Genetic diversity within and genetic differentiation between blooms of a microalgal species

The field of genetic diversity in protists, particularly phytoplankton, is under expansion. However, little is known regarding variation in genetic diversity within populations over time. The aim of our study was to investigate intrapopulation genetic diversity and genetic differentiation in the fre...

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Authors: Lebret, Karen, Kritzberg, S., Figueroa, Rosa Isabel, Rengefors, Karin
Format: article
Status:Versión aceptada para publicación
Publication Date:2012
Country:España
Institution:Consejo Superior de Investigaciones Científicas (CSIC)
Repository:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/323620
Online Access:http://hdl.handle.net/10261/323620
Access Level:Open access
Keyword:Medio Marino
Gonyostomum semen
Centro Oceanográfico de Vigo
Genetic diversity
AFLP
protists
genetic diversity
algal blooms
phytoplankton
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oai_identifier_str oai:digital.csic.es:10261/323620
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repository_id_str
spelling Genetic diversity within and genetic differentiation between blooms of a microalgal speciesLebret, KarenKritzberg, S.Figueroa, Rosa IsabelRengefors, KarinMedio MarinoGonyostomum semenCentro Oceanográfico de VigoGenetic diversityAFLPprotistsgenetic diversityalgal bloomsphytoplanktonThe field of genetic diversity in protists, particularly phytoplankton, is under expansion. However, little is known regarding variation in genetic diversity within populations over time. The aim of our study was to investigate intrapopulation genetic diversity and genetic differentiation in the freshwater bloom-forming microalga Gonyostomum semen (Raphidophyceae). The study covered a 2-year period including all phases of the bloom. Amplified fragment length polymorphism (AFLP) was used to determine the genetic structure and diversity of the population. Our results showed a significant differentiation between samples collected during the two blooms from consecutive years. Also, an increase of gene diversity and a loss of differentiation among sampling dates were observed over time within a single bloom. The latter observations may reflect the continuous germination of cysts from the sediment. The life cycle characteristics of G. semen, particularly reproduction and recruitment, most likely explain a high proportion of the observed variation. This study highlights the importance of the life cycle for the intraspecific genetic diversity of microbial species, which alternates between sexual and asexual reproduction.SI202320232012info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Postprintinfo:eu-repo/semantics/acceptedVersionhttp://hdl.handle.net/10261/323620reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)InglésCentro Oceanográfico de Vigoinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3236202026-05-22T06:33:51Z
dc.title.none.fl_str_mv Genetic diversity within and genetic differentiation between blooms of a microalgal species
title Genetic diversity within and genetic differentiation between blooms of a microalgal species
spellingShingle Genetic diversity within and genetic differentiation between blooms of a microalgal species
Lebret, Karen
Medio Marino
Gonyostomum semen
Centro Oceanográfico de Vigo
Genetic diversity
AFLP
protists
genetic diversity
algal blooms
phytoplankton
title_short Genetic diversity within and genetic differentiation between blooms of a microalgal species
title_full Genetic diversity within and genetic differentiation between blooms of a microalgal species
title_fullStr Genetic diversity within and genetic differentiation between blooms of a microalgal species
title_full_unstemmed Genetic diversity within and genetic differentiation between blooms of a microalgal species
title_sort Genetic diversity within and genetic differentiation between blooms of a microalgal species
dc.creator.none.fl_str_mv Lebret, Karen
Kritzberg, S.
Figueroa, Rosa Isabel
Rengefors, Karin
author Lebret, Karen
author_facet Lebret, Karen
Kritzberg, S.
Figueroa, Rosa Isabel
Rengefors, Karin
author_role author
author2 Kritzberg, S.
Figueroa, Rosa Isabel
Rengefors, Karin
author2_role author
author
author
dc.subject.none.fl_str_mv Medio Marino
Gonyostomum semen
Centro Oceanográfico de Vigo
Genetic diversity
AFLP
protists
genetic diversity
algal blooms
phytoplankton
topic Medio Marino
Gonyostomum semen
Centro Oceanográfico de Vigo
Genetic diversity
AFLP
protists
genetic diversity
algal blooms
phytoplankton
description The field of genetic diversity in protists, particularly phytoplankton, is under expansion. However, little is known regarding variation in genetic diversity within populations over time. The aim of our study was to investigate intrapopulation genetic diversity and genetic differentiation in the freshwater bloom-forming microalga Gonyostomum semen (Raphidophyceae). The study covered a 2-year period including all phases of the bloom. Amplified fragment length polymorphism (AFLP) was used to determine the genetic structure and diversity of the population. Our results showed a significant differentiation between samples collected during the two blooms from consecutive years. Also, an increase of gene diversity and a loss of differentiation among sampling dates were observed over time within a single bloom. The latter observations may reflect the continuous germination of cysts from the sediment. The life cycle characteristics of G. semen, particularly reproduction and recruitment, most likely explain a high proportion of the observed variation. This study highlights the importance of the life cycle for the intraspecific genetic diversity of microbial species, which alternates between sexual and asexual reproduction.
publishDate 2012
dc.date.none.fl_str_mv 2012
2023
2023
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Postprint
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/323620
url http://hdl.handle.net/10261/323620
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Centro Oceanográfico de Vigo
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,811543

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