Universidad Peruana Cayetano Heredia

Variation in Manduca sexta Pollination-Related Floral Traits and Reproduction in a Wild Tobacco Plant

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dc.contributor.author Bing, J.
dc.contributor.author Li, X.
dc.contributor.author Haverkamp, A.
dc.contributor.author Baldwin, I.T.
dc.contributor.author Hansson, B.S.
dc.contributor.author Knaden, M.
dc.contributor.author Yon, F.
dc.date.accessioned 2021-10-04T23:01:01Z
dc.date.available 2021-10-04T23:01:01Z
dc.date.issued 2021
dc.identifier.uri https://hdl.handle.net/20.500.12866/9908
dc.description.abstract Most flowering plants depend on animal pollination for successful sexual reproduction. Floral signals such as color, shape, and odor are crucial in establishing this (often mutualistic) interaction. Plant and pollinator phenotypes can vary temporally but also spatially, thus creating mosaic-like patterns of local adaptations. Here, we investigated natural variation in floral morphology, flower volatile emission, and phenology in four accessions of a self-compatible wild tobacco, Nicotiana attenuata, to assess how these traits match the sensory perception of a known pollinator, the hawkmoth Manduca sexta. These accessions differ in floral traits and also in their habitat altitudes. Based on habitat temperatures, the accession occurring at the highest altitude (California) is less likely to be visited by M. sexta, while the others (Arizona, Utah 1, and Utah 2) are known to receive M. sexta pollinations. The accessions varied significantly in flower morphologies, volatile emissions, flower opening, and phenology, traits likely important for M. sexta perception and floral handling. In wind tunnel assays, we assessed the seed set of emasculated flowers after M. sexta visitation and of natural selfed and hand-pollinated selfed flowers. After moth visitations, plants of two accessions (Arizona and Utah 2) produced more capsules than the other two, consistent with predictions that accessions co-occurring with M. sexta would benefit more from the pollination services of this moth. We quantified flower and capsule production in four accessions in a glasshouse assay without pollinators to assess the potential for self-pollination. The two Utah accessions set significantly more seeds after pollen supplementation compared with those of autonomous selfing flowers, suggesting a greater opportunistic benefit from efficient pollinators than the other two. Moreover, emasculated flowers of the accession with the most exposed stigma (Utah 2) produced the greatest seed set after M. sexta visitation. This study reveals intraspecific variation in pollination syndromes that illuminate the potential of a plant species to adapt to local pollinator communities, changing environments, and altered pollination networks en_US
dc.language.iso eng
dc.publisher Frontiers Media
dc.relation.ispartofseries Frontiers in Ecology and Evolution
dc.rights info:eu-repo/semantics/restrictedAccess
dc.rights.uri https://creativecommons.org/licenses/by-nc-nd/4.0/deed.es
dc.subject floral trait en_US
dc.subject local adaptation en_US
dc.subject Manduca sexta en_US
dc.subject Nicotiana attenuata en_US
dc.subject plant reproduction en_US
dc.subject pollination en_US
dc.title Variation in Manduca sexta Pollination-Related Floral Traits and Reproduction in a Wild Tobacco Plant en_US
dc.type info:eu-repo/semantics/article
dc.identifier.doi https://doi.org/10.3389/fevo.2021.680463
dc.relation.issn 2296-701X


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