Spike architecture traits associated with type II resistance to fusarium head blight in bread wheat
Fusarium head blight (FHB) remains a devastating disease in bread wheat (Triticum aestivum L.). Genetic resistance to FHB is complex; aside from active physiological resistance, plant developmental and morphological traits indirectly affect disease progression and provide a passive resistance mechan...
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| Format: | info:ar-repo/semantics/artículo |
| Language: | Inglés |
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Springer
2022
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| Online Access: | http://hdl.handle.net/20.500.12123/11765 https://link.springer.com/article/10.1007/s10681-021-02936-3 https://doi.org/10.1007/s10681-021-02936-3 |
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| author | Franco, Maria Fiorella Lori, G. Cendoya, Maria Gabriela Alonso, Maria Pía Panelo, Juan Sebastián Malbrán, I. Mirabella, Nadia Estefania Pontaroli, Ana Clara |
| author_browse | Alonso, Maria Pía Cendoya, Maria Gabriela Franco, Maria Fiorella Lori, G. Malbrán, I. Mirabella, Nadia Estefania Panelo, Juan Sebastián Pontaroli, Ana Clara |
| author_facet | Franco, Maria Fiorella Lori, G. Cendoya, Maria Gabriela Alonso, Maria Pía Panelo, Juan Sebastián Malbrán, I. Mirabella, Nadia Estefania Pontaroli, Ana Clara |
| author_sort | Franco, Maria Fiorella |
| collection | INTA Digital |
| description | Fusarium head blight (FHB) remains a devastating disease in bread wheat (Triticum aestivum L.). Genetic resistance to FHB is complex; aside from active physiological resistance, plant developmental and morphological traits indirectly affect disease progression and provide a passive resistance mechanism. Here, the relationship between FHB Type II resistance and spike architecture traits was evaluated in a recombinant inbred line (RIL) population of bread wheat in field experiments during two crop seasons under a completely randomized block design with two replications. Point inoculation was carried out at anthesis of each RIL. Disease severity at 21 days post inoculation (dpi), area under the disease progress curve (AUDPC) comprising severity measurements at 12, 17 and 21 dpi, rachis length, spike density, number of spikelets per spike, number of florets per spike and number of florets per spikelet were determined. The population showed significant variation for all traits. Heritability was moderate-high for FHB severity (0.69) and AUDPC (0.63) and high for spike architecture traits (0.74–0.92). FHB severity at 21 dpi and AUDPC were significantly associated with number of florets per spike [r = 0.38 (P < 0.001) and r = 0.31 (P < 0.01) respectively] and with the number of florets per spikelet [r = 0.28 (P < 0.01) and r = 0.27 (P < 0.05) respectively], reflecting a greater spread of the fungus in spikes with higher floret number. These results suggest that the number of florets per spike and per spikelet should be considered in FHB resistance breeding efforts, because selection of lines with higher number of florets could lead to a correlated selection response towards increased FHB levels under field conditions. |
| format | info:ar-repo/semantics/artículo |
| id | INTA11765 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2022 |
| publishDateRange | 2022 |
| publishDateSort | 2022 |
| publisher | Springer |
| publisherStr | Springer |
| record_format | dspace |
| spelling | INTA117652022-04-29T10:07:05Z Spike architecture traits associated with type II resistance to fusarium head blight in bread wheat Franco, Maria Fiorella Lori, G. Cendoya, Maria Gabriela Alonso, Maria Pía Panelo, Juan Sebastián Malbrán, I. Mirabella, Nadia Estefania Pontaroli, Ana Clara Triticum Aestivum Trigo Harinero Espigas Gibberella Zeae Inflorescencias Tizón Enfermedades de las Plantas Soft Wheat Spikes Inflorescences Blight Plant Diseases Fusarium head blight (FHB) remains a devastating disease in bread wheat (Triticum aestivum L.). Genetic resistance to FHB is complex; aside from active physiological resistance, plant developmental and morphological traits indirectly affect disease progression and provide a passive resistance mechanism. Here, the relationship between FHB Type II resistance and spike architecture traits was evaluated in a recombinant inbred line (RIL) population of bread wheat in field experiments during two crop seasons under a completely randomized block design with two replications. Point inoculation was carried out at anthesis of each RIL. Disease severity at 21 days post inoculation (dpi), area under the disease progress curve (AUDPC) comprising severity measurements at 12, 17 and 21 dpi, rachis length, spike density, number of