Fine-scale spatial genetic structure and gene dispersal in Silene latifolia
Autor(a) principal: | |
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Data de Publicação: | 2011 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10400.1/11382 |
Resumo: | Plants are sessile organisms, often characterized by limited dispersal. Seeds and pollen are the critical stages for gene flow. Here we investigate spatial genetic structure, gene dispersal and the relative contribution of pollen vs seed in the movement of genes in a stable metapopulation of the white campion Silene latifolia within its native range. This short-lived perennial plant is dioecious, has gravity-dispersed seeds and moth-mediated pollination. Direct measures of pollen dispersal suggested that large populations receive more pollen than small isolated populations and that most gene flow occurs within tens of meters. However, these studies were performed in the newly colonized range (North America) where the specialist pollinator is absent. In the native range (Europe), gene dispersal could fall on a different spatial scale. We genotyped 258 individuals from large and small (15) subpopulations along a 60 km, elongated meta-population in Europe using six highly variable microsatellite markers, two X-linked and four autosomal. We found substantial genetic differentiation among subpopulations (global F(ST) = 0.11) and a general pattern of isolation by distance over the whole sampled area. Spatial autocorrelation revealed high relatedness among neighboring individuals over hundreds of meters. Estimates of gene dispersal revealed gene flow at the scale of tens of meters (5-30 m), similar to the newly colonized range. Contrary to expectations, estimates of dispersal based on X and autosomal markers showed very similar ranges, suggesting similar levels of pollen and seed dispersal. This may be explained by stochastic events of extensive seed dispersal in this area and limited pollen dispersal. Heredity (2011) 106, 13-24; doi:10.1038/hdy.2010.38; published online 14 April 2010 |
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Fine-scale spatial genetic structure and gene dispersal in Silene latifoliaPlant-population sizeSeed dispersalPollen dispersalAutocorrelation analysisDioica CaryophyllaceaeGynodioecious plantChloroplast DnaHadena-BicrurisF-StatisticsY-ChromosomePlants are sessile organisms, often characterized by limited dispersal. Seeds and pollen are the critical stages for gene flow. Here we investigate spatial genetic structure, gene dispersal and the relative contribution of pollen vs seed in the movement of genes in a stable metapopulation of the white campion Silene latifolia within its native range. This short-lived perennial plant is dioecious, has gravity-dispersed seeds and moth-mediated pollination. Direct measures of pollen dispersal suggested that large populations receive more pollen than small isolated populations and that most gene flow occurs within tens of meters. However, these studies were performed in the newly colonized range (North America) where the specialist pollinator is absent. In the native range (Europe), gene dispersal could fall on a different spatial scale. We genotyped 258 individuals from large and small (15) subpopulations along a 60 km, elongated meta-population in Europe using six highly variable microsatellite markers, two X-linked and four autosomal. We found substantial genetic differentiation among subpopulations (global F(ST) = 0.11) and a general pattern of isolation by distance over the whole sampled area. Spatial autocorrelation revealed high relatedness among neighboring individuals over hundreds of meters. Estimates of gene dispersal revealed gene flow at the scale of tens of meters (5-30 m), similar to the newly colonized range. Contrary to expectations, estimates of dispersal based on X and autosomal markers showed very similar ranges, suggesting similar levels of pollen and seed dispersal. This may be explained by stochastic events of extensive seed dispersal in this area and limited pollen dispersal. Heredity (2011) 106, 13-24; doi:10.1038/hdy.2010.38; published online 14 April 2010Swiss National Science Foundation [3100A0-122004/1, PIOIA-119443]; Fondation Pierre Mercier pour la ScienceNature Publishing GroupSapientiaBarluenga, M.Austerlitz, F.Elzinga, J. A.Teixeira, S.Goudet, J.Bernasconi, G.2018-12-07T14:53:10Z2011-012011-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.1/11382eng0018-067X10.1038/hdy.2010.38info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-24T10:23:11Zoai:sapientia.ualg.pt:10400.1/11382Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T20:02:54.214923Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Fine-scale spatial genetic structure and gene dispersal in Silene latifolia |
