Exploring the intricate evolutionary history of the diploid-polyploid complexVeronica subsection Pentasepalae(Plantaginaceae)

[EN]Veronica subsection Pentasepalae is a diploid–polyploid complex of c. 20 species distributed in Eurasia and North Africa, in which species boundaries are difficult to determine. Here, we present the first comprehensive phylogenetic analysis of V. subsection Pentasepalae based on nucleotide seque...

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Detalles Bibliográficos
Autores: Rojas Andrés, Blanca M., Albach, Dirk C., Martínez Ortega, María Montserrat
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2015
País:España
Institución:Universidad de Salamanca (USAL)
Repositorio:GREDOS. Repositorio Institucional de la Universidad de Salamanca
OAI Identifier:oai:gredos.usal.es:10366/140863
Acceso en línea:http://hdl.handle.net/10366/140863
Access Level:acceso abierto
Palabra clave:Hybridization
Incomplete lineage sorting
ITS
Phylogenetic analysis
Plastid DNA
Polyploidy
Reticulate evolution
Taxonomy
Veronica
Genetic Code
2417.14 Genética Vegetal
código genético
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oai_identifier_str oai:gredos.usal.es:10366/140863
network_acronym_str ES
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repository_id_str
spelling Exploring the intricate evolutionary history of the diploid-polyploid complexVeronica subsection Pentasepalae(Plantaginaceae)Rojas Andrés, Blanca M.Albach, Dirk C.Martínez Ortega, María MontserratHybridizationIncomplete lineage sortingITSPhylogenetic analysisPlastid DNAPolyploidyReticulate evolutionTaxonomyVeronicaGenetic Code2417.14 Genética Vegetalcódigo genéticoVeronica[EN]Veronica subsection Pentasepalae is a diploid–polyploid complex of c. 20 species distributed in Eurasia and North Africa, in which species boundaries are difficult to determine. Here, we present the first comprehensive phylogenetic analysis of V. subsection Pentasepalae based on nucleotide sequences [internal transcribed spacer (ITS) and the plastid trnH-psbA and ycf6-psbM spacers] combined with ploidy estimations. Our results support the monophyly of the subsection. Five well-supported clades are recovered in the ITS sequence analyses, corresponding to broad geographical areas. The causes of the extensive incongruence found between the ITS and plastid DNA datasets, namely incomplete lineage sorting and/or hybridization and polyploidization, are discussed. Most of the diploids traditionally recognized based on morphological characters and one tetraploid are each recovered as monophyletic by the ITS sequence analyses. The Balkan species V. kindlii is resurrected. DNA ploidy level for V. teucrioides is reported here for the first time (2x). Diploid populations have been found for V. orbiculata, which was previously thought to be only tetraploid. Past contact in the amphi-Adriatic area between V. orsiniana and V. orbiculata is suggested. Finally, molecular analyses show that diploid V. jacquinii and diploid V. orbiculata are unrelated. This study contributes to our understanding of the evolutionary history of polyploid complexes, especially those in southern Europe, and highlights the importance of using multiple lines of evidence to investigate species boundaries in such actively diversifying groups.202020202015info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://hdl.handle.net/10366/140863reponame:GREDOS. Repositorio Institucional de la Universidad de Salamancainstname:Universidad de Salamanca (USAL)InglésAttribution-NonCommercial-NoDerivatives 4.0 Internacionalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessoai:gredos.usal.es:10366/1408632026-06-07T06:28:51Z
dc.title.none.fl_str_mv Exploring the intricate evolutionary history of the diploid-polyploid complexVeronica subsection Pentasepalae(Plantaginaceae)
title Exploring the intricate evolutionary history of the diploid-polyploid complexVeronica subsection Pentasepalae(Plantaginaceae)
spellingShingle Exploring the intricate evolutionary history of the diploid-polyploid complexVeronica subsection Pentasepalae(Plantaginaceae)
Rojas Andrés, Blanca M.
Hybridization
