Enhanced UV-Reflection Facilitated a Shift in the Pollination Systemof the Red Poppy, Papaver rhoeas (Papaveraceae)
Author
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Martínez Harms, Jaime
Author
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Hadar, Ravit
Author
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Márquez, Natalia
Author
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Menzel, Randolf
Author
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Shmida, Avi
Author
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Stavenga, Doekele G.
Author
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Vorobyev, Misha
Admission date
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2021-01-04T21:50:53Z
Available date
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2021-01-04T21:50:53Z
Publication date
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2020
Cita de ítem
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Plants 2020, 9(8), 927
es_ES
Identifier
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10.3390/plants9080927
Identifier
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https://repositorio.uchile.cl/handle/2250/178195
Abstract
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Evolutionary change is considered a major factor influencing the invasion of new habitats by plants. Yet, evidence on how such modifications promote range expansion remains rather limited. Here we investigated flower color modifications in the red poppy,Papaver rhoeas(Papaveraceae), as a result of its introduction into Central Europe and the impact of those modifications on its interactions with pollinators. We found that while flowers of Eastern Mediterranean poppies reflect exclusively in the red part of the spectrum, those of Central European poppies reflect both red and ultraviolet (UV) light. This change coincides with a shift from pollination by glaphyrid beetles (Glaphyridae) to bees. Glaphyrids have red-sensitive photoreceptors that are absent in bees, which therefore will not be attracted by colors of exclusively red-reflecting flowers. However, UV-reflecting flowers are easily detectable by bees, as revealed by visual modeling. In the North Mediterranean, flowers with low and high UV reflectance occur sympatrically. We hypothesize that Central European populations ofP. rhoeaswere initially polymorphic with respect to their flower color and that UV reflection drove a shift in the pollination system ofP. rhoeasthat facilitated its spread across Europe.
es_ES
Patrocinador
dc.description.sponsorship
Deutscher Akademischer Austausch Dienst (DAAD)
Comisión Nacional de Investigación Científica y Tecnológica (CONICYT)
United States Department of Defense
Air Force Office of Scientific Research (AFOSR)
FA9550-15-1-0068