Genetic variation in fire recovery and other fire‑related traits in a global eucalypt species
To understand the potential of forests to adapt to wildfire, we studied the genetic architecture of fire-related structural, damage and recovery traits in a globally important Australian forest tree species, Eucalyptus globulus. Fourteen traits were evaluated in an outcrossed F2 population in a fie...
| Autores principales: | , , , , , , |
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| Formato: | info:ar-repo/semantics/artículo |
| Lenguaje: | Inglés |
| Publicado: |
Springer
2023
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| Materias: | |
| Acceso en línea: | http://hdl.handle.net/20.500.12123/14149 https://link.springer.com/article/10.1007/s11295-022-01572-9 https://doi.org/10.1007/s11295-022-01572-9 |
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| author | Hernandez, Mariano Agustín Butler, Jakob B. Ammitzboll, Hans Freeman, Jules S. O’Reilly‑Wapstra, Julianne Vaillancourt, René E. Potts, Brad M. |
| author_browse | Ammitzboll, Hans Butler, Jakob B. Freeman, Jules S. Hernandez, Mariano Agustín O’Reilly‑Wapstra, Julianne Potts, Brad M. Vaillancourt, René E. |
| author_facet | Hernandez, Mariano Agustín Butler, Jakob B. Ammitzboll, Hans Freeman, Jules S. O’Reilly‑Wapstra, Julianne Vaillancourt, René E. Potts, Brad M. |
| author_sort | Hernandez, Mariano Agustín |
| collection | INTA Digital |
| description | To understand the potential of forests to adapt to wildfire, we studied the genetic architecture of fire-related structural, damage and recovery traits in a globally important Australian forest tree species, Eucalyptus globulus. Fourteen traits were evaluated in an outcrossed F2 population in a field trial in Tasmania, Australia, which was burnt by a wildfire 14 years after planting. The trial also included open-pollinated families of the grandparental dwarf and tall ecotypes used to produce the F2 population. We studied the phenotypic correlations within the F2 population and performed quantitative trait loci (QTL) analyses using a linkage map comprised of 472 markers. Ecotype comparisons revealed that almost all traits were under genetic control, with trees of the dwarf ecotype significantly more damaged and mainly recovering from lignotubers, whereas tall ecotype trees mainly recovered from epicormic resprouts extending for a variable height up the stem. Within the F2, tree size was negatively correlated with fire damage and positively correlated with recovery. Genetic control of fire-related traits was confirmed by the detection of 38 QTL in the F2 population. These QTL accounted for 4 to 43% of the phenotypic variation in these traits. Several QTL co-located and likely reflect pleiotropic effects. However, many independent QTL were detected, including QTL for crown consumption and trunk scorch, epicormic resprouting, resprout herbivory, and seedling establishment. The QTL detected argue that many genetically controlled mechanisms are responsible for variation in fire damage and recovery. |
| format | info:ar-repo/semantics/artículo |
| id | INTA14149 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2023 |
| publishDateRange | 2023 |
| publishDateSort | 2023 |
| publisher | Springer |
| publisherStr | Springer |
| record_format | dspace |
| spelling | INTA141492023-03-06T16:59:14Z Genetic variation in fire recovery and other fire‑related traits in a global eucalypt species Hernandez, Mariano Agustín Butler, Jakob B. Ammitzboll, Hans Freeman, Jules S. O’Reilly‑Wapstra, Julianne Vaillancourt, René E. Potts, Brad M. Eucalyptus Variación Genética Incendios Forestales Eucalyptus Globulus Loci de Rasgos Cuantitativos Genetic Variation Forest Fires Quantitative Trait Loci QTL To understand the potential of forests to adapt to wildfire, we studied the genetic architecture of fire-related structural, damage and recovery traits in a globally important Australian forest tree species, Eucalyptus globulus. Fourteen traits were evaluated in an outcrossed F2 population in a field trial in Tasmania, Australia, which was burnt by a wildfire 14 years after