title |
Fine-scale spatial genetic structure and gene dispersal in Silene latifolia |
spellingShingle |
Fine-scale spatial genetic structure and gene dispersal in Silene latifolia Barluenga, M. Plant-population size Seed dispersal Pollen dispersal Autocorrelation analysis Dioica Caryophyllaceae Gynodioecious plant Chloroplast Dna Hadena-Bicruris F-Statistics Y-Chromosome |
title_short |
Fine-scale spatial genetic structure and gene dispersal in Silene latifolia |
title_full |
Fine-scale spatial genetic structure and gene dispersal in Silene latifolia |
title_fullStr |
Fine-scale spatial genetic structure and gene dispersal in Silene latifolia |
title_full_unstemmed |
Fine-scale spatial genetic structure and gene dispersal in Silene latifolia |
title_sort |
Fine-scale spatial genetic structure and gene dispersal in Silene latifolia |
author |
Barluenga, M. |
author_facet |
Barluenga, M. Austerlitz, F. Elzinga, J. A. Teixeira, S. Goudet, J. Bernasconi, G. |
author_role |
author |
author2 |
Austerlitz, F. Elzinga, J. A. Teixeira, S. Goudet, J. Bernasconi, G. |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
Sapientia |
dc.contributor.author.fl_str_mv |
Barluenga, M. Austerlitz, F. Elzinga, J. A. Teixeira, S. Goudet, J. Bernasconi, G. |
dc.subject.por.fl_str_mv |
Plant-population size Seed dispersal Pollen dispersal Autocorrelation analysis Dioica Caryophyllaceae Gynodioecious plant Chloroplast Dna Hadena-Bicruris F-Statistics Y-Chromosome |
topic |
Plant-population size Seed dispersal Pollen dispersal Autocorrelation analysis Dioica Caryophyllaceae Gynodioecious plant Chloroplast Dna Hadena-Bicruris F-Statistics Y-Chromosome |
description |
Plants are sessile organisms, often characterized by limited dispersal. Seeds and pollen are the critical stages for gene flow. Here we investigate spatial genetic structure, gene dispersal and the relative contribution of pollen vs seed in the movement of genes in a stable metapopulation of the white campion Silene latifolia within its native range. This short-lived perennial plant is dioecious, has gravity-dispersed seeds and moth-mediated pollination. Direct measures of pollen dispersal suggested that large populations receive more pollen than small isolated populations and that most gene flow occurs within tens of meters. However, these studies were performed in the newly colonized range (North America) where the specialist pollinator is absent. In the native range (Europe), gene dispersal could fall on a different spatial scale. We genotyped 258 individuals from large and small (15) subpopulations along a 60 km, elongated meta-population in Europe using six highly variable microsatellite markers, two X-linked and four autosomal. We found substantial genetic differentiation among subpopulations (global F(ST) = 0.11) and a general pattern of isolation by distance over the whole sampled area. Spatial autocorrelation revealed high relatedness among neighboring individuals over hundreds of meters. Estimates of gene dispersal revealed gene flow at the scale of tens of meters (5-30 m), similar to the newly colonized range. Contrary to expectations, estimates of dispersal based on X and autosomal markers showed very similar ranges, suggesting similar levels of pollen and seed dispersal. This may be explained by stochastic events of extensive seed dispersal in this area and limited pollen dispersal. Heredity (2011) 106, 13-24; doi:10.1038/hdy.2010.38; published online 14 April 2010 |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011-01 2011-01-01T00:00:00Z 2018-12-07T14:53:10Z |
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://hdl.handle.net/10400.1/11382 |
url |
http://hdl.handle.net/10400.1/11382 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
0018-067X 10.1038/hdy.2010.38 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Nature Publishing Group |
publisher.none.fl_str_mv |
Nature Publishing Group |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
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1799133263412854784 |