Characterization of Components of Resistance to Corn Stunt Disease
Considering the occasional but increasing presence of corn stunt disease in the subtropical region of Argentina, the objective of this research was to devise an effective strategy to screen disease-resistant genotypes in the absence of high and constant natural pressures. To do so, the presence of a...
| Autores principales: | , , , , , |
|---|---|
| Formato: | Artículo |
| Lenguaje: | Inglés |
| Publicado: |
2020
|
| Materias: | |
| Acceso en línea: | http://hdl.handle.net/20.500.12123/7883 https://www.biorxiv.org/content/10.1101/2020.05.28.120972v1 https://doi.org/10.1101/2020.05.28.120972 |
| _version_ | 1855484093281599488 |
|---|---|
| author | Oleszczuk, José D. Catalano, María I. Dalaisón, Lucía Di Rienzo, Julio A. Gimenez, Maria De La Paz Carpane, Pablo D. |
| author_browse | Carpane, Pablo D. Catalano, María I. Dalaisón, Lucía Di Rienzo, Julio A. Gimenez, Maria De La Paz Oleszczuk, José D. |
| author_facet | Oleszczuk, José D. Catalano, María I. Dalaisón, Lucía Di Rienzo, Julio A. Gimenez, Maria De La Paz Carpane, Pablo D. |
| author_sort | Oleszczuk, José D. |
| collection | INTA Digital |
| description | Considering the occasional but increasing presence of corn stunt disease in the subtropical region of Argentina, the objective of this research was to devise an effective strategy to screen disease-resistant genotypes in the absence of high and constant natural pressures. To do so, the presence of antixenosis and antibiosis as components of resistance to vector Dalbulus maidis (DeLong 1923) as well as resistance to the pathogen Spiroplasma kunkelii (Whitcomb et al. 1986) under artificial inoculation conditions were investigated in four widely-distributed maize hybrids in Argentina. The hybrids shown differences in the levels of resistance and target organisms (either the insect vector or the pathogen). Antixenosis and antibiosis to D. maidis were observed in DK72-10. Resistance of DK79-10 to S. kunkelii was evidenced by a delayed onset of symptoms, and DKB390 was antixenotic to D. maidis and highly resistant to S. kunkelii. A good association was found between symptom severity and yield, but not between symptom severity and accumulation of pathogen S. kunkelii. In conclusion, the proposed methodology was efficacious and can aid the screening of resistant genotypes in breeding programs to reduce the impact of corn stunt disease, ensuring that hybrids with good resistance level will be planted by farmers whenever disease occurs. |
| format | Artículo |
| id | INTA7883 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2020 |
| publishDateRange | 2020 |
| publishDateSort | 2020 |
| record_format | dspace |
| spelling | INTA78832020-09-14T12:34:32Z Characterization of Components of Resistance to Corn Stunt Disease Oleszczuk, José D. Catalano, María I. Dalaisón, Lucía Di Rienzo, Julio A. Gimenez, Maria De La Paz Carpane, Pablo D. Maize Spiroplasma Disease Resistance Dalbulus Maidis Maíz Resistencia a la Enfermedad Corn Stunt Spiroplasma Kunkelii Considering the occasional but increasing presence of corn stunt disease in the subtropical region of Argentina, the objective of this research was to devise an effective strategy to screen disease-resistant genotypes in the absence of high and constant natural pressures. To do so, the presence of antixenosis and antibiosis as components of resistance to vector Dalbulus maidis (DeLong 1923) as well as resistance to the pathogen Spiroplasma kunkelii (Whitcomb et al. 1986) under artificial inoculation conditions were investigated in four widely-distributed maize hybrids in Argentina. The hybrids shown differences in the levels of resistance and target organisms (either the insect vector or the pathogen). Antixenosis and antibiosis to D. maidis were observed in DK72-10. Resistance of DK79-10 to S. kunkelii was evidenced by a delayed onset of symptoms, and DKB390 was antixenotic to D. maidis and highly resistant to S. kunkelii. A good association was found between symptom severity and yield, but not between symptom severity and accumulation of pathogen S. kunkelii. In conclusion, the proposed methodology was efficacious and can aid the screening of resistant genotypes in breeding programs to reduce the impact of corn stunt disease, ensuring that hybrids with good resistance level will be planted by farmers whenever disease occurs. Instituto de Patología Vegetal Fil: Oleszczuk, José D. Bayer Argentina; Argentina. Fil: Catalano, María I. Centro de Investigaciones en Biología (CEBIO); Argentina Fil: Dalaisón, Lucía. Centro de Investigaciones en Biología (CEBIO); Argentina Fil: Di Rienzo, Julio A. Universidad Nacional de Córdoba. Facultad de Ciencias Agropecuarias. Cátedra de Estadística y Biometría; Argentina Fil: Giménez, Maria de la Paz. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Patología Vegetal; Argentina Fil: Carpane, Pablo D. Bayer Argentina; Argentina 2020-09-14T12:12:18Z 2020-09-14T12:12:18Z 2020-05-28 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion http://hdl.handle.net/20.500.12123/7883 https://www.biorxiv.org/content/10.1101/2020.05.28.120972v1 1932-6203 (online) https://doi.org/10.1101/2020.05.28.120972 eng info:eu-repo/semantics/restrictedAccess application/pdf Plant Disease (2020) |
| spellingShingle | Maize Spiroplasma Disease Resistance Dalbulus Maidis Maíz Resistencia a la Enfermedad Corn Stunt Spiroplasma Kunkelii Oleszczuk, José D. Catalano, María I. Dalaisón, Lucía Di Rienzo, Julio A. Gimenez, Maria De La Paz Carpane, Pablo D. Characterization of Components of Resistance to Corn Stunt Disease |
| title | Characterization of Components of Resistance to Corn Stunt Disease |
| title_full | Characterization of Components of Resistance to Corn Stunt Disease |
| title_fullStr | Characterization of Components of Resistance to Corn Stunt Disease |
| title_full_unstemmed | Characterization of Components of Resistance to Corn Stunt Disease |
| title_short | Characterization of Components of Resistance to Corn Stunt Disease |
| title_sort | characterization of components of resistance to corn stunt disease |
| topic | Maize Spiroplasma Disease Resistance Dalbulus Maidis Maíz Resistencia a la Enfermedad Corn Stunt Spiroplasma Kunkelii |
| url | http://hdl.handle.net/20.500.12123/7883 https://www.biorxiv.org/content/10.1101/2020.05.28.120972v1 https://doi.org/10.1101/2020.05.28.120972 |
| work_keys_str_mv | AT oleszczukjosed characterizationofcomponentsofresistancetocornstuntdisease AT catalanomariai characterizationofcomponentsofresistancetocornstuntdisease AT dalaisonlucia characterizationofcomponentsofresistancetocornstuntdisease AT dirienzojulioa characterizationofcomponentsofresistancetocornstuntdisease AT gimenezmariadelapaz characterizationofcomponentsofresistancetocornstuntdisease AT carpanepablod characterizationofcomponentsofresistancetocornstuntdisease |