population. The MAT1-1 and MAT1-2 mating types occurred in all four orchards and their frequencies did not deviate from the 1:1 ratio expected under random mating; however, multilocus linkage equilibrium was rejected in three of the four populations. The population genetics of South American populations of V. effusa has many similarities to the population genetics of V. effusa previously described in the United States. Characterizing the populations genetics and reproductive systems of V. effusa are important to establish the evolutionary potential of the pathogen and, thus, its adaptability—and can provide a basis for informed approaches to utilizing available host resistance and determining phytosanitary needs. Instituto de Recursos Biológicos Fil: Bock, Clive H. United States Department of Agriculture–Agriculture Research Service. Southeastern Fruit and Tree Nut Research Lab; Estados Unidos Fil: Frusso, Enrique. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Recursos Biológicos; Argentina Fil: Zoppolo, Roberto. Instituto Nacional de Investigación Agropecuaria – INIA Las Brujas; Uruguay Fil: Ortiz, Edson R. Divinut Indústria de Nozes Ltda; Brasil Fil: Shiller, Jason. Scion; Nueva Zelandia Fil: Charlton, Nikki D. Noble Research Institute; Estados Unidos Fil: Young, Carolyn. Noble Research Institute; Estados Unidos Fil: Randall, Jennifer J. New Mexico State University; Estados Unidos 2024-05-14T17:07:39Z 2024-05-14T17:07:39Z 2022-09-22 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/17727 https://apsjournals.apsnet.org/doi/full/10.1094/PHYTO-01-22-0031-R 0031-949X 1943-7684 https://doi.org/10.1094/PHYTO-01-22-0031-R eng info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf American Phytopathological Society Phytopatology 112 (10) : 2224-2235. (October 2022) |
| spellingShingle | Ascomycota Variación Genética Genética de Poblaciones Genetic Variation Population Genetics Venturia (fungus) Pecans Venturia (hongo) Pacana Exotic Pathogen Mating Type Patógeno Exótico Tipo de Apareamiento Venturia effusa Nuez Pecán Bock, Clive H. Frusso, Enrique Alberto Zoppolo, Roberto Ortiz, Edson R. Shiller, Jason Charlton, Nikki D. Young, Carolyn Randall, Jennifer J. Population genetic characteristics and mating type frequency of Venturia effusa from Pecan in South America |
| title | Population genetic characteristics and mating type frequency of Venturia effusa from Pecan in South America |
| title_full | Population genetic characteristics and mating type frequency of Venturia effusa from Pecan in South America |
| title_fullStr | Population genetic characteristics and mating type frequency of Venturia effusa from Pecan in South America |
| title_full_unstemmed | Population genetic characteristics and mating type frequency of Venturia effusa from Pecan in South America |
| title_short | Population genetic characteristics and mating type frequency of Venturia effusa from Pecan in South America |
| title_sort | population genetic characteristics and mating type frequency of venturia effusa from pecan in south america |
| topic | Ascomycota Variación Genética Genética de Poblaciones Genetic Variation Population Genetics Venturia (fungus) Pecans Venturia (hongo) Pacana Exotic Pathogen Mating Type Patógeno Exótico Tipo de Apareamiento Venturia effusa Nuez Pecán |
| url | http://hdl.handle.net/20.500.12123/17727 https://apsjournals.apsnet.org/doi/full/10.1094/PHYTO-01-22-0031-R https://doi.org/10.1094/PHYTO-01-22-0031-R |
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