Incomplete lineage sorting
ITS
Phylogenetic analysis
Plastid DNA
Polyploidy
Reticulate evolution
Taxonomy
Veronica
Genetic Code
2417.14 Genética Vegetal
código genético
Veronica
title_short Exploring the intricate evolutionary history of the diploid-polyploid complexVeronica subsection Pentasepalae(Plantaginaceae)
title_full Exploring the intricate evolutionary history of the diploid-polyploid complexVeronica subsection Pentasepalae(Plantaginaceae)
title_fullStr Exploring the intricate evolutionary history of the diploid-polyploid complexVeronica subsection Pentasepalae(Plantaginaceae)
title_full_unstemmed Exploring the intricate evolutionary history of the diploid-polyploid complexVeronica subsection Pentasepalae(Plantaginaceae)
title_sort Exploring the intricate evolutionary history of the diploid-polyploid complexVeronica subsection Pentasepalae(Plantaginaceae)
dc.creator.none.fl_str_mv Rojas Andrés, Blanca M.
Albach, Dirk C.
Martínez Ortega, María Montserrat
author Rojas Andrés, Blanca M.
author_facet Rojas Andrés, Blanca M.
Albach, Dirk C.
Martínez Ortega, María Montserrat
author_role author
author2 Albach, Dirk C.
Martínez Ortega, María Montserrat
author2_role author
author
dc.subject.none.fl_str_mv Hybridization
Incomplete lineage sorting
ITS
Phylogenetic analysis
Plastid DNA
Polyploidy
Reticulate evolution
Taxonomy
Veronica
Genetic Code
2417.14 Genética Vegetal
código genético
Veronica
topic Hybridization
Incomplete lineage sorting
ITS
Phylogenetic analysis
Plastid DNA
Polyploidy
Reticulate evolution
Taxonomy
Veronica
Genetic Code
2417.14 Genética Vegetal
código genético
Veronica
description [EN]Veronica subsection Pentasepalae is a diploid–polyploid complex of c. 20 species distributed in Eurasia and North Africa, in which species boundaries are difficult to determine. Here, we present the first comprehensive phylogenetic analysis of V. subsection Pentasepalae based on nucleotide sequences [internal transcribed spacer (ITS) and the plastid trnH-psbA and ycf6-psbM spacers] combined with ploidy estimations. Our results support the monophyly of the subsection. Five well-supported clades are recovered in the ITS sequence analyses, corresponding to broad geographical areas. The causes of the extensive incongruence found between the ITS and plastid DNA datasets, namely incomplete lineage sorting and/or hybridization and polyploidization, are discussed. Most of the diploids traditionally recognized based on morphological characters and one tetraploid are each recovered as monophyletic by the ITS sequence analyses. The Balkan species V. kindlii is resurrected. DNA ploidy level for V. teucrioides is reported here for the first time (2x). Diploid populations have been found for V. orbiculata, which was previously thought to be only tetraploid. Past contact in the amphi-Adriatic area between V. orsiniana and V. orbiculata is suggested. Finally, molecular analyses show that diploid V. jacquinii and diploid V. orbiculata are unrelated. This study contributes to our understanding of the evolutionary history of polyploid complexes, especially those in southern Europe, and highlights the importance of using multiple lines of evidence to investigate species boundaries in such actively diversifying groups.
publishDate 2015
dc.date.none.fl_str_mv 2015
2020
2020
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10366/140863
url http://hdl.handle.net/10366/140863
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.rights.none.fl_str_mv Attribution-NonCommercial-NoDerivatives 4.0 Internacional
http://creativecommons.org/licenses/by-nc-nd/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Attribution-NonCommercial-NoDerivatives 4.0 Internacional
http://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:GREDOS. Repositorio Institucional de la Universidad de Salamanca
instname:Universidad de Salamanca (USAL)
instname_str Universidad de Salamanca (USAL)
reponame_str GREDOS. Repositorio Institucional de la Universidad de Salamanca
collection GREDOS. Repositorio Institucional de la Universidad de Salamanca
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,198674

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