View Item
- xmlui.general.dspace_homeCentros e Institutos de InvestigaciónCIAP. Centro de Investigaciones AgropecuariasInstituto de Fisiología y Recursos Genéticos VegetalesArtículos científicosxmlui.ArtifactBrowser.ItemViewer.trail
- DSpace Home
- Centros e Institutos de Investigación
- CIAP. Centro de Investigaciones Agropecuarias
- Instituto de Fisiología y Recursos Genéticos Vegetales
- Artículos científicos
- View Item
Cytogenetic evidence of hybridization in Prosopis alba, P. hassleri, and P. fiebrigii in the semiarid-humid Chaco transition
Abstract
Hybridization is a common and widespread phenomenon in vascular plants, leading to genetic exchange between related species. Interspecific hybridization has been extensively reported in Prosopis, a key genus of the Gran Chaco Americano, when species grow in sympatry or have adjacent distributions. Here, we performed a cytogenetic study in a hybrid zone of Prosopis alba, P. hassleri, and P. fiebrigii in southern South America. We characterized the
[ver mas...]
Hybridization is a common and widespread phenomenon in vascular plants, leading to genetic exchange between related species. Interspecific hybridization has been extensively reported in Prosopis, a key genus of the Gran Chaco Americano, when species grow in sympatry or have adjacent distributions. Here, we performed a cytogenetic study in a hybrid zone of Prosopis alba, P. hassleri, and P. fiebrigii in southern South America. We characterized the karyotypes of pure species and the putative interspecific hybrids using chromosome fluorescent banding. Two karyotypes according to the heterochromatin pattern were identified, one corresponding to P. alba and the other to P. hassleri and P. fiebrigii; hybrid individuals presented P. alba or P. hassleri/P. fiebrigii karyotypes. The karyotypic formula and the number of nucleolar organizer regions were the same for all the studied morphotypes. Chromosome similarity among different species of the genus allows a continued hybridization and introgression between species and lends support to the hypothesis of a relatively recent diversification of Prosopis. Studying karyotype variation within a population could be a novel approach to the cytogenetic study of hybrids in the future.
[Cerrar]
![Thumbnail](/xmlui/bitstream/handle/20.500.12123/14983/PlantBiosystems-157-4_cover.jpg?sequence=4&isAllowed=y)
Author
Vega, Carmen Delcira;
Cosacov, Andrea;
Acosta, María Cristina;
Fuente
Plant Biosystems - An International Journal Dealing with all Aspects of Plant Biology 157 (4) : 873-880 (2023)
Date
2023-06-06
Editorial
Taylor and Francis
ISSN
1126-3504
1724-5575 (online)
1724-5575 (online)
Documentos Relacionados
Formato
pdf
Tipo de documento
artículo
Proyectos
(ver más)
INTA/2019-PE-E6-I114-001, Caracterización de la diversidad genética de plantas, animales y microorganismos mediante herramientas de genómica aplicada.
Palabras Claves
Derechos de acceso
Restringido
![](../../themes/Mirage2/images/cc-by-nc-sa.png)