Intra-individual floral variation improves male fitness in a hummingbird-pollinated species
Autor(a) principal: | |
---|---|
Data de Publicação: | 2023 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.flora.2023.152270 http://hdl.handle.net/11449/248636 |
Resumo: | Intra-individual variation in floral traits is widespread but yet poorly understood. Variations in flower size within individuals can have implications for plant reproductive success, hence may be under pollinator-mediated phenotypic selection. Most studies on pollinator-mediated selection only evaluate female reproductive success, although floral traits can be under stronger or opposing selection via male fitness. Here we evaluated selection on intra-individual variation and integration of floral traits via its effects on male reproductive success (pollen removal) on a hummingbird-pollinated species. We sampled flowers of Justicia sebastianopolitanae that were exposed to pollinators for 24 h and counted the number of pollen grains that remained in the anthers. We measured corolla length, corolla tube length, anther, and stigma height, as well as herkogamy, display size, and estimated the coefficient of variation (CV) of traits for each individual. We found that the greatest variation in floral traits occurs within individuals. Although intra-individual variation in anther height positively affected pollen removal, we did not detect significant selection, implying that intra-individual variation is not a target for pollinator-mediated selection through male fitness in this plant population. We also found selection on the mean of anther height, indicating the importance of the spatial separation between male and female structures. The variation in anther height may increase the area of pollen deposition on the pollinator's body. Therefore, intra-individual variation could increase the chance of an individual's pollen reaching more stigmas with different heights. We highlight that intra-individual variation should be more widely studied in the context of pollinator-mediated selection and its importance for the reproductive success of individuals in a population. |
id |
UNSP_22f4ebd35829a40d6c356ee2af7669de |
---|---|
oai_identifier_str |
oai:repositorio.unesp.br:11449/248636 |
network_acronym_str |
UNSP |
network_name_str |
Repositório Institucional da UNESP |
repository_id_str |
2946 |
spelling |
Intra-individual floral variation improves male fitness in a hummingbird-pollinated speciesFloral traitsMale successPhenotypic integrationPollinationPollinator-mediated selectionWithin-individual variationIntra-individual variation in floral traits is widespread but yet poorly understood. Variations in flower size within individuals can have implications for plant reproductive success, hence may be under pollinator-mediated phenotypic selection. Most studies on pollinator-mediated selection only evaluate female reproductive success, although floral traits can be under stronger or opposing selection via male fitness. Here we evaluated selection on intra-individual variation and integration of floral traits via its effects on male reproductive success (pollen removal) on a hummingbird-pollinated species. We sampled flowers of Justicia sebastianopolitanae that were exposed to pollinators for 24 h and counted the number of pollen grains that remained in the anthers. We measured corolla length, corolla tube length, anther, and stigma height, as well as herkogamy, display size, and estimated the coefficient of variation (CV) of traits for each individual. We found that the greatest variation in floral traits occurs within individuals. Although intra-individual variation in anther height positively affected pollen removal, we did not detect significant selection, implying that intra-individual variation is not a target for pollinator-mediated selection through male fitness in this plant population. We also found selection on the mean of anther height, indicating the importance of the spatial separation between male and female structures. The variation in anther height may increase the area of pollen deposition on the pollinator's body. Therefore, intra-individual variation could increase the chance of an individual's pollen reaching more stigmas with different heights. We highlight that intra-individual variation should be more widely studied in the context of pollinator-mediated selection and its importance for the reproductive success of individuals in a population.Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Jardim Botânico do Rio de Janeiro. Rua Pacheco Leão, 915. Rio de Janeiro, RJPrograma de Pós Graduação em Ecologia Universidade Federal do Rio de Janeiro, RJLaboratório de Ecologia da Polinização e Interaçãoes – LEPI Instituto de Biociências Universidade Estadual Paulista “Júlio de Mesquita Filho”, SPDepartment of Biological Sciences East Tennessee State University, 125 Brown HallLaboratório de Ecologia da Polinização e Interaçãoes – LEPI Instituto de Biociências Universidade Estadual Paulista “Júlio de Mesquita Filho”, SPCNPq: 304458/2022–8CNPq: 304794/2018–0CNPq: 308559/2022–3CAPES: 88887.335096/2019–00CNPq: CNE E-26/2002.775/2018CNPq: E-26/201.000/2022Jardim Botânico do Rio de Janeiro. Rua Pacheco LeãoUniversidade Federal do Rio de Janeiro (UFRJ)Universidade Estadual