Intraspecific phylogeny of a Patagonian fescue: differentiation at molecular markers and morphological traits suggests hybridization at peripheral populations
Background and Aims: Grasses of the Festuca genus have complex phylogenetic relations due to morphological similarities among species and interspecific hybridization processes. Within Patagonian fescues, information concerning phylogenetic relationships is very scarce. In Festuca pallescens, a widel...
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| Format: | info:ar-repo/semantics/artículo |
| Language: | Inglés |
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Oxford University Press
2024
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| Online Access: | http://hdl.handle.net/20.500.12123/18535 https://academic.oup.com/aob/article/131/6/1011/7174887 https://doi.org/10.1093/aob/mcad060 |
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| author | Guidalevich, Verónica Nagahama, Nicolas Lopez, Aldana Angeli, Juan Pablo Marchelli, Paula Azpilicueta, Maria Marta |
| author_browse | Angeli, Juan Pablo Azpilicueta, Maria Marta Guidalevich, Verónica Lopez, Aldana Marchelli, Paula Nagahama, Nicolas |
| author_facet | Guidalevich, Verónica Nagahama, Nicolas Lopez, Aldana Angeli, Juan Pablo Marchelli, Paula Azpilicueta, Maria Marta |
| author_sort | Guidalevich, Verónica |
| collection | INTA Digital |
| description | Background and Aims: Grasses of the Festuca genus have complex phylogenetic relations due to morphological similarities among species and interspecific hybridization processes. Within Patagonian fescues, information concerning phylogenetic relationships is very scarce. In Festuca pallescens, a widely distributed species, the high phenotypic variability and the occurrence of interspecific hybridization preclude a clear identification of the populations. Given the relevance of natural rangelands for livestock production and their high degradation due to climate change, conservation actions are needed and knowledge about genetic variation is required.
Methods: To unravel the intraspecific phylogenetic relations and to detect genetic differences, we studied 21 populations of the species along its natural geographical distribution by coupling both molecular [internal transcribed spacer (ITS) and trnL-F markers] and morpho-anatomical analyses. Bayesian inference, maximum likelihood and maximum parsimony methods were applied to assemble a phylogenetic tree, including other native species. The morphological data set was analysed by discriminant and cluster analyses.
Key Results: The combined information of the Bayesian tree (ITS marker), the geographical distribution of haplotype variants (trnL-F marker) and the morpho-anatomical traits, distinguished populations located at the margins of the distribution. Some of the variants detected were shared with other sympatric species of fescues.
Conclusions: These results suggest the occurrence of hybridization processes between species of the genus at peripheral sites characterized by suboptimal conditions, which might be key to the survival of these populations. |
| format | info:ar-repo/semantics/artículo |
| id | INTA18535 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2024 |
| publishDateRange | 2024 |
| publishDateSort | 2024 |
| publisher | Oxford University Press |
| publisherStr | Oxford University Press |
| record_format | dspace |
| spelling | INTA185352024-07-17T12:37:35Z Intraspecific phylogeny of a Patagonian fescue: differentiation at molecular markers and morphological traits suggests hybridization at peripheral populations Guidalevich, Verónica Nagahama, Nicolas Lopez, Aldana Angeli, Juan Pablo Marchelli, Paula Azpilicueta, Maria Marta Festuca Phylogeny Genetic Markers Hybridization Intraspecific Hybridization Genetics Filogenia Marcadores Genéticos Hibridación Hibridación Intraespecífica Genética Marcadores Moleculares Región Patagónica Background and Aims: Grasses of the Festuca genus have complex phylogenetic relations due to morphological similarities among species and interspecific hybridization processes. Within Patagonian fescues, information concerning phylogenetic relationships is very scarce. In Festuca pallescens, a widely distributed species, the high phenotypic variability and the occurrence of interspecific hybridization preclude a clear identification of the populations. Given the relevance of natural rangelands for livestock production and their high degradation due to climate change, conservation actions are needed and knowledge about genetic variation is required. Methods: To unravel the intraspecific phylogenetic relations and to detect genetic differences, we studied 21 populations of the species along its natural geographical distribution by coupling both