spikelets per spike, number of florets per spike and number of florets per spikelet were determined. The population showed significant variation for all traits. Heritability was moderate-high for FHB severity (0.69) and AUDPC (0.63) and high for spike architecture traits (0.74–0.92). FHB severity at 21 dpi and AUDPC were significantly associated with number of florets per spike [r = 0.38 (P < 0.001) and r = 0.31 (P < 0.01) respectively] and with the number of florets per spikelet [r = 0.28 (P < 0.01) and r = 0.27 (P < 0.05) respectively], reflecting a greater spread of the fungus in spikes with higher floret number. These results suggest that the number of florets per spike and per spikelet should be considered in FHB resistance breeding efforts, because selection of lines with higher number of florets could lead to a correlated selection response towards increased FHB levels under field conditions. EEA Balcarce Fil: Franco, María Fiorella. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce. Unidad Integrada Balcarce. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; Argentina. Fil: Franco, María Fiorella. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Fil: Lori, G. Comisión de Investigaciones Científicas de la Provincia de Buenos Aires; Argentina. Fil: Lori, G. Universidad Nacional de La Plata. Facultad de Ciencias Agrarias y Forestales; Argentina. Fil: Cendoya, María Gabriela. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce. Unidad Integrada Balcarce. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; Argentina. Fil: Alonso, María Pía. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce. Unidad Integrada Balcarce. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; Argentina. Fil: Alonso, María Pía. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Fil: Panelo, Juan Sebastián. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce. Unidad Integrada Balcarce. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; Argentina. Fil: Panelo, Juan Sebastián. Comisión de Investigaciones Científicas de la Provincia de Buenos Aires; Argentina. Fil: Malbrán, I. Comisión de Investigaciones Científicas de la Provincia de Buenos Aires; Argentina. Fil: Malbrán, I. Universidad Nacional de La Plata. Facultad de Ciencias Agrarias y Forestales; Argentina. Fil: Mirabella. Nadia Estefania. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce. Unidad Integrada Balcarce. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; Argentina. Fil: Pontaroli, Ana Clara. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce. Unidad Integrada Balcarce. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; Argentina. Fil: Pontaroli, Ana Clara. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. 2022-04-29T10:02:21Z 2022-04-29T10:02:21Z 2021-11-05 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/11765 https://link.springer.com/article/10.1007/s10681-021-02936-3 1573-5060 (online) 0014-2336 (print) https://doi.org/10.1007/s10681-021-02936-3 eng info:eu-repograntAgreement/INTA/PNCYO-1127044/AR./-Desarrollo de germoplasma y cultivares comerciales de cereales de invierno info:eu-repo/semantics/restrictedAccess application/pdf Springer Euphytica 217 : 209 (noviembre 2021) |
| spellingShingle | Triticum Aestivum Trigo Harinero Espigas Gibberella Zeae Inflorescencias Tizón Enfermedades de las Plantas Soft Wheat Spikes Inflorescences Blight Plant Diseases Franco, Maria Fiorella Lori, G. Cendoya, Maria Gabriela Alonso, Maria Pía Panelo, Juan Sebastián Malbrán, I. Mirabella, Nadia Estefania Pontaroli, Ana Clara Spike architecture traits associated with type II resistance to fusarium head blight in bread wheat |
| title | Spike architecture traits associated with type II resistance to fusarium head blight in bread wheat |
| title_full | Spike architecture traits associated with type II resistance to fusarium head blight in bread wheat |
| title_fullStr | Spike architecture traits associated with type II resistance to fusarium head blight in bread wheat |
| title_full_unstemmed | Spike architecture traits associated with type II resistance to fusarium head blight in bread wheat |
| title_short | Spike architecture traits associated with type II resistance to fusarium head blight in bread wheat |
| title_sort | spike architecture traits associated with type ii resistance to fusarium head blight in bread wheat |
| topic | Triticum Aestivum Trigo Harinero Espigas Gibberella Zeae Inflorescencias Tizón Enfermedades de las Plantas Soft Wheat Spikes Inflorescences Blight Plant Diseases |
| url | http://hdl.handle.net/20.500.12123/11765 https://link.springer.com/article/10.1007/s10681-021-02936-3 https://doi.org/10.1007/s10681-021-02936-3 |
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