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dc.contributor.author
Gleiser, Gabriela Laura
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dc.contributor.author
Internicola, Antonina I.
dc.contributor.author
Austerlitz, Frédéric
dc.contributor.author
Bernasconi, Giorgina
dc.date.available
2017-01-20T21:27:59Z
dc.date.issued
2014-09
dc.identifier.citation
Gleiser, Gabriela Laura; Internicola, Antonina I.; Austerlitz, Frédéric; Bernasconi, Giorgina; Stabilizing selection on nectar concentration in wild Petunia axillaris, as revealed by genetic analysis of pollen dispersal; Springer; Evolutionary Ecology; 28; 5; 9-2014; 869-884
dc.identifier.issn
0269-7653
dc.identifier.uri
http://hdl.handle.net/11336/11724
dc.description.abstract
Most animal-pollinated plants produce nectar as a pollinator reward. Despite the main role that nectar plays in plant-pollinator interactions, the impact of natural variation in nectar traits on realized male fitness is poorly known. Here, we assessed this relation for a wild Petunia axillaris population using paternity-based direct selection gradient analysis, which allowed us also to infer pollen dispersal patterns. Because male fecundity may depend on other traits which could be associated with nectar characteristics (i.e. volume and concentration), we also considered selection on other key reproductive traits. The analysis revealed that P. axillaris was a strict outcrosser, but that successful pollination occurred mainly among neighbours. Individual plants varied greatly in their male fecundity. Nectar concentration, a key feature of nectar that determines its profitability, was subjected to stabilizing selection. Selection through male function also affected corolla area (positive directional selection), corolla tube length (negative directional selection), and floral display size (stabilizing selection), but none of these traits were phenotypically correlated with nectar characteristics. Because nectar concentration affects the ability and foraging efficiency of different flower visitors to feed on nectar, stabilizing selection may reflect either the preference of the most effective pollinators, or antagonistic selection driven by pollinators and non-pollinating nectar consumers.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Springer
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Nectar Concentration
dc.subject
Petunia Axillaris
dc.subject
Pollen Dispersal
dc.subject
Seed Paternity
dc.subject
Selection Gradients
dc.subject
Stabilizing Selection
dc.subject.classification
Genética y Herencia
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dc.subject.classification
Ciencias Biológicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.subject.classification
Biología Reproductiva
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dc.subject.classification
Ciencias Biológicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.subject.classification
Biología
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dc.subject.classification
Ciencias Biológicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Stabilizing selection on nectar concentration in wild Petunia axillaris, as revealed by genetic analysis of pollen dispersal
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2016-12-12T14:20:36Z
dc.journal.volume
28
dc.journal.number
5
dc.journal.pagination
869-884
dc.journal.pais
Alemania
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dc.journal.ciudad
Berlín
dc.description.fil
Fil: Gleiser, Gabriela Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Patagonia Norte. Instituto de Investigación en Biodiversidad y Medioambiente; Argentina. University of Neuchâtel; Suiza
dc.description.fil
Fil: Internicola, Antonina I.. University of Neuchâtel; Suiza
dc.description.fil
Fil: Austerlitz, Frédéric. Centre National de la Recherche Scientifique; Francia
dc.description.fil
Fil: Bernasconi, Giorgina. University of Neuchâtel; Suiza
dc.journal.title
Evolutionary Ecology
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://link.springer.com/article/10.1007/s10682-014-9714-y
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1007/s10682-014-9714-y
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