Paulista (UNESP)East Tennessee State UniversityPaglia, IsisPinto, Alessandra RibeiroAmorim, Felipe W. [UNESP]Arceo-Gómez, GerardoFreitas, Leandro2023-07-29T13:49:28Z2023-07-29T13:49:28Z2023-05-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1016/j.flora.2023.152270Flora: Morphology, Distribution, Functional Ecology of Plants, v. 302.0367-2530http://hdl.handle.net/11449/24863610.1016/j.flora.2023.1522702-s2.0-85151674458Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengFlora: Morphology, Distribution, Functional Ecology of Plantsinfo:eu-repo/semantics/openAccess2024-04-10T14:46:00Zoai:repositorio.unesp.br:11449/248636Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T16:08:52.613701Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Intra-individual floral variation improves male fitness in a hummingbird-pollinated species |
title |
Intra-individual floral variation improves male fitness in a hummingbird-pollinated species |
spellingShingle |
Intra-individual floral variation improves male fitness in a hummingbird-pollinated species Paglia, Isis Floral traits Male success Phenotypic integration Pollination Pollinator-mediated selection Within-individual variation |
title_short |
Intra-individual floral variation improves male fitness in a hummingbird-pollinated species |
title_full |
Intra-individual floral variation improves male fitness in a hummingbird-pollinated species |
title_fullStr |
Intra-individual floral variation improves male fitness in a hummingbird-pollinated species |
title_full_unstemmed |
Intra-individual floral variation improves male fitness in a hummingbird-pollinated species |
title_sort |
Intra-individual floral variation improves male fitness in a hummingbird-pollinated species |
author |
Paglia, Isis |
author_facet |
Paglia, Isis Pinto, Alessandra Ribeiro Amorim, Felipe W. [UNESP] Arceo-Gómez, Gerardo Freitas, Leandro |
author_role |
author |
author2 |
Pinto, Alessandra Ribeiro Amorim, Felipe W. [UNESP] Arceo-Gómez, Gerardo Freitas, Leandro |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Jardim Botânico do Rio de Janeiro. Rua Pacheco Leão Universidade Federal do Rio de Janeiro (UFRJ) Universidade Estadual Paulista (UNESP) East Tennessee State University |
dc.contributor.author.fl_str_mv |
Paglia, Isis Pinto, Alessandra Ribeiro Amorim, Felipe W. [UNESP] Arceo-Gómez, Gerardo Freitas, Leandro |
dc.subject.por.fl_str_mv |
Floral traits Male success Phenotypic integration Pollination Pollinator-mediated selection Within-individual variation |
topic |
Floral traits Male success Phenotypic integration Pollination Pollinator-mediated selection Within-individual variation |
description |
Intra-individual variation in floral traits is widespread but yet poorly understood. Variations in flower size within individuals can have implications for plant reproductive success, hence may be under pollinator-mediated phenotypic selection. Most studies on pollinator-mediated selection only evaluate female reproductive success, although floral traits can be under stronger or opposing selection via male fitness. Here we evaluated selection on intra-individual variation and integration of floral traits via its effects on male reproductive success (pollen removal) on a hummingbird-pollinated species. We sampled flowers of Justicia sebastianopolitanae that were exposed to pollinators for 24 h and counted the number of pollen grains that remained in the anthers. We measured corolla length, corolla tube length, anther, and stigma height, as well as herkogamy, display size, and estimated the coefficient of variation (CV) of traits for each individual. We found that the greatest variation in floral traits occurs within individuals. Although intra-individual variation in anther height positively affected pollen removal, we did not detect significant selection, implying that intra-individual variation is not a target for pollinator-mediated selection through male fitness in this plant population. We also found selection on the mean of anther height, indicating the importance of the spatial separation between male and female structures. The variation in anther height may increase the area of pollen deposition on the pollinator's body. Therefore, intra-individual variation could increase the chance of an individual's pollen reaching more stigmas with different heights. We highlight that intra-individual variation should be more widely studied in the context of pollinator-mediated selection and its importance for the reproductive success of individuals in a population. |
publishDate |
2023 |
dc.date.none.fl_str_mv |
2023-07-29T13:49:28Z 2023-07-29T13:49:28Z 2023-05-01 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1016/j.flora.2023.152270 Flora: Morphology, Distribution, Functional Ecology of Plants, v. 302. 0367-2530 http://hdl.handle.net/11449/248636 10.1016/j.flora.2023.152270 2-s2.0-85151674458 |
url |
http://dx.doi.org/10.1016/j.flora.2023.152270 http://hdl.handle.net/11449/248636 |
identifier_str_mv |
Flora: Morphology, Distribution, Functional Ecology of Plants, v. 302. 0367-2530 10.1016/j.flora.2023.152270 2-s2.0-85151674458 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Flora: Morphology, Distribution, Functional Ecology of Plants |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808128610845851648 |