Reproductive biology of Chuquiraga avellanedae (Asteraceae), an endemic shrub of Patagonia
Background and aims: Chuquiraga avellanedae (Asteraceae) is an endemic species of the Patagonian steppes and a key component of the ecosystem. Knowing the reproductive system and the dependence on pollinating agents is important for understanding gene flow and seed production. The objectives were to...
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| Formato: | Artículo revista |
| Lenguaje: | Español |
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Sociedad Argentina de Botánica
2021
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| Acceso en línea: | https://revistas.unc.edu.ar/index.php/BSAB/article/view/33707 |
| Aporte de: |
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I10-R325-article-33707 |
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ojs |
| institution |
Universidad Nacional de Córdoba |
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I-10 |
| repository_str |
R-325 |
| container_title_str |
Boletín de la Sociedad Argentina de Botánica |
| language |
Español |
| format |
Artículo revista |
| topic |
ambofilia Chuquiraga avellanedae insectos polinizadores sistema reproductivo polinización manual producción de semillas Ambophily breeding system Chuquiraga avellanedae seed set manual pollination pollinating insects |
| spellingShingle |
ambofilia Chuquiraga avellanedae insectos polinizadores sistema reproductivo polinización manual producción de semillas Ambophily breeding system Chuquiraga avellanedae seed set manual pollination pollinating insects Zaffaroni, Facundo T. Campanella, M. Victoria Martínez, Fernando J. Reproductive biology of Chuquiraga avellanedae (Asteraceae), an endemic shrub of Patagonia |
| topic_facet |
ambofilia Chuquiraga avellanedae insectos polinizadores sistema reproductivo polinización manual producción de semillas Ambophily breeding system Chuquiraga avellanedae seed set manual pollination pollinating insects |
| author |
Zaffaroni, Facundo T. Campanella, M. Victoria Martínez, Fernando J. |
| author_facet |
Zaffaroni, Facundo T. Campanella, M. Victoria Martínez, Fernando J. |
| author_sort |
Zaffaroni, Facundo T. |
| title |
Reproductive biology of Chuquiraga avellanedae (Asteraceae), an endemic shrub of Patagonia |
| title_short |
Reproductive biology of Chuquiraga avellanedae (Asteraceae), an endemic shrub of Patagonia |
| title_full |
Reproductive biology of Chuquiraga avellanedae (Asteraceae), an endemic shrub of Patagonia |
| title_fullStr |
Reproductive biology of Chuquiraga avellanedae (Asteraceae), an endemic shrub of Patagonia |
| title_full_unstemmed |
Reproductive biology of Chuquiraga avellanedae (Asteraceae), an endemic shrub of Patagonia |
| title_sort |
reproductive biology of chuquiraga avellanedae (asteraceae), an endemic shrub of patagonia |
| description |
Background and aims: Chuquiraga avellanedae (Asteraceae) is an endemic species of the Patagonian steppes and a key component of the ecosystem. Knowing the reproductive system and the dependence on pollinating agents is important for understanding gene flow and seed production. The objectives were to determine whether this species is self-incompatible and ambophilous.
M&M: A field experiment was carried out and the following treatments were applied: cross-pollination, self-pollination, wind pollination, spontaneous pollination and control. In addition, observations were made on pollinator insects during two seasons.
Results: Seed production was significantly higher in the cross-pollination treatment and the control, differing from self-pollination and wind pollination. There was no seed production in the spontaneous pollination treatment. Flowers were frequently visited by insects mainly belonging to Hymenoptera and Diptera. There was inter-annual variation in the abundance of the major pollinator taxa. There was variation in the structure of the pollinator assemblage between years.
