Pollinator-mediated selection on Krameria oil flowers: a flower–pollinator fit adaptation to an atypical oil-collecting behaviour?

Autores
Carneiro, Liedson Tavares; Cocucci, Andrea Aristides; Sersic, Alicia Noemi; Machado, Isabel Cristina; Alves Dos Santos, Isabel
Año de publicación
2024
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Background and Aims:Spatial variation in plant–pollinator interactions is a key driver of floral trait diversification. A so far overlooked qualitative aspect of this variation is the behavioural component on flowers that relates to the pollinator fit. We tested the hypothesis that variation in pollinator behaviour influences the geographical pattern of phenotypic selection across the distribution range of the oil-producing Krameria grandiflora (Krameriaceae). This variation mainly involves the presence or absence of flag petal grasping, which is nly performed by representatives of Centris (Centridini, Apidae), an oil-ollecting bee group highly associated with Krameriaceae pollination.• Methods: We quantified variation in floral traits and fitness and estimated pollinator-mediated selection in fivepopulations at a large geographical scale comprising the entire species range. In each population, we sampled individual pollen arrival and germination as a fitness measure, indicating pollination success and pollination performance, which was then relativized and regressed on standardized flower–pollinator fit (flag–stigma distance), advertisement (sepal length) and reward (oil volume) traits. This generated mean-scaled selection gradients used to calculate geographical selection dispersion.• Key Results: Unexpectedly, stronger selection was detected on the flower–pollinator fit trait in populationshighly associated with the absence of flag petal grasping. Geographical variation in selection was mainly attributedto differential selection on the flag–stigma distance generating a selection mosaic. This may involve influences of a spatial variation in pollinator behaviour as well as composition and morphology.• Conclusions: Our results show the adaptive significance of the specialized flag petals of Krameria in the absence of the grasping behaviour and highlight the contribution of geographical variation in pollinator behaviour on flowers in driving selection mosaics, with implications for floral evolution, adaptation to pollinator fit and phenotypic diversity in specialized systems.
Fil: Carneiro, Liedson Tavares. East Tennessee State University; Estados Unidos
Fil: Cocucci, Andrea Aristides. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto Multidisciplinario de Biología Vegetal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; Argentina
Fil: Sersic, Alicia Noemi. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto Multidisciplinario de Biología Vegetal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; Argentina
Fil: Machado, Isabel Cristina. Universidade Federal de Pernambuco; Brasil
Fil: Alves Dos Santos, Isabel. Universidade de Sao Paulo; Brasil
Materia
FLORAL OILS
OIL-COLLECTING BEES
POLLINATOR FIT
SELECTION GRADIENTS
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/266837
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/266837
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network_name_str CONICET Digital (CONICET)
spelling Pollinator-mediated selection on Krameria oil flowers: a flower–pollinator fit adaptation to an atypical oil-collecting behaviour?Carneiro, Liedson TavaresCocucci, Andrea AristidesSersic, Alicia NoemiMachado, Isabel CristinaAlves Dos Santos, IsabelFLORAL OILSOIL-COLLECTING BEESPOLLINATOR FITSELECTION GRADIENTShttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Background and Aims:Spatial variation in plant–pollinator interactions is a key driver of floral trait diversification. A so far overlooked qualitative aspect of this variation is the behavioural component on flowers that relates to the pollinator fit. We tested the hypothesis that variation in pollinator behaviour influences the geographical pattern of phenotypic selection across the distribution range of the oil-producing Krameria grandiflora (Krameriaceae). This variation mainly involves the presence or absence of flag petal grasping, which is nly performed by representatives of Centris (Centridini, Apidae), an oil-ollecting bee group highly associated with Krameriaceae pollination.• Methods: We quantified variation in floral traits and fitness and estimated pollinator-mediated selection in fivepopulations at a large geographical scale comprising the entire species range. In each population, we sampled individual pollen arrival and germination as a fitness measure, indicating pollination success and pollination performance, which was then relativized and regressed on standardized flower–pollinator fit (flag–stigma distance), advertisement (sepal length) and reward (oil volume) traits. This generated mean-scaled selection gradients used to calculate geographical selection dispersion.• Key Results: Unexpectedly, stronger selection was detected on the flower–pollinator fit trait in populationshighly associated with the absence of flag petal grasping. Geographical variation in selection was mainly attributedto differential selection on the flag–stigma distance generating a selection mosaic. This may involve influences of a spatial variation in pollinator behaviour as well as composition and morphology.