Morphological and molecular characterization of a hybrid zone between Prosopis alba and P. nigra in the Chaco region of northwestern Argentina
The Gran Chaco is the largest dry forest in South America. One of the key taxa of this biome is the genus Prosopis (Fabaceae) which contains several economically important species. One of the characteristics of this genus is its natural capacity to exchange genetic information among congeneric speci...
| Autores principales: | , , , , , |
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| Formato: | Artículo |
| Lenguaje: | Inglés |
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JD Sauerlaender's Verlag
2021
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| Materias: | |
| Acceso en línea: | http://hdl.handle.net/20.500.12123/8938 https://sciendo.com/article/10.2478/sg-2020-0007 https://doi.org/10.2478/sg-2020-0007 |
| _version_ | 1855484294752894976 |
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| author | Vega, Carmen Delcira Teich, Ingrid Acosta, Maria Cristina Lopez Lauenstein, Diego Verga, Anibal Cosacov, Andrea |
| author_browse | Acosta, Maria Cristina Cosacov, Andrea Lopez Lauenstein, Diego Teich, Ingrid Vega, Carmen Delcira Verga, Anibal |
| author_facet | Vega, Carmen Delcira Teich, Ingrid Acosta, Maria Cristina Lopez Lauenstein, Diego Verga, Anibal Cosacov, Andrea |
| author_sort | Vega, Carmen Delcira |
| collection | INTA Digital |
| description | The Gran Chaco is the largest dry forest in South America. One of the key taxa of this biome is the genus Prosopis (Fabaceae) which contains several economically important species. One of the characteristics of this genus is its natural capacity to exchange genetic information among congeneric species, generating zones of high morphological and genetic variability at contact points. The study and management of these contact areas can contribute to the dynamic conservation of these native genetic resources. In this study, we analysed three sites within a gradient of land aridity, where P. nigra and P. alba grow in sympatry and apparently hybridize. This is the first study performed in both, Prosopis pure sites and hybrid swarm, which includes a spatially explicit approach and simultaneously analyses fruit and leaf morphological variation, together with molecular information (microsatellites markers). We performed a multivariate morphological analysis, Bayesian genetic clustering and multivariate associations between genetic and morphological variability in the pure parental populations and in the hybrid swarm, considering possible spatial autocorrelation. Bayesian cluster analysis revealed two distinct groups corresponding to each species, differentiating the pure morphotypes from sites 1 and 2. Site 3, corresponding to the hybrid swarm, was composed of pure P. alba and P. nigra trees and hybrid individuals. We found morphological and molecular evidence of hybridization between P. alba and P. nigra, and detected novel phenotypes in the hybrid site. |
| format | Artículo |
| id | INTA8938 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2021 |
| publishDateRange | 2021 |
| publishDateSort | 2021 |
| publisher | JD Sauerlaender's Verlag |
| publisherStr | JD Sauerlaender's Verlag |
| record_format | dspace |
| spelling | INTA89382021-03-19T14:24:00Z Morphological and molecular characterization of a hybrid zone between Prosopis alba and P. nigra in the Chaco region of northwestern Argentina Vega, Carmen Delcira Teich, Ingrid Acosta, Maria Cristina Lopez Lauenstein, Diego Verga, Anibal Cosacov, Andrea Hybridization Leaves Fruits Microsatellites Natural Hybridization Ceratonia Siliqua Prosopis Alba Prosopis Nigra Hibridación Hibridación Natural Hojas Frutas Microsatélites Dry Forest Variability Algarrobo Argentina Chaco, Argentina The Gran Chaco is the largest dry forest in South America. One of the key taxa of this biome is the genus Prosopis (Fabaceae) which contains several economically important species. One of the characteristics of this genus is its natural capacity to exchange genetic information among congeneric species, generating zones of high morphological and genetic variability at contact points. The study and management of these contact areas can contribute to the dynamic conservation of these native genetic resources. In this study, we analysed three sites within a gradient of land aridity, where P. nigra and P. alba grow in sympatry and apparently hybridize. This is the first study performed in both, Prosopis pure sites and hybrid swarm, which includes a spatially explicit approach and simultaneously analyses