Morphological variability of Ruprechtia apetala Wedd. (Polygonaceae) in the subandean and pampean sierras of Argentina

Background and aims: Ruprechtia apetala (Polygonaceae) is a woody Chaquenian species with large morphological variability throughout its distribution range. The present study attempts to evaluate this variability within Argentina. M&M: Forty-two individuals were collected from six Argentinia...

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Autores principales: Tessore, Ángeles, Mogni, Virginia Yanina, Oakley, Luis Jorge, Prado, Darién Eros
Formato: Artículo revista
Lenguaje:Español
Publicado: Sociedad Argentina de Botánica 2020
Materias:
Bosques estacionalmente secos
Chaco
ecotipos
variables morfológicas.
ecotypes
morphological variables
Seasonally Dry Forests
Acceso en línea:https://revistas.unc.edu.ar/index.php/BSAB/article/view/26175
Aporte de:
Boletín de la Sociedad Argentina de Botánica de Universidad Nacional de Córdoba
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institution Universidad Nacional de Córdoba
institution_str I-10
repository_str R-325
container_title_str Boletín de la Sociedad Argentina de Botánica
language Español
format Artículo revista
topic Bosques estacionalmente secos
Chaco
ecotipos
variables morfológicas.
Chaco
ecotypes
morphological variables
Seasonally Dry Forests
spellingShingle Bosques estacionalmente secos
Chaco
ecotipos
variables morfológicas.
Chaco
ecotypes
morphological variables
Seasonally Dry Forests
Tessore, Ángeles
Mogni, Virginia Yanina
Oakley, Luis Jorge
Prado, Darién Eros
Morphological variability of Ruprechtia apetala Wedd. (Polygonaceae) in the subandean and pampean sierras of Argentina
topic_facet Bosques estacionalmente secos
Chaco
ecotipos
variables morfológicas.
Chaco
ecotypes
morphological variables
Seasonally Dry Forests
author Tessore, Ángeles
Mogni, Virginia Yanina
Oakley, Luis Jorge
Prado, Darién Eros
author_facet Tessore, Ángeles
Mogni, Virginia Yanina
Oakley, Luis Jorge
Prado, Darién Eros
author_sort Tessore, Ángeles
title Morphological variability of Ruprechtia apetala Wedd. (Polygonaceae) in the subandean and pampean sierras of Argentina
title_short Morphological variability of Ruprechtia apetala Wedd. (Polygonaceae) in the subandean and pampean sierras of Argentina
title_full Morphological variability of Ruprechtia apetala Wedd. (Polygonaceae) in the subandean and pampean sierras of Argentina
title_fullStr Morphological variability of Ruprechtia apetala Wedd. (Polygonaceae) in the subandean and pampean sierras of Argentina
title_full_unstemmed Morphological variability of Ruprechtia apetala Wedd. (Polygonaceae) in the subandean and pampean sierras of Argentina
title_sort morphological variability of ruprechtia apetala wedd. (polygonaceae) in the subandean and pampean sierras of argentina
description Background and aims: Ruprechtia apetala (Polygonaceae) is a woody Chaquenian species with large morphological variability throughout its distribution range. The present study attempts to evaluate this variability within Argentina. M&M: Forty-two individuals were collected from six Argentinian provinces, corresponding to the regions of Sierra Chaco, Piedmont Forest and the transition zone between them. Numerous morphological characters, both reproductive and vegetative, were analyzed. Principal Components and Conglomerates Analysis were performed, in order to establish the existence of morphogroups; the latter were evaluated by univariate analysis (Kruskal-Wallis test and cluster description by R) and multivariate (ANOSIM and PERMANOVA), to detect possible significant intraspecific differences. Additionally, a distribution map of the collected specimens was drawn up.  Results: From the multivariate analysis two morphological groups were detected, mainly at foliar and growth habit levels. The ANOSIM and PERMANOVA analysis show a significant global difference among both groups (p-value < 0,05); however, the corresponding statistics indicate a high similarity between them. Additionally, it was demonstrated that no characters are mutually exclusive to either group. Conclusions: Observed morphological differences between specimens from different biogeographical regions, though not mutually exclusive, allow postulating the existence of ecotypes within the species. 
publisher Sociedad Argentina de Botánica
publishDate 2020
url https://revistas.unc.edu.ar/index.php/BSAB/article/view/26175
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first_indexed 2024-09-03T22:49:52Z
last_indexed 2024-09-03T22:49:52Z