planting. The trial also included open-pollinated families of the grandparental dwarf and tall ecotypes used to produce the F2 population. We studied the phenotypic correlations within the F2 population and performed quantitative trait loci (QTL) analyses using a linkage map comprised of 472 markers. Ecotype comparisons revealed that almost all traits were under genetic control, with trees of the dwarf ecotype significantly more damaged and mainly recovering from lignotubers, whereas tall ecotype trees mainly recovered from epicormic resprouts extending for a variable height up the stem. Within the F2, tree size was negatively correlated with fire damage and positively correlated with recovery. Genetic control of fire-related traits was confirmed by the detection of 38 QTL in the F2 population. These QTL accounted for 4 to 43% of the phenotypic variation in these traits. Several QTL co-located and likely reflect pleiotropic effects. However, many independent QTL were detected, including QTL for crown consumption and trunk scorch, epicormic resprouting, resprout herbivory, and seedling establishment. The QTL detected argue that many genetically controlled mechanisms are responsible for variation in fire damage and recovery. EEA Bella Vista Fil: Hernández, Mariano Agustín. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bella Vista; Argentina Fil: Hernández, Mariano Agustín. University of Tasmania. School of Natural Sciences and ARC Training Centre for Forest Value; Australia Fil: Butler, Jacob B. University of Tasmania. School of Natural Sciences and ARC Training Centre for Forest Value; Australia Fil: Ammitzboll, Hans. University of Tasmania. School of Natural Sciences and ARC Training Centre for Forest Value; Australia Fil: Freeman, Jules S. University of Tasmania. School of Natural Sciences and ARC Training Centre for Forest Value; Australia Fil: Freeman, Jules S. Forest Genetics; Nueva Zelanda Fil: O’Reilly‑Wapstra, Julianne. University of Tasmania. School of Natural Sciences and ARC Training Centre for Forest Value; Australia Fil: Vaillancourt, René E. University of Tasmania. School of Natural Sciences and ARC Training Centre for Forest Value; Australia Fil: Potts, Brad M. University of Tasmania. School of Natural Sciences and ARC Training Centre for Forest Value; Australia 2023-03-06T16:48:36Z 2023-03-06T16:48:36Z 2022-11-12 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/14149 https://link.springer.com/article/10.1007/s11295-022-01572-9 1614-2950 https://doi.org/10.1007/s11295-022-01572-9 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 Springer Tree Genetics & Genomes 18 : Article number 42 (november 2022) |
| spellingShingle | Eucalyptus Variación Genética Incendios Forestales Eucalyptus Globulus Loci de Rasgos Cuantitativos Genetic Variation Forest Fires Quantitative Trait Loci QTL Hernandez, Mariano Agustín Butler, Jakob B. Ammitzboll, Hans Freeman, Jules S. O’Reilly‑Wapstra, Julianne Vaillancourt, René E. Potts, Brad M. Genetic variation in fire recovery and other fire‑related traits in a global eucalypt species |
| title | Genetic variation in fire recovery and other fire‑related traits in a global eucalypt species |
| title_full | Genetic variation in fire recovery and other fire‑related traits in a global eucalypt species |
| title_fullStr | Genetic variation in fire recovery and other fire‑related traits in a global eucalypt species |
| title_full_unstemmed | Genetic variation in fire recovery and other fire‑related traits in a global eucalypt species |
| title_short | Genetic variation in fire recovery and other fire‑related traits in a global eucalypt species |
| title_sort | genetic variation in fire recovery and other fire related traits in a global eucalypt species |
| topic | Eucalyptus Variación Genética Incendios Forestales Eucalyptus Globulus Loci de Rasgos Cuantitativos Genetic Variation Forest Fires Quantitative Trait Loci QTL |
| url | http://hdl.handle.net/20.500.12123/14149 https://link.springer.com/article/10.1007/s11295-022-01572-9 https://doi.org/10.1007/s11295-022-01572-9 |
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