Genetic variability of Araucaria angustifolia in the Argentinean Parana Forest and implications for management and conservation
The main forces shaping genetic variability of woody species in fragmented forest are the geographical distribution and demographic history of populations. We conducted molecular analyses to evaluate how these factors have affected Araucaria angustifolia genetic variability in the Argentinean Parana...
| Autores principales: | , , , , , , |
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| Formato: | Artículo |
| Lenguaje: | Inglés |
| Publicado: |
2018
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| Acceso en línea: | https://link.springer.com/article/10.1007/s00468-018-1701-4 http://hdl.handle.net/20.500.12123/3190 https://doi.org/10.1007/s00468-018-1701-4 |
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| author | Inza, Maria Virginia Aguirre, Natalia Cristina Torales, Susana Leonor Pahr, Norberto Manuel Fassola, Hugo Enrique Fornes, Luis Fernando Zelener, Noga |
| author_browse | Aguirre, Natalia Cristina Fassola, Hugo Enrique Fornes, Luis Fernando Inza, Maria Virginia Pahr, Norberto Manuel Torales, Susana Leonor Zelener, Noga |
| author_facet | Inza, Maria Virginia Aguirre, Natalia Cristina Torales, Susana Leonor Pahr, Norberto Manuel Fassola, Hugo Enrique Fornes, Luis Fernando Zelener, Noga |
| author_sort | Inza, Maria Virginia |
| collection | INTA Digital |
| description | The main forces shaping genetic variability of woody species in fragmented forest are the geographical distribution and demographic history of populations. We conducted molecular analyses to evaluate how these factors have affected Araucaria angustifolia genetic variability in the Argentinean Parana Forest and to identify valuable gene pools for conservation and management purposes. Using 706 polymorphic AFLP (Amplified Fragment Length Polymorphism) markers, we analyzed nine native populations with different logging history and one plantation (312 individuals) of an uncertain origin. Average genetic diversity for the native populations was moderate-to-low (He = 0.128) in accordance with their marginal location within Araucaria’s range. In general, genetic diversity of populations decreases from east to west with increasing distances from the main area of species distribution on southern Brazil. Logging may have been responsible for further reduction of genetic variability in the more intensely exploited populations of the southern region and in some private fields. The moderate genetic differentiation among populations (ΦPT = 0.080) suggests an increase in the genetic structure of remnant populations because of fragmentation. UPGMA and Bayesian analyses agreed with the geographic location of populations. Populations from the southern Provincial Parks at Araucaria’s range edges grouped and differed genetically more from other populations. The highest genetic diversity of the plantation (He = 0.155) suggests that its individuals could have originated from seeds collected from different and/or highly variable sources of Brazil and the northeast of Argentina. |
| format | Artículo |
| id | INTA3190 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2018 |
| publishDateRange | 2018 |
| publishDateSort | 2018 |
| record_format | dspace |
| spelling | INTA31902018-08-27T13:35:54Z Genetic variability of Araucaria angustifolia in the Argentinean Parana Forest and implications for management and conservation Inza, Maria Virginia Aguirre, Natalia Cristina Torales, Susana Leonor Pahr, Norberto Manuel Fassola, Hugo Enrique Fornes, Luis Fernando Zelener, Noga Araucaria Angustifolia Variación Genética Marcadores Genéticos Distribución Geográfica Genetic Variation Genetic Markers Geographical Distribution Bosque del Paraná Marcadores Moleculares The main forces shaping genetic variability of woody species in fragmented forest are the geographical distribution and demographic history of populations. We conducted molecular analyses to evaluate how these factors have affected Araucaria angustifolia genetic variability in the Argentinean Parana Forest and to identify valuable gene pools for conservation and management purposes. Using 706 polymorphic AFLP (Amplified Fragment Length Polymorphism) markers, we analyzed nine native populations with different logging history and one plantation (312 individuals) of an uncertain origin. Average genetic diversity for the native populations was moderate-to-low (He = 0.128) in accordance with their marginal location within Araucaria’s range. In general, genetic diversity of populations decreases from east to west with increasing distances from the main area of species distribution on southern Brazil. Logging may have been responsible for further reduction of genetic variability in the more intensely exploited populations of the southern region and in some private fields. The moderate genetic differentiation among populations (ΦPT = 0.080) suggests an increase in the genetic structure of remnant populations because of fragmentation. UPGMA and Bayesian analyses agreed with the geographic location of populations. Populations from the southern Provincial Parks at Araucaria’s range edges grouped and differed genetically more from other populations. The highest genetic diversity of the plantation (He = 0.155) suggests that its individuals could have originated from seeds collected from different and/or highly variable sources of Brazil and the northeast of Argentina. Instituto de Recursos Biológicos Fil: Inza, Maria Virginia. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Recursos Biológicos; Argentina Fil: Aguirre, Natalia Cristina. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Biotecnología; Argentina Fil: Torales, Susana Leonor. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Recursos Biológicos; Argentina Fil: Pahr, Norberto Manuel. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Montecarlo; Argentina Fil: Fassola, Hugo Enrique. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Montecarlo; Argentina Fil: Fornes, Luis Fernando. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Famaillá; Argentina Fil: Zelener, Noga. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Recursos Biológicos; Argentina 2018-08-27T13:33:45Z 2018-08-27T13:33:45Z 2018-08 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion https://link.springer.com/article/10.1007/s00468-018-1701-4 http://hdl.handle.net/20.500.12123/3190 0931-1890 1432-2285 https://doi.org/10.1007/s00468-018-1701-4 eng info:eu-repo/semantics/restrictedAccess application/pdf Trees : Structure and Function 32 (4) : 1135–1146 (August 2018) |
| spellingShingle | Araucaria Angustifolia Variación Genética Marcadores Genéticos Distribución Geográfica Genetic Variation Genetic Markers Geographical Distribution Bosque del Paraná Marcadores Moleculares Inza, Maria Virginia Aguirre, Natalia Cristina Torales, Susana Leonor Pahr, Norberto Manuel Fassola, Hugo Enrique Fornes, Luis Fernando Zelener, Noga Genetic variability of Araucaria angustifolia in the Argentinean Parana Forest and implications for management and conservation |
| title | Genetic variability of Araucaria angustifolia in the Argentinean Parana Forest and implications for management and conservation |
| title_full | Genetic variability of Araucaria angustifolia in the Argentinean Parana Forest and implications for management and conservation |
| title_fullStr | Genetic variability of Araucaria angustifolia in the Argentinean Parana Forest and implications for management and conservation |
| title_full_unstemmed | Genetic variability of Araucaria angustifolia in the Argentinean Parana Forest and implications for management and conservation |
| title_short | Genetic variability of Araucaria angustifolia in the Argentinean Parana Forest and implications for management and conservation |
| title_sort | genetic variability of araucaria angustifolia in the argentinean parana forest and implications for management and conservation |
| topic | Araucaria Angustifolia Variación Genética Marcadores Genéticos Distribución Geográfica Genetic Variation Genetic Markers Geographical Distribution Bosque del Paraná Marcadores Moleculares |
| url | https://link.springer.com/article/10.1007/s00468-018-1701-4 http://hdl.handle.net/20.500.12123/3190 https://doi.org/10.1007/s00468-018-1701-4 |
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