• Conclusions: Our results show the adaptive significance of the specialized flag petals of Krameria in the absence of the grasping behaviour and highlight the contribution of geographical variation in pollinator behaviour on flowers in driving selection mosaics, with implications for floral evolution, adaptation to pollinator fit and phenotypic diversity in specialized systems.Fil: Carneiro, Liedson Tavares. East Tennessee State University; Estados UnidosFil: Cocucci, Andrea Aristides. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto Multidisciplinario de Biología Vegetal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; ArgentinaFil: Sersic, Alicia Noemi. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto Multidisciplinario de Biología Vegetal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; ArgentinaFil: Machado, Isabel Cristina. Universidade Federal de Pernambuco; BrasilFil: Alves Dos Santos, Isabel. Universidade de Sao Paulo; BrasilOxford University Press2024-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/266837Carneiro, Liedson Tavares; Cocucci, Andrea Aristides; Sersic, Alicia Noemi; Machado, Isabel Cristina; Alves Dos Santos, Isabel; Pollinator-mediated selection on Krameria oil flowers: a flower–pollinator fit adaptation to an atypical oil-collecting behaviour?; Oxford University Press; Annals of Botany; 134; 4; 10-2024; 603-6140305-7364CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/aob/article/134/4/603/7698333info:eu-repo/semantics/altIdentifier/doi/10.1093/aob/mcae102info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:05:27Zoai:ri.conicet.gov.ar:11336/266837instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-03 10:05:28.076CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Pollinator-mediated selection on Krameria oil flowers: a flower–pollinator fit adaptation to an atypical oil-collecting behaviour?
title Pollinator-mediated selection on Krameria oil flowers: a flower–pollinator fit adaptation to an atypical oil-collecting behaviour?
spellingShingle Pollinator-mediated selection on Krameria oil flowers: a flower–pollinator fit adaptation to an atypical oil-collecting behaviour?
Carneiro, Liedson Tavares
FLORAL OILS
OIL-COLLECTING BEES
POLLINATOR FIT
SELECTION GRADIENTS
title_short Pollinator-mediated selection on Krameria oil flowers: a flower–pollinator fit adaptation to an atypical oil-collecting behaviour?
title_full Pollinator-mediated selection on Krameria oil flowers: a flower–pollinator fit adaptation to an atypical oil-collecting behaviour?
title_fullStr Pollinator-mediated selection on Krameria oil flowers: a flower–pollinator fit adaptation to an atypical oil-collecting behaviour?
title_full_unstemmed Pollinator-mediated selection on Krameria oil flowers: a flower–pollinator fit adaptation to an atypical oil-collecting behaviour?
title_sort Pollinator-mediated selection on Krameria oil flowers: a flower–pollinator fit adaptation to an atypical oil-collecting behaviour?
dc.creator.none.fl_str_mv Carneiro, Liedson Tavares
Cocucci, Andrea Aristides
Sersic, Alicia Noemi
Machado, Isabel Cristina
Alves Dos Santos, Isabel
author Carneiro, Liedson Tavares
author_facet Carneiro, Liedson Tavares
Cocucci, Andrea Aristides
Sersic, Alicia Noemi
Machado, Isabel Cristina
Alves Dos Santos, Isabel
author_role author
author2 Cocucci, Andrea Aristides
Sersic, Alicia Noemi
Machado, Isabel Cristina
Alves Dos Santos, Isabel
author2_role author
author
author
author
dc.subject.none.fl_str_mv FLORAL OILS
OIL-COLLECTING BEES
POLLINATOR FIT
SELECTION GRADIENTS
topic FLORAL OILS
OIL-COLLECTING BEES
POLLINATOR FIT
SELECTION GRADIENTS
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Background and Aims:Spatial variation in plant–pollinator interactions is a key driver of floral trait diversification. A so far overlooked qualitative aspect of this variation is the behavioural component on flowers that relates to the pollinator fit. We tested the hypothesis that variation in pollinator behaviour influences the geographical pattern of phenotypic selection across the distribution range of the oil-producing Krameria grandiflora (Krameriaceae). This variation mainly involves the presence or absence of flag petal grasping, which is nly performed by representatives of Centris (Centridini, Apidae), an oil-ollecting bee group highly associated with Krameriaceae pollination.• Methods: We quantified variation in floral traits and fitness and estimated pollinator-mediated selection in fivepopulations at a large geographical scale comprising the entire species range. In each population, we sampled individual pollen arrival and germination as a fitness measure, indicating pollination success and pollination performance, which was then relativized and regressed on standardized flower–pollinator fit (flag–stigma distance), advertisement (sepal length) and reward (oil volume) traits. This generated mean-scaled selection gradients used to calculate geographical selection dispersion.• Key Results: Unexpectedly, stronger selection was detected on the flower–pollinator fit trait in populationshighly associated with the absence of flag petal grasping. Geographical variation in selection was mainly attributedto differential selection on the flag–stigma distance generating a selection mosaic. This may involve influences of a spatial variation in pollinator behaviour as well as composition and morphology.• Conclusions: Our results show the adaptive significance of the specialized flag petals of Krameria in the absence of the grasping behaviour and highlight the contribution of geographical variation in pollinator behaviour on flowers in driving selection mosaics, with implications for floral evolution, adaptation to pollinator fit and phenotypic diversity in specialized systems.