fruit and leaf morphological variation, together with molecular information (microsatellites markers). We performed a multivariate morphological analysis, Bayesian genetic clustering and multivariate associations between genetic and morphological variability in the pure parental populations and in the hybrid swarm, considering possible spatial autocorrelation. Bayesian cluster analysis revealed two distinct groups corresponding to each species, differentiating the pure morphotypes from sites 1 and 2. Site 3, corresponding to the hybrid swarm, was composed of pure P. alba and P. nigra trees and hybrid individuals. We found morphological and molecular evidence of hybridization between P. alba and P. nigra, and detected novel phenotypes in the hybrid site. Instituto de Fisiología y Recursos Genéticos Vegetales Fil: Vega, Carmen Delcira . Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Fisiología y Recursos Genéticos Vegetales; Argentina Fil: Teich, Ingrid. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Fisiología y Recursos Genéticos Vegetales; Argentina Fil: Teich, Ingrid. Universidad Nacional de Córdoba. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto Multidisciplinario de Biología Vegetal (IMBIV). Laboratorio de Ecología Evolutiva - Biología Floral; Argentina Fil: Acosta, Maria Cristina. Universidad Nacional de Córdoba. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto Multidisciplinario de Biología Vegetal (IMBIV). Laboratorio de Ecología Evolutiva - Biología Floral; Argentina Fil: Acosta, Maria Cristina. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales; Argentina Fil: Lopez Lauenstein, Diego. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Fisiología y Recursos Genéticos Vegetales; Argentina Fil: Verga, Anibal. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria La Rioja. Agencia De Extensión Rural La Rioja; Argentina Fil: Cosacov, Andrea. Universidad Nacional de Córdoba. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto Multidisciplinario de Biología Vegetal (IMBIV). Laboratorio de Ecología Evolutiva - Biología Floral; Argentina 2021-03-19T14:00:35Z 2021-03-19T14:00:35Z 2020-06-26 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/8938 https://sciendo.com/article/10.2478/sg-2020-0007 0037-5349 https://doi.org/10.2478/sg-2020-0007 eng info:eu-repograntAgreement/INTA/PNFOR-1104064/AR./Aplicación de herramientas moleculares para el uso y la conservación de la diversidad genética forestal. info:eu-repograntAgreement/INTA/PNFOR-1104063/AR./Mejoramiento genético de especies forestales nativas de alto valor. info:eu-repo/semantics/restrictedAccess application/pdf JD Sauerlaender's Verlag Silvae Genetica 69 (1) : 44 - 54 (2020) |
| spellingShingle | Hybridization Leaves Fruits Microsatellites Natural Hybridization Ceratonia Siliqua Prosopis Alba Prosopis Nigra Hibridación Hibridación Natural Hojas Frutas Microsatélites Dry Forest Variability Algarrobo Argentina Chaco, Argentina Vega, Carmen Delcira Teich, Ingrid Acosta, Maria Cristina Lopez Lauenstein, Diego Verga, Anibal Cosacov, Andrea Morphological and molecular characterization of a hybrid zone between Prosopis alba and P. nigra in the Chaco region of northwestern Argentina |
| title | Morphological and molecular characterization of a hybrid zone between Prosopis alba and P. nigra in the Chaco region of northwestern Argentina |
| title_full | Morphological and molecular characterization of a hybrid zone between Prosopis alba and P. nigra in the Chaco region of northwestern Argentina |
| title_fullStr | Morphological and molecular characterization of a hybrid zone between Prosopis alba and P. nigra in the Chaco region of northwestern Argentina |
| title_full_unstemmed | Morphological and molecular characterization of a hybrid zone between Prosopis alba and P. nigra in the Chaco region of northwestern Argentina |
| title_short | Morphological and molecular characterization of a hybrid zone between Prosopis alba and P. nigra in the Chaco region of northwestern Argentina |
| title_sort | morphological and molecular characterization of a hybrid zone between prosopis alba and p nigra in the chaco region of northwestern argentina |
| topic | Hybridization Leaves Fruits Microsatellites Natural Hybridization Ceratonia Siliqua Prosopis Alba Prosopis Nigra Hibridación Hibridación Natural Hojas Frutas Microsatélites Dry Forest Variability Algarrobo Argentina Chaco, Argentina |
| url | http://hdl.handle.net/20.500.12123/8938 https://sciendo.com/article/10.2478/sg-2020-0007 https://doi.org/10.2478/sg-2020-0007 |
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