Conclusions: Chuquiraga avellanedae is considered a self-incompatible species and a generalist-pollinated plant visited by many pollinators. This work reveals that pollinator insects are crucial for the reproductive success of this shrub. Moreover, C. avellanedae is an important source of resources for a high number of insects that visit its flowers. In agreement with previous knowledge, these findings indicate that the interaction C. avellanedae-insects represents a relevant component for ecosystem processes and services at regional scale. |
| publisher |
Sociedad Argentina de Botánica |
| publishDate |
2021 |
| url |
https://revistas.unc.edu.ar/index.php/BSAB/article/view/33707 |
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AT zaffaronifacundot reproductivebiologyofchuquiragaavellanedaeasteraceaeanendemicshrubofpatagonia AT campanellamvictoria reproductivebiologyofchuquiragaavellanedaeasteraceaeanendemicshrubofpatagonia AT martinezfernandoj reproductivebiologyofchuquiragaavellanedaeasteraceaeanendemicshrubofpatagonia AT zaffaronifacundot biologiareproductivadechuquiragaavellanedaeasteraceaeunarbustoendemicodelapatagonia AT campanellamvictoria biologiareproductivadechuquiragaavellanedaeasteraceaeunarbustoendemicodelapatagonia AT martinezfernandoj biologiareproductivadechuquiragaavellanedaeasteraceaeunarbustoendemicodelapatagonia |
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2024-09-03T22:50:07Z |
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2024-09-03T22:50:07Z |
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I10-R325-article-337072022-03-25T14:19:41Z Reproductive biology of Chuquiraga avellanedae (Asteraceae), an endemic shrub of Patagonia Biología reproductiva de Chuquiraga avellanedae (Asteraceae), un arbusto endémico de la Patagonia Zaffaroni, Facundo T. Campanella, M. Victoria Martínez, Fernando J. ambofilia Chuquiraga avellanedae insectos polinizadores sistema reproductivo polinización manual producción de semillas Ambophily breeding system Chuquiraga avellanedae seed set manual pollination pollinating insects Background and aims: Chuquiraga avellanedae (Asteraceae) is an endemic species of the Patagonian steppes and a key component of the ecosystem. Knowing the reproductive system and the dependence on pollinating agents is important for understanding gene flow and seed production. The objectives were to determine whether this species is self-incompatible and ambophilous. M&M: A field experiment was carried out and the following treatments were applied: cross-pollination, self-pollination, wind pollination, spontaneous pollination and control. In addition, observations were made on pollinator insects during two seasons. Results: Seed production was significantly higher in the cross-pollination treatment and the control, differing from self-pollination and wind pollination. There was no seed production in the spontaneous pollination treatment. Flowers were frequently visited by insects mainly belonging to Hymenoptera and Diptera. There was inter-annual variation in the abundance of the major pollinator taxa. There was variation in the structure of the pollinator assemblage between years. Conclusions: Chuquiraga avellanedae is considered a self-incompatible species and a generalist-pollinated plant visited by many pollinators. This work reveals that pollinator insects are crucial for the reproductive success of this shrub. Moreover, C. avellanedae is an important source of resources for a high number of insects that visit its flowers. In agreement with previous knowledge, these findings indicate that the interaction C. avellanedae-insects represents a relevant component for ecosystem processes and services at regional scale. Introducción y objetivos: Chuquiraga avellanedae (Asteraceae) es una especie endémica de la estepa patagónica que representa un componente fundamental de los ecosistemas de la región. Conocer el sistema reproductivo, la dependencia a los agentes polinizadores y el ensamble de visitantes florales es importante para la comprensión de los patrones de flujo génico y la cantidad y la calidad de las semillas producidas. Los objetivos de este trabajo fueron determinar el grado de autoincompatibilidad de C. avellanedae y evaluar si es una especie ambófila. M&M: Mediante cruces controlados se puso a prueba la capacidad de producir semillas bajo distintos tratamientos: polinización cruzada, autopolinización forzada, polinización por viento, autopolinización espontánea y control. Además, se realizaron observaciones de los insectos polinizadores durante dos temporadas. Resultados: La producción de semillas fue significativamente mayor en el tratamiento de polinización cruzada y el control, diferenciándose de la autopolinización forzada y la polinización por viento. No hubo producción de semillas en el tratamiento de autopolinización espontánea. Las flores fueron frecuentemente visitadas por especies de Hymenoptera y Diptera. Hubo variación inter-anual en la abundancia de los taxones más frecuentes que componen el ensamble de polinizadores. Conclusiones: Chuquiraga avellanedae resultó autoincompatible y con un ensamble de polinizadores generalista. Los insectos polinizadores son cruciales para el éxito reproductivo de este arbusto. Coincidiendo con otros antecedentes, este trabajo indica que la interacción C. avellanedae-insectos representa un componente relevante en procesos y servicios ecosistémicos a nivel regional. Sociedad Argentina de Botánica 2021-11-04 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf text/html application/pdf https://revistas.unc.edu.ar/index.php/BSAB/article/view/33707 10.31055/1851.2372.v56.n4.33707 Boletín de la Sociedad Argentina de Botánica (Journal of the Argentine Botanical Society; Vol. 56 No. 4 (2021): December Boletín de la Sociedad Argentina de Botánica; Vol. 56 Núm. 4 (2021): Diciembre Boletín de la Sociedad Argentina de Botánica; v. 56 n. 4 (2021): Diciembre 1851-2372 0373-580X 10.31055/1851.2372.v56.n4 spa https://revistas.unc.edu.ar/index.php/BSAB/article/view/33707/35568 https://revistas.unc.edu.ar/index.php/BSAB/article/view/33707/35569 https://revistas.unc.edu.ar/index.php/BSAB/article/view/33707/35570 Derechos de autor 2021 Facundo T. Zaffaroni, M. Victoria Campanella, Fernando J. Martínez https://creativecommons.org/licenses/by-nc-nd/4.0 |