Natural hybridization among subspecies of turnera sidoides l. (passifloraceae) revealed by morphological and genetic evidence

Turnera sidoides is a complex of outcrossing, perennial, rhizomatous herbs that is widely distributed in southern South America. Five subspecies are recognized taxonomically based on morphological features and geographical distribution. In certain regions, the areas of distribution of the subspecie...

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Autores principales: Moreno, Ercilia María Sara, Speranza, Pablo Rafael, Roggero Luque, Juan Manuel, Solís Neffa, Viviana Griselda
Formato: Artículo
Lenguaje:Inglés
Publicado: Springer 2022
Materias:
Turnera sidoides
Hybridization
Gene flow
RAPD
Acceso en línea:http://repositorio.unne.edu.ar/handle/123456789/30846
Aporte de:
RIUNNE - Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE) de Universidad Nacional del Nordeste
id I48-R184-123456789-30846
record_format dspace
institution Universidad Nacional del Nordeste
institution_str I-48
repository_str R-184
collection RIUNNE - Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE)
language Inglés
topic Turnera sidoides
Hybridization
Gene flow
RAPD
spellingShingle Turnera sidoides
Hybridization
Gene flow
RAPD
Moreno, Ercilia María Sara
Speranza, Pablo Rafael
Roggero Luque, Juan Manuel
Solís Neffa, Viviana Griselda
Natural hybridization among subspecies of turnera sidoides l. (passifloraceae) revealed by morphological and genetic evidence
topic_facet Turnera sidoides
Hybridization
Gene flow
RAPD
description Turnera sidoides is a complex of outcrossing, perennial, rhizomatous herbs that is widely distributed in southern South America. Five subspecies are recognized taxonomically based on morphological features and geographical distribution. In certain regions, the areas of distribution of the subspecies overlap partially. In such contact zones, the extent of reproductive barriers among subspecies is still largely unknown, but morphologically intermediate individuals have been found in the field, indicating that hybridization may actually occur between subspecies. Crossability among subspecies of T. sidoides has been shown by experimental studies with cultivated plants, but the mechanisms involved in natural populations are still unknown. To investigate the mechanisms that underlie gene flow within the T. sidoides complex, in this paper we analyze the morphological and genetic variation, as well as the crossability among taxa in a contact zone between subspecies pinnatifida and sidoides, in southeastern Uruguay. Our results constitute the first evidences of ongoing natural hybridization between subspecies of T. sidoides and suggest that, although hybridization may not have been of significance in the early phase of the species differentiation, reticulate evolution is ongoing enhancing the current morphological and genetic variability of the complex.
format Artículo
author Moreno, Ercilia María Sara
Speranza, Pablo Rafael
Roggero Luque, Juan Manuel
Solís Neffa, Viviana Griselda
author_facet Moreno, Ercilia María Sara
Speranza, Pablo Rafael
Roggero Luque, Juan Manuel
Solís Neffa, Viviana Griselda
author_sort Moreno, Ercilia María Sara
title Natural hybridization among subspecies of turnera sidoides l. (passifloraceae) revealed by morphological and genetic evidence
title_short Natural hybridization among subspecies of turnera sidoides l. (passifloraceae) revealed by morphological and genetic evidence
title_full Natural hybridization among subspecies of turnera sidoides l. (passifloraceae) revealed by morphological and genetic evidence
title_fullStr Natural hybridization among subspecies of turnera sidoides l. (passifloraceae) revealed by morphological and genetic evidence
title_full_unstemmed Natural hybridization among subspecies of turnera sidoides l. (passifloraceae) revealed by morphological and genetic evidence
title_sort natural hybridization among subspecies of turnera sidoides l. (passifloraceae) revealed by morphological and genetic evidence
publisher Springer
publishDate 2022
url http://repositorio.unne.edu.ar/handle/123456789/30846
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AT roggeroluquejuanmanuel naturalhybridizationamongsubspeciesofturnerasidoideslpassifloraceaerevealedbymorphologicalandgeneticevidence
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