Invisible patterns: Changes in floral UV pigmentation along an elevational gradient in the Colombian Andes
La pigmentación floral ha sido moldeada por presiones bióticas y abióticas. Los pigmentos que absorben radiación UV (pigmentos UV) cumplen un rol dual en las plantas, pues presentan señales visuales a sus polinizadores y protegen las estructuras reproductivas de la radiación UV y temperatura. Se car...
- Autores:
- Tipo de recurso:
- Fecha de publicación:
- 2024
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- Universidad del Rosario
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- Repositorio EdocUR - U. Rosario
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- spa
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- Acceso en línea:
- https://doi.org/10.48713/10336_42393
https://repository.urosario.edu.co/handle/10336/42393
- Palabra clave:
- Asteraceae
Páramo
PNN Cocuy
Polinizadores
Temperatura
Irradiancia UV
Asteraceae
Páramo
PNN Cocuy
Pollinators
Temperature
UV irradiance
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dc.title.none.fl_str_mv |
Invisible patterns: Changes in floral UV pigmentation along an elevational gradient in the Colombian Andes |
dc.title.TranslatedTitle.none.fl_str_mv |
Patrones invisibles: cambios en la pigmentación floral UV en un gradiente altitudinal de los Andes Colombianos |
title |
Invisible patterns: Changes in floral UV pigmentation along an elevational gradient in the Colombian Andes |
spellingShingle |
Invisible patterns: Changes in floral UV pigmentation along an elevational gradient in the Colombian Andes Asteraceae Páramo PNN Cocuy Polinizadores Temperatura Irradiancia UV Asteraceae Páramo PNN Cocuy Pollinators Temperature UV irradiance |
title_short |
Invisible patterns: Changes in floral UV pigmentation along an elevational gradient in the Colombian Andes |
title_full |
Invisible patterns: Changes in floral UV pigmentation along an elevational gradient in the Colombian Andes |
title_fullStr |
Invisible patterns: Changes in floral UV pigmentation along an elevational gradient in the Colombian Andes |
title_full_unstemmed |
Invisible patterns: Changes in floral UV pigmentation along an elevational gradient in the Colombian Andes |
title_sort |
Invisible patterns: Changes in floral UV pigmentation along an elevational gradient in the Colombian Andes |
dc.contributor.advisor.none.fl_str_mv |
Sánchez Andrade, Adriana |
dc.subject.none.fl_str_mv |
Asteraceae Páramo PNN Cocuy Polinizadores Temperatura Irradiancia UV |
topic |
Asteraceae Páramo PNN Cocuy Polinizadores Temperatura Irradiancia UV Asteraceae Páramo PNN Cocuy Pollinators Temperature UV irradiance |
dc.subject.keyword.none.fl_str_mv |
Asteraceae Páramo PNN Cocuy Pollinators Temperature UV irradiance |
description |
La pigmentación floral ha sido moldeada por presiones bióticas y abióticas. Los pigmentos que absorben radiación UV (pigmentos UV) cumplen un rol dual en las plantas, pues presentan señales visuales a sus polinizadores y protegen las estructuras reproductivas de la radiación UV y temperatura. Se caracterizaron los patrones de pigmentación UV en la flora de páramo, utilizando un gradiente altitudinal de aprox. 600 en el PNN Cocuy, y se evaluó cómo se relacionan la radiación UV y temperatura con la pigmentación UV. Se realizó un muestreo de inflorescencias de plantas de la familia Asteraceae en el gradiente y se estimaron las concentraciones de pigmentos mediante fotografía UV y espectrofotometría. Adicionalmente, mediciones de irradiancia UV y temperatura a lo largo del gradiente permitieron determinar que a mayor altitud se presenta mayor irradiancia UV y menores temperaturas. La mayoría de especies muestreadas tienen estructuras reproductivas contrastantes, ya que presentan flores de disco que absorben radiación UV, y polen que refleja la radiación UV; este patrón corresponde a una señal visual para los polinizadores. La altitud afectó significativamente a los pigmentos en plantas cuyas inflorescencias apuntan hacia el sol (Monticalia, Baccharis, Werneria), quienes priorizan la protección frente al estrés abiótico; mientras que no tuvo efectos sobre inflorescencias que no reciben radiación directa del sol (Culcitium, Espeletia), quienes priorizan mantener la señal visual a sus polinizadores. Este es el primer estudio en caracterizar la pigmentación UV en la flora de los páramos. |
publishDate |
2024 |
dc.date.accessioned.none.fl_str_mv |
2024-04-03T15:16:14Z |
dc.date.available.none.fl_str_mv |
2024-04-03T15:16:14Z |
dc.date.created.none.fl_str_mv |
2024-02-27 |
dc.date.embargoEnd.none.fl_str_mv |
