Megachile rotundata (Fab.) as a potential agro-environmental conservation strategy for alfalfa seed production in Argentina
Alfalfa (Medicago sativa L. 1753) is one of the main forage crops of the world, and the availability of an adequate seed supply to farmers is one of the main concerns for the seed industry. The international alfalfa seed trade is widespread and several countries depend on imported seed. The continue...
| Autores principales: | , , , , , |
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| Formato: | Artículo |
| Lenguaje: | Inglés |
| Publicado: |
Wiley
2021
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| Materias: | |
| Acceso en línea: | http://hdl.handle.net/20.500.12123/10853 https://onlinelibrary.wiley.com/doi/abs/10.1111/jen.12953 https://doi.org/10.1111/jen.12953 |
| _version_ | 1855484669118644224 |
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| author | Renzi Pugni, Juan Pablo Coito, Carlos Reinoso, Omar Juan Quintana, Matias Garcia, Flavia Carina Cantamutto, Miguel Angel |
| author_browse | Cantamutto, Miguel Angel Coito, Carlos Garcia, Flavia Carina Quintana, Matias Reinoso, Omar Juan Renzi Pugni, Juan Pablo |
| author_facet | Renzi Pugni, Juan Pablo Coito, Carlos Reinoso, Omar Juan Quintana, Matias Garcia, Flavia Carina Cantamutto, Miguel Angel |
| author_sort | Renzi Pugni, Juan Pablo |
| collection | INTA Digital |
| description | Alfalfa (Medicago sativa L. 1753) is one of the main forage crops of the world, and the availability of an adequate seed supply to farmers is one of the main concerns for the seed industry. The international alfalfa seed trade is widespread and several countries depend on imported seed. The continued importation of alfalfa seed carries a serious risk of unintentional introductions, such as contamination by genetically engineered (GE) alfalfa. We evaluated: (i) GE contamination in the main alfalfa seed production area of Argentina by analysing 263 conventional bulk seed lots (~900 tonnes) and feral populations (n = 49) over a 5-year period (2016–2021); and (ii) the location of alfalfa fields near natural vegetation formations as a pollination management strategy to increase the local seed production. Although GE alfalfa seed fields are prohibited, contamination was present in commercial seed lots (5.58% to 23.25%) and in feral alfalfa populations (8.16%). We did not observe an increase in the alfalfa seed yield in fields pollinated with honey bees (HB, Apis mellifera L., 1758) or located near natural vegetation formations when compared to fields pollinated by the alfalfa leafcutting bee (ALCB, Megachile rotundata Fabricius, 1793). In this study, use of the specialized pollinator ALCB was two to four times more effective than HB in terms of seed yield. Therefore, ALCB can reduce the risks of GE contamination by increasing the alfalfa yield in Argentina, which may then lead to a decrease in imported seed containing the potential contaminants. In addition, due to its specificity and small radial action, the ALCB could also drastically limit unintentional transgene diffusion. The reduction of seed importation will decrease the risk of worse biological or transgenic introductions of contaminants into national agroecosystems. Therefore, the use of ALCB as an input becomes a priority until new management practices are developed and adopted. |
| format | Artículo |
| id | INTA10853 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2021 |
| publishDateRange | 2021 |
| publishDateSort | 2021 |
| publisher | Wiley |
| publisherStr | Wiley |
| record_format | dspace |
| spelling | INTA108532021-12-06T12:37:35Z Megachile rotundata (Fab.) as a potential agro-environmental conservation strategy for alfalfa seed production in Argentina Renzi Pugni, Juan Pablo Coito, Carlos Reinoso, Omar Juan Quintana, Matias Garcia, Flavia Carina Cantamutto, Miguel Angel Megachile rotundata Medicago sativa Agroecosistemas Medio Ambiente Insectos Utiles Apidae Agroecosystems Environment Useful Insects Argentina Alfalfa Lucerne Alfalfa (Medicago sativa L. 1753) is one of the main forage crops of the world, and the availability of an adequate seed supply to farmers is one of the main concerns for the seed industry. The international alfalfa seed trade is widespread and several countries depend on imported seed. The continued importation of alfalfa seed carries a serious risk of unintentional introductions, such as contamination by genetically engineered (GE) alfalfa. We evaluated: (i) GE contamination in the main alfalfa seed production area of Argentina by analysing 263 conventional bulk seed lots (~900 tonnes) and feral populations (n = 49) over a 5-year period (2016–2021); and (ii) the location of alfalfa fields near natural vegetation formations as a pollination management strategy to increase the local seed production. Although