Fil: Carneiro, Liedson Tavares. East Tennessee State University; Estados Unidos
Fil: Cocucci, Andrea Aristides. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto Multidisciplinario de Biología Vegetal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; Argentina
Fil: Sersic, Alicia Noemi. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto Multidisciplinario de Biología Vegetal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; Argentina
Fil: Machado, Isabel Cristina. Universidade Federal de Pernambuco; Brasil
Fil: Alves Dos Santos, Isabel. Universidade de Sao Paulo; Brasil
description Background and Aims:Spatial variation in plant–pollinator interactions is a key driver of floral trait diversification. A so far overlooked qualitative aspect of this variation is the behavioural component on flowers that relates to the pollinator fit. We tested the hypothesis that variation in pollinator behaviour influences the geographical pattern of phenotypic selection across the distribution range of the oil-producing Krameria grandiflora (Krameriaceae). This variation mainly involves the presence or absence of flag petal grasping, which is nly performed by representatives of Centris (Centridini, Apidae), an oil-ollecting bee group highly associated with Krameriaceae pollination.• Methods: We quantified variation in floral traits and fitness and estimated pollinator-mediated selection in fivepopulations at a large geographical scale comprising the entire species range. In each population, we sampled individual pollen arrival and germination as a fitness measure, indicating pollination success and pollination performance, which was then relativized and regressed on standardized flower–pollinator fit (flag–stigma distance), advertisement (sepal length) and reward (oil volume) traits. This generated mean-scaled selection gradients used to calculate geographical selection dispersion.• Key Results: Unexpectedly, stronger selection was detected on the flower–pollinator fit trait in populationshighly associated with the absence of flag petal grasping. Geographical variation in selection was mainly attributedto differential selection on the flag–stigma distance generating a selection mosaic. This may involve influences of a spatial variation in pollinator behaviour as well as composition and morphology.• Conclusions: Our results show the adaptive significance of the specialized flag petals of Krameria in the absence of the grasping behaviour and highlight the contribution of geographical variation in pollinator behaviour on flowers in driving selection mosaics, with implications for floral evolution, adaptation to pollinator fit and phenotypic diversity in specialized systems.
publishDate 2024
dc.date.none.fl_str_mv 2024-10
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/266837
Carneiro, Liedson Tavares; Cocucci, Andrea Aristides; Sersic, Alicia Noemi; Machado, Isabel Cristina; Alves Dos Santos, Isabel; Pollinator-mediated selection on Krameria oil flowers: a flower–pollinator fit adaptation to an atypical oil-collecting behaviour?; Oxford University Press; Annals of Botany; 134; 4; 10-2024; 603-614
0305-7364
CONICET Digital
CONICET
url http://hdl.handle.net/11336/266837
identifier_str_mv Carneiro, Liedson Tavares; Cocucci, Andrea Aristides; Sersic, Alicia Noemi; Machado, Isabel Cristina; Alves Dos Santos, Isabel; Pollinator-mediated selection on Krameria oil flowers: a flower–pollinator fit adaptation to an atypical oil-collecting behaviour?; Oxford University Press; Annals of Botany; 134; 4; 10-2024; 603-614
0305-7364
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/aob/article/134/4/603/7698333
info:eu-repo/semantics/altIdentifier/doi/10.1093/aob/mcae102
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Oxford University Press
publisher.none.fl_str_mv Oxford University Press
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.13397

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