info:eu-repo/date/embargoEnd/2026-04-04 |
dc.type.none.fl_str_mv |
bachelorThesis |
dc.type.coar.fl_str_mv |
http://purl.org/coar/resource_type/c_7a1f |
dc.type.document.none.fl_str_mv |
Trabajo de grado |
dc.type.spa.none.fl_str_mv |
Pre-print |
dc.identifier.doi.none.fl_str_mv |
https://doi.org/10.48713/10336_42393 |
dc.identifier.uri.none.fl_str_mv |
https://repository.urosario.edu.co/handle/10336/42393 |
url |
https://doi.org/10.48713/10336_42393 https://repository.urosario.edu.co/handle/10336/42393 |
dc.language.iso.none.fl_str_mv |
spa |
language |
spa |
dc.rights.*.fl_str_mv |
Attribution-NonCommercial-NoDerivatives 4.0 International |
dc.rights.coar.fl_str_mv |
http://purl.org/coar/access_right/c_f1cf |
dc.rights.acceso.none.fl_str_mv |
Restringido (Temporalmente bloqueado) |
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http://creativecommons.org/licenses/by-nc-nd/4.0/ |
rights_invalid_str_mv |
Attribution-NonCommercial-NoDerivatives 4.0 International Restringido (Temporalmente bloqueado) http://creativecommons.org/licenses/by-nc-nd/4.0/ http://purl.org/coar/access_right/c_f1cf |
dc.format.extent.none.fl_str_mv |
29 pp |
dc.format.mimetype.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidad del Rosario |
dc.publisher.department.none.fl_str_mv |
Facultad de Ciencias Naturales |
dc.publisher.program.none.fl_str_mv |
Biología |
publisher.none.fl_str_mv |
Universidad del Rosario |
institution |
Universidad del Rosario |
dc.source.bibliographicCitation.none.fl_str_mv |
Koski, Mathew H.; MacQueen, Drew; Ashman, Tia-Lynn (2020) Floral Pigmentation Has Responded Rapidly to Global Change in Ozone and Temperature. En: Current Biology. Vol. 30; No. 22; pp. 4425 - 4431.e3; 0960-9822; Consultado en: 2022/09/25/15:48:11. Disponible en: http://www.sciencedirect.com/science/article/pii/S0960982220312677. Disponible en: 10.1016/j.cub.2020.08.077. Koski, Matthew H.; Ashman, Tia-Lynn (2016) Macroevolutionary patterns of ultraviolet floral pigmentation explained by geography and associated bioclimatic factors. En: New Phytologist. Vol. 211; No. 2; pp. 708 - 718; 1469-8137; Consultado en: 2022/09/25/15:48:21. Disponible en: https://onlinelibrary.wiley.com/doi/abs/10.1111/nph.13921. Disponible en: 10.1111/nph.13921. Todesco, Marco; Bercovich, Natalia; Kim, Amy; Imerovski, Ivana; Owens, Gregory L; Dorado Ruiz, Óscar; Holalu, Srinidhi V; Madilao, Lufiani L; Jahani, Mojtaba; Légaré, Jean-Sébastien; Blackman, Benjamin K; Rieseberg, Loren H; Ross-Ibarra, Jeffrey; Kleine-Vehn, Jürgen; Baldwin, Ian T (2022) Genetic basis and dual adaptive role of floral pigmentation in sunflowers. En: eLife. Vol. 11; pp. e72072 2050-084X; Consultado en: 2022/12/27/14:09:30. Disponible en: https://doi.org/10.7554/eLife.72072. Disponible en: 10.7554/eLife.72072. Brock, Marcus T.; Lucas, Lauren K.; Anderson, Nickolas A.; Rubin, Matthew J.; Cody Markelz, R. J.; Covington, Michael F.; Devisetty, Upendra K.; Chapple, Clint; Maloof, Julin N.; Weinig, Cynthia (2016) Genetic architecture, biochemical underpinnings and ecological impact of floral UV patterning. En: Molecular Ecology. Vol. 25; No. 5; pp. 1122 - 1140; 1365-294X; Consultado en: 2023/01/23/16:09:10. Disponible en: https://onlinelibrary.wiley.com/doi/abs/10.1111/mec.13542. Disponible en: 10.1111/mec.13542. Altshuler, Douglas L. (2003) Flower Color, Hummingbird Pollination, and Habitat Irradiance in Four Neotropical Forests1. En: Biotropica. Vol. 35; No. 3; pp. 344 - 355; 1744-7429; Consultado en: 2023/02/11/19:31:54. Disponible en: https://onlinelibrary.wiley.com/doi/abs/10.1111/j.1744-7429.2003.tb00588.x. Disponible en: 10.1111/j.1744-7429.2003.tb00588.x. Tunes, Priscila; Camargo, Maria Gabriela Gutierrez; Guimarães, Elza (2021) Floral UV Features of Plant Species From a Neotropical Savanna. En: Frontiers in Plant Science. Vol. 12; 1664-462X; Consultado en: 2023/02/23/17:31:17. Disponible en: https://www.frontiersin.org/articles/10.3389/fpls.2021.618028. Piri, E.; Babaeian, M.; Tavassoli, A.; Esmaeilian, Y. (2011) Effects of UV irradiation on plants. En: African Journal of Microbiology Research. Vol. 5; No. 14; pp. 1710 - 1716; 1996-0808; Consultado en: 2023/04/10/14:34:53. 