molecular [internal transcribed spacer (ITS) and trnL-F markers] and morpho-anatomical analyses. Bayesian inference, maximum likelihood and maximum parsimony methods were applied to assemble a phylogenetic tree, including other native species. The morphological data set was analysed by discriminant and cluster analyses. Key Results: The combined information of the Bayesian tree (ITS marker), the geographical distribution of haplotype variants (trnL-F marker) and the morpho-anatomical traits, distinguished populations located at the margins of the distribution. Some of the variants detected were shared with other sympatric species of fescues. Conclusions: These results suggest the occurrence of hybridization processes between species of the genus at peripheral sites characterized by suboptimal conditions, which might be key to the survival of these populations. EEA Bariloche Fil: Guidalevich, Verónica. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche. Instituto de Investigaciones Forestales y Agropecuarias Bariloche; Argentina Fil: Guidalevich, Verónica. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones Forestales y Agropecuarias Bariloche; Argentina Fil: Nagahama, Nicolas. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Esquel; Argentina Fil: Lopez, Aldana. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche. Instituto de Investigaciones Forestales y Agropecuarias Bariloche; Argentina Fil: Lopez, Aldana. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones Forestales y Agropecuarias Bariloche; Argentina Fil: Angeli, Juan Pablo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Esquel; Argentina Fil: Marchelli, Paula. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche. Instituto de Investigaciones Forestales y Agropecuarias Bariloche; Argentina Fil: Marchelli, Paula. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones Forestales y Agropecuarias Bariloche; Argentina Fil: Azpilicueta, Maria Marta. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche. Instituto de Investigaciones Forestales y Agropecuarias Bariloche; Argentina Fil: Azpilicueta, Maria Marta. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones Forestales y Agropecuarias Bariloche; Argentina 2024-07-17T12:33:02Z 2024-07-17T12:33:02Z 2023-05 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/18535 https://academic.oup.com/aob/article/131/6/1011/7174887 0305-7364 (Print) 1095-8290 (Online) https://doi.org/10.1093/aob/mcad060 eng info:eu-repograntAgreement/INTA/2019-PE-E6-I142-001, Mejoramiento genético de leguminosas y gramíneas forrajeras para incrementar la productividad y la sustentabilidad de los sistemas agropecuarios de la Argentina 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 Oxford University Press Annals of Botany 131 (6) : 1011-1023. (May 2023) |
| spellingShingle | Festuca Phylogeny Genetic Markers Hybridization Intraspecific Hybridization Genetics Filogenia Marcadores Genéticos Hibridación Hibridación Intraespecífica Genética Marcadores Moleculares Región Patagónica Guidalevich, Verónica Nagahama, Nicolas Lopez, Aldana Angeli, Juan Pablo Marchelli, Paula Azpilicueta, Maria Marta Intraspecific phylogeny of a Patagonian fescue: differentiation at molecular markers and morphological traits suggests hybridization at peripheral populations |
| title | Intraspecific phylogeny of a Patagonian fescue: differentiation at molecular markers and morphological traits suggests hybridization at peripheral populations |
| title_full | Intraspecific phylogeny of a Patagonian fescue: differentiation at molecular markers and morphological traits suggests hybridization at peripheral populations |
| title_fullStr | Intraspecific phylogeny of a Patagonian fescue: differentiation at molecular markers and morphological traits suggests hybridization at peripheral populations |
| title_full_unstemmed | Intraspecific phylogeny of a Patagonian fescue: differentiation at molecular markers and morphological traits suggests hybridization at peripheral populations |
| title_short | Intraspecific phylogeny of a Patagonian fescue: differentiation at molecular markers and morphological traits suggests hybridization at peripheral populations |
| title_sort | intraspecific phylogeny of a patagonian fescue differentiation at molecular markers and morphological traits suggests hybridization at peripheral populations |
| topic | Festuca Phylogeny Genetic Markers Hybridization Intraspecific Hybridization Genetics Filogenia Marcadores Genéticos Hibridación Hibridación Intraespecífica Genética Marcadores Moleculares Región Patagónica |
| url | http://hdl.handle.net/20.500.12123/18535 https://academic.oup.com/aob/article/131/6/1011/7174887 https://doi.org/10.1093/aob/mcad060 |
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