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spelling I10-R325-article-261752020-11-10T22:43:20Z Morphological variability of Ruprechtia apetala Wedd. (Polygonaceae) in the subandean and pampean sierras of Argentina Variabilidad morfológica de Ruprechtia apetala wedd. (Polygonaceae) en las sierras pampeanas y subandinas de la Argentina Tessore, Ángeles Mogni, Virginia Yanina Oakley, Luis Jorge Prado, Darién Eros Bosques estacionalmente secos Chaco ecotipos variables morfológicas. Chaco ecotypes morphological variables Seasonally Dry Forests Background and aims: Ruprechtia apetala (Polygonaceae) is a woody Chaquenian species with large morphological variability throughout its distribution range. The present study attempts to evaluate this variability within Argentina. M&M: Forty-two individuals were collected from six Argentinian provinces, corresponding to the regions of Sierra Chaco, Piedmont Forest and the transition zone between them. Numerous morphological characters, both reproductive and vegetative, were analyzed. Principal Components and Conglomerates Analysis were performed, in order to establish the existence of morphogroups; the latter were evaluated by univariate analysis (Kruskal-Wallis test and cluster description by R) and multivariate (ANOSIM and PERMANOVA), to detect possible significant intraspecific differences. Additionally, a distribution map of the collected specimens was drawn up.  Results: From the multivariate analysis two morphological groups were detected, mainly at foliar and growth habit levels. The ANOSIM and PERMANOVA analysis show a significant global difference among both groups (p-value < 0,05); however, the corresponding statistics indicate a high similarity between them. Additionally, it was demonstrated that no characters are mutually exclusive to either group. Conclusions: Observed morphological differences between specimens from different biogeographical regions, though not mutually exclusive, allow postulating the existence of ecotypes within the species.  Introducción y Objetivos: Ruprechtia apetala (Polygonaceae) es una especie que presenta una gran variabilidad morfológica entre individuos a lo largo de su rango de distribución. El presente estudio tiene como objetivo evaluar dicha variabilidad morfológica dentro del territorio argentino. M&M: se colectaron 42 individuos en seis provincias argentinas correspondientes a las regiones Chaqueña serrana, Selva Pedemontana y a la zona de transición entre ellas. Fueron analizados numerosos caracteres morfológicos, tanto vegetativos como reproductivos. Se realizaron Análisis de Componentes Principales y de Conglomerados para detectar morfogrupos; estos últimos se evaluaron mediante análisis univariados (Prueba de Kruskal-Wallis y descripción de clusters mediante R) y multivariados (ANOSIM y PERMANOVA), para evaluar posibles diferencias intraespecíficas significativas. Adicionalmente, se confeccionó un mapa de distribución biogeográfica de los individuos. Resultados: a partir del análisis multivariado se detectaron dos grupos morfológicos, principalmente a niveles foliar y de hábito de crecimiento. Los Análisis ANOSIM y PERMANOVA muestran que existe una diferencia global significativa entre ambos grupos (p-valor < 0,05); no obstante, los estadísticos correspondientes indican una elevada similitud entre ellos. Adicionalmente, mediante la descripción de cada conglomerado, se corroboró que no existen estados de caracteres mutuamente excluyentes para uno u otro grupo. Conclusiones: La variabilidad morfológica encontrada entre ejemplares de distintas regiones biogeográficas, y la no exclusividad de caracteres morfológicos para cada grupo particular, permite postular la existencia de ecotipos en la especie. Sociedad Argentina de Botánica 2020-09-24 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf text/html https://revistas.unc.edu.ar/index.php/BSAB/article/view/26175 10.31055/1851.2372.v55.n3.26175 Boletín de la Sociedad Argentina de Botánica (Journal of the Argentine Botanical Society; Vol. 55 No. 3 (2020): Setember; 389-401 Boletín de la Sociedad Argentina de Botánica; Vol. 55 Núm. 3 (2020): Septiembre; 389-401 Boletín de la Sociedad Argentina de Botánica; v. 55 n. 3 (2020): Septiembre; 389-401 1851-2372 0373-580X 10.31055/1851.2372.v55.n3 spa https://revistas.unc.edu.ar/index.php/BSAB/article/view/26175/31093 https://revistas.unc.edu.ar/index.php/BSAB/article/view/26175/31095 Derechos de autor 2020 Luis Jorge Oakley, Virginia Yanina Mogni, Ángeles Tessore, Darién Eros Prado https://creativecommons.org/licenses/by-nc-nd/4.0

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