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Narbona, Eduardo; del Valle, José Carlos; Arista, Montserrat; Buide, María Luisa; Ortiz, Pedro Luis (2021) Major Flower Pigments Originate Different Colour Signals to Pollinators. En: Frontiers in Ecology and Evolution. Vol. 9; 2296-701X; Consultado en: 2023/05/26/12:40:19. Disponible en: https://www.frontiersin.org/articles/10.3389/fevo.2021.743850. Ferreyra, María Lorena Falcone; Serra, Paloma; Casati, Paula (2021) Recent advances on the roles of flavonoids as plant protective molecules after UV and high light exposure. En: Physiologia Plantarum. Vol. 173; No. 3; pp. 736 - 749; 1399-3054; Consultado en: 2023/05/31/12:26:19. Disponible en: https://onlinelibrary.wiley.com/doi/abs/10.1111/ppl.13543. Disponible en: 10.1111/ppl.13543. van der Kooi, Casper J; Kevan, Peter G; Koski, Matthew H (2019) The thermal ecology of flowers. En: Annals of Botany. Vol. 124; No. 3; pp. 343 - 353; 0305-7364; Consultado en: 2023/06/05/17:53:01. Disponible en: https://doi.org/10.1093/aob/mcz073. 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Pelayo, Roxibell C.; Llambí, Luis D.; Gámez, Luis E.; Barrios, Yeni C.; Ramirez, Lirey A.; Torres, J. Eloy; Cuesta, Francisco (2021) Plant Phenology Dynamics and Pollination Networks in Summits of the High Tropical Andes: A Baseline for Monitoring Climate Change Impacts. En: Frontiers in Ecology and Evolution. Vol. 9; 2296-701X; Consultado en: 2024/01/24/21:33:04. Disponible en: https://www.frontiersin.org/articles/10.3389/fevo.2021.679045. |
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Sánchez Andrade, Adriana52699585600Márquez Molina, CamiloBiólogoPregradoe67b9e33-d528-46b6-bdd7-d08265a89a91-12024-04-03T15:16:14Z2024-04-03T15:16:14Z2024-02-27info:eu-repo/date/embargoEnd/2026-04-04La pigmentación floral ha sido moldeada por presiones bióticas y abióticas. Los pigmentos que absorben radiación UV (pigmentos UV) cumplen un rol dual en las plantas, pues presentan señales visuales a sus polinizadores y protegen las estructuras reproductivas de la radiación UV y temperatura. Se caracterizaron los patrones de pigmentación UV en la flora de páramo, utilizando un gradiente altitudinal de aprox. 600 en el PNN Cocuy, y se evaluó cómo se relacionan la radiación UV y temperatura con la pigmentación UV. Se realizó un muestreo de inflorescencias de plantas de la familia Asteraceae en el gradiente y se estimaron las concentraciones de pigmentos mediante fotografía UV y espectrofotometría. Adicionalmente, mediciones de irradiancia UV y temperatura a lo largo del gradiente permitieron determinar que a mayor altitud se presenta mayor irradiancia UV y menores temperaturas. La mayoría de especies muestreadas tienen estructuras reproductivas contrastantes, ya que presentan flores de disco que absorben radiación UV, y polen que refleja la radiación UV; este patrón corresponde a una señal visual para los polinizadores. La altitud afectó significativamente a los pigmentos en plantas cuyas inflorescencias apuntan hacia el sol (Monticalia, Baccharis, Werneria), quienes priorizan la protección frente al estrés abiótico; mientras que no tuvo efectos sobre inflorescencias que no reciben radiación directa del sol (Culcitium, Espeletia), quienes priorizan mantener la señal visual a sus polinizadores. Este es el primer estudio en caracterizar la pigmentación UV en la flora de los páramos.Floral pigmentation is shaped by both biotic and abiotic pressures. UV absorbing pigments serve a dual role in plants, they display visual cues to pollinators and protect reproductive structures from UV radiation and temperature stress. Since climate change could be altering the conditions that determine flower pigmentation, and páramos are one of the most vulnerable ecosystems, we characterized floral UV pigmentation in the páramo’s flora along an elevation gradient of ca. 600 m in Cocuy National Park. We also tested how changes in UV radiation and temperature are related to floral UV pigmentation. We sampled inflorescences of the plant family Asteraceae along the gradient, and by UV photography and spectrophotometry, we determined the UV pigmentation patterns and UV-absorbing pigment concentrations. Additionally, we also measured UV irradiance and temperature along the gradient and determined that the highest elevations have lower temperatures and higher UV irradiance. Most of the species have contrasting reproductive structures with UV-absorbing disc florets and UV-reflective pollen, which acts as a visual cue to pollinators. The UV-absorbing pigments of species with inflorescences facing the sun (from the genera Monticalia, Baccharis, Werneria) were significantly affected by elevation, while species with inflorescences that do not receive direct radiation were not significantly affected by elevation (Culcitium and Espeletia). In addition, species that do not change UV pigment concentrations may prioritize pollination against abiotic stress, while species that change pigment concentrations prioritize protection from abiotic stress. 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