GE alfalfa seed fields are prohibited, contamination was present in commercial seed lots (5.58% to 23.25%) and in feral alfalfa populations (8.16%). We did not observe an increase in the alfalfa seed yield in fields pollinated with honey bees (HB, Apis mellifera L., 1758) or located near natural vegetation formations when compared to fields pollinated by the alfalfa leafcutting bee (ALCB, Megachile rotundata Fabricius, 1793). In this study, use of the specialized pollinator ALCB was two to four times more effective than HB in terms of seed yield. Therefore, ALCB can reduce the risks of GE contamination by increasing the alfalfa yield in Argentina, which may then lead to a decrease in imported seed containing the potential contaminants. In addition, due to its specificity and small radial action, the ALCB could also drastically limit unintentional transgene diffusion. The reduction of seed importation will decrease the risk of worse biological or transgenic introductions of contaminants into national agroecosystems. Therefore, the use of ALCB as an input becomes a priority until new management practices are developed and adopted. EEA Hilario Ascasubi Fil: Renzi Pugni, Juan Pablo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Hilario Ascasubi; Argentina Fil: Renzi Pugni, Juan Pablo. Universidad Nacional del Sur. Departamento de Agronomía; Argentina Fil: Coito, Carlos. Southern Seeds S.A.; Argentina Fil: Reinoso, Omar Juan. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Hilario Ascasubi; Argentina Fil: Quintana, Matias. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Hilario Ascasubi; Argentina Fil: Garcia, Flavia Carina. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Hilario Ascasubi; Argentina Fil: Cantamutto, Miguel Angel. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Hilario Ascasubi; Argentina. Fil: Cantamutto, Miguel Angel. Universidad Nacional del Sur. Departamento de Agronomía; Argentina Fil: Cantamutto, Miguel Angel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Centro de Recursos Naturales Renovables de la Zona Semiarida; Argentina Fil: Cantamutto, Miguel Angel. Universidad Nacional del Sur. Centro de Recursos Naturales Renovables de la Zona Semiarida; Argentina 2021-12-06T12:33:05Z 2021-12-06T12:33:05Z 2021-11 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/10853 https://onlinelibrary.wiley.com/doi/abs/10.1111/jen.12953 1439-0418 https://doi.org/10.1111/jen.12953 eng info:eu-repograntAgreement/INTA/2019-PE-E6-I142-001/2019-PE-E6-I142-001/AR./Mejoramiento genético de leguminosas y gramíneas forrajeras para incrementar la productividad y la sustentabilidad de los sistemas agropecuarios de la Argentina info:eu-repograntAgreement/INTA/2019-PE-E4-I086-001/2019-PE-E4-I086-001/AR./Monitoreo, caracterización y manejo de plagas resistentes a fitosanitarios y organismos geneticamente modificados info:eu-repograntAgreement/INTA/2019-7282.PL342-001/2019-7282.PL342-001/AR./Zona diferencial norpatagónica para la producción de alfalfa no transgénica info:eu-repo/semantics/restrictedAccess application/pdf Argentina .......... (nation) (World, South America) 7006477 Wiley Journal of Applied Entomology (First published: 24 November 2021) |
| spellingShingle | Megachile rotundata Medicago sativa Agroecosistemas Medio Ambiente Insectos Utiles Apidae Agroecosystems Environment Useful Insects Argentina Alfalfa Lucerne Renzi Pugni, Juan Pablo Coito, Carlos Reinoso, Omar Juan Quintana, Matias Garcia, Flavia Carina Cantamutto, Miguel Angel Megachile rotundata (Fab.) as a potential agro-environmental conservation strategy for alfalfa seed production in Argentina |
| title | Megachile rotundata (Fab.) as a potential agro-environmental conservation strategy for alfalfa seed production in Argentina |
| title_full | Megachile rotundata (Fab.) as a potential agro-environmental conservation strategy for alfalfa seed production in Argentina |
| title_fullStr | Megachile rotundata (Fab.) as a potential agro-environmental conservation strategy for alfalfa seed production in Argentina |
| title_full_unstemmed | Megachile rotundata (Fab.) as a potential agro-environmental conservation strategy for alfalfa seed production in Argentina |
| title_short | Megachile rotundata (Fab.) as a potential agro-environmental conservation strategy for alfalfa seed production in Argentina |
| title_sort | megachile rotundata fab as a potential agro environmental conservation strategy for alfalfa seed production in argentina |
| topic | Megachile rotundata Medicago sativa Agroecosistemas Medio Ambiente Insectos Utiles Apidae Agroecosystems Environment Useful Insects Argentina Alfalfa Lucerne |
| url | http://hdl.handle.net/20.500.12123/10853 https://onlinelibrary.wiley.com/doi/abs/10.1111/jen.12953 https://doi.org/10.1111/jen.12953 |
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