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dc.creatorSpigler, Rachel
dc.date.accessioned2022-03-17T17:18:23Z
dc.date.available2022-03-17T17:18:23Z
dc.date.issued2016-10-06
dc.identifier.citationSpigler, R. B. (2017). Plasticity of floral longevity and floral display in the self-compatible biennial Sabatia angularis (Gentianaceae): untangling the role of multiple components of pollination. Annals of Botany, 119(1), 167–176. https://doi.org/10.1093/aob/mcw195
dc.identifier.issn1095-8290
dc.identifier.doihttp://dx.doi.org/10.34944/dspace/7472
dc.identifier.urihttp://hdl.handle.net/20.500.12613/7494
dc.description.abstractBackground and Aims: Plasticity of floral traits in response to pollination can enable plants to maximize opportunities for pollen import and export under poor pollination conditions, while minimizing costs under favourable ones. Both floral longevity and display are key traits influencing pollination. While pollination-induced flower wilting is widely documented, we lack an understanding of the multifactorial complexity of this response, including the influence of other pollination components, costs of extended longevity and subsequent impacts on floral display. Methods: Plasticity of floral longevity was experimentally evaluated in Sabatia angularis in response to multiple pollination factors: pollen addition, removal, and source (self, single-donor outcross, multiple-donor outcross) and timing of pollination. Effects of pollen quantity were further evaluated by exploiting variation in autonomous self-pollen deposition. Delayed pollination costs were tested comparing seed set from early versus late pollinations. Finally, I compared floral display metrics (peak floral display, time to peak flower, flowering duration, mean flowering rate) between experimentally pollinated and control plants. Key Results: Floral longevity was highly plastic in response to pollen addition and its timing, and the response was dose-dependent but insensitive to pollen source. Pollen removal tended to extend floral longevity, but only insofar as it precluded pollination-induced wilting via autonomous self-pollination. Under delayed pollination, the wilting response was faster and no cost was detected. Pollination further led to reduced peak floral displays and condensed flowering periods. Conclusions: Floral longevity and display plasticity could optimize fitness in S. angularis, a species prone to pollen limitation and high inbreeding depression. Under pollinator scarcity, extended floral longevities offer greater opportunities for pollen receipt and export at no cost to seed set, reproductive assurance via autonomous self-pollination and larger, more attractive floral displays. Under high pollinator availability, shortened longevities lead to smaller displays that should lower the risk of geitonogamy.
dc.format.extent10 pages
dc.languageEnglish
dc.language.isoeng
dc.relation.ispartofFaculty/ Researcher Works
dc.relation.haspartAnnals of Botany, Vol. 119, Iss. 1
dc.relation.isreferencedbyOxford University Press
dc.rightsAll Rights Reserved
dc.subjectAutonomous selfing
dc.subjectCorolla wilting
dc.subjectDelayed pollination
dc.subjectFloral display
dc.subjectFloral longevity
dc.subjectFloral lifespan
dc.subjectPlasticity
dc.subjectPollen limitation
dc.subjectPollinator scarcity
dc.subjectPollination
dc.subjectSabatia angularis
dc.titlePlasticity of floral longevity and floral display in the self-compatible biennial Sabatia angularis (Gentianaceae): untangling the role of multiple components of pollination
dc.typeText
dc.type.genreJournal article
dc.description.departmentBiology
dc.relation.doihttps://doi.org/10.1093/aob/mcw195
dc.ada.noteFor Americans with Disabilities Act (ADA) accommodation, including help with reading this content, please contact scholarshare@temple.edu
dc.description.schoolcollegeTemple University. College of Science and Technology
dc.creator.orcidSpigler|0000-0002-5997-9781
dc.temple.creatorSpigler, Rachel B.
refterms.dateFOA2022-03-17T17:18:23Z


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