Is it all Phacelia pinnatifida? Molecular delimitations and taxonomic revision of Phacelia sect. Glandulosae in South America based on ddRADseq

Autores
Vasile, Maria Anna; Bohnert, Tim; O'Leary, Nataly Cristina; Weigend, Maximilian
Año de publicación
2024
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The Phacelia sect. Glandulosae, with ca. 62 taxa, is the most diverse of the 11 sections of the genus Phacelia (Hydrophyllaceae). The family is largely restricted to North and Central America, but the genus Phacelia has an amphitropical distribution with nine species reported from western South America, five of which have been assigned to P. sect. Glandulosae. These species are found in arid to semi-arid Andean habitats between 1000 and 5000 m.a.s.l. Species delimitation has long been confounded for this plant group in South America by some degree of taxonomic chaos—lack of typifications, dozens of synonyms, different names used for the same taxon between different countries—and poor representation in molecular phylogenies. Here, we try to improve our understanding by employing a ddRADseq strategy to investigate phylogenetic relationships of all South American representatives of P. sect. Glandulosae based on a total of 33 sampled specimens. Both ML and species tree inference analyses of the ddRADseq data resulted in a well resolved topology. All five species currently recognized in P. sect. Glandulosae in South America form a highly supported monophylum including P. nana, previously considered as belonging to Phacelia sect. Euglypta. However, the currently recognized morphospecies form a clade with very short branch lengths indicating coalescence processes at the level of population, except for P. artemisioides which is clearly sister to the rest. Additionally, different morphospecies and ecotypes are largely retrieved as poly- and/or paraphyletic. Based on these results and on re-evaluation of the morphological characters traditionally used to delineate species within sect. Glandulosae, we argue that these characters are of limited diagnostic value. We recommend recognizing only two South American species within this section: polymorphic P. pinnatifida and its closely related sister species P. artemisioides. A revised formal taxonomy is provided.
Fil: Vasile, Maria Anna. Universitat Bonn; Alemania
Fil: Bohnert, Tim. Universitat Bonn; Alemania
Fil: O'Leary, Nataly Cristina. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Botánica Darwinion. Academia Nacional de Ciencias Exactas, Físicas y Naturales. Instituto de Botánica Darwinion; Argentina
Fil: Weigend, Maximilian. Universitat Bonn; Alemania
Materia
AMERICAN AMPHITROPICAL DISJUNCTION
ANDES
BORAGINALES
HYDROPHYLLACEAE
SPECIES DELIMITATION
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/264776

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spelling Is it all Phacelia pinnatifida? Molecular delimitations and taxonomic revision of Phacelia sect. Glandulosae in South America based on ddRADseqVasile, Maria AnnaBohnert, TimO'Leary, Nataly CristinaWeigend, MaximilianAMERICAN AMPHITROPICAL DISJUNCTIONANDESBORAGINALESHYDROPHYLLACEAESPECIES DELIMITATIONhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1The Phacelia sect. Glandulosae, with ca. 62 taxa, is the most diverse of the 11 sections of the genus Phacelia (Hydrophyllaceae). The family is largely restricted to North and Central America, but the genus Phacelia has an amphitropical distribution with nine species reported from western South America, five of which have been assigned to P. sect. Glandulosae. These species are found in arid to semi-arid Andean habitats between 1000 and 5000 m.a.s.l. Species delimitation has long been confounded for this plant group in South America by some degree of taxonomic chaos—lack of typifications, dozens of synonyms, different names used for the same taxon between different countries—and poor representation in molecular phylogenies. Here, we try to improve our understanding by employing a ddRADseq strategy to investigate phylogenetic relationships of all South American representatives of P. sect. Glandulosae based on a total of 33 sampled specimens. Both ML and species tree inference analyses of the ddRADseq data resulted in a well resolved topology. All five species currently recognized in P. sect. Glandulosae in South America form a highly supported monophylum including P. nana, previously considered as belonging to Phacelia sect. Euglypta. However, the currently recognized morphospecies form a clade with very short branch lengths indicating coalescence processes at the level of population, except for P. artemisioides which is clearly sister to the rest. Additionally, different morphospecies and ecotypes are largely retrieved as poly- and/or paraphyletic. Based on these results and on re-evaluation of the morphological characters traditionally used to delineate species within sect. Glandulosae, we argue that these characters are of limited diagnostic value. We recommend recognizing only two South American species within this section: polymorphic P. pinnatifida and its closely related sister species P. artemisioides. A revised formal taxonomy is provided.Fil: Vasile, Maria Anna. Universitat Bonn; AlemaniaFil: Bohnert, Tim. Universitat Bonn; AlemaniaFil: O'Leary, Nataly Cristina. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Botánica Darwinion. Academia Nacional de Ciencias Exactas, Físicas y Naturales. Instituto de Botánica Darwinion; ArgentinaFil: Weigend, Maximilian. Universitat Bonn; AlemaniaInternational Association for Plant Taxonomy2024-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/264776Vasile, Maria Anna; Bohnert, Tim; O'Leary, Nataly Cristina; Weigend, Maximilian; Is it all Phacelia pinnatifida? Molecular delimitations and taxonomic revision of Phacelia sect. Glandulosae in South America based on ddRADseq; International Association for Plant Taxonomy; Taxon; 73; 6; 12-2024; 1437-14590040-0262CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/full/10.1002/tax.13265info:eu-repo/semantics/altIdentifier/doi/10.1002/tax.13265info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:59:48Zoai:ri.conicet.gov.ar:11336/264776instacron: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:34982025-09-29 09:59:48.44CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Is it all Phacelia pinnatifida? Molecular delimitations and taxonomic revision of Phacelia sect. Glandulosae in South America based on ddRADseq
title Is it all Phacelia pinnatifida? Molecular delimitations and taxonomic revision of Phacelia sect. Glandulosae in South America based on ddRADseq
spellingShingle Is it all Phacelia pinnatifida? Molecular delimitations and taxonomic revision of Phacelia sect. Glandulosae in South America based on ddRADseq
Vasile, Maria Anna
AMERICAN AMPHITROPICAL DISJUNCTION
ANDES
BORAGINALES
HYDROPHYLLACEAE
SPECIES DELIMITATION
title_short Is it all Phacelia pinnatifida? Molecular delimitations and taxonomic revision of Phacelia sect. Glandulosae in South America based on ddRADseq
title_full Is it all Phacelia pinnatifida? Molecular delimitations and taxonomic revision of Phacelia sect. Glandulosae in South America based on ddRADseq
title_fullStr Is it all Phacelia pinnatifida? Molecular delimitations and taxonomic revision of Phacelia sect. Glandulosae in South America based on ddRADseq
title_full_unstemmed Is it all Phacelia pinnatifida? Molecular delimitations and taxonomic revision of Phacelia sect. Glandulosae in South America based on ddRADseq
title_sort Is it all Phacelia pinnatifida? Molecular delimitations and taxonomic revision of Phacelia sect. Glandulosae in South America based on ddRADseq
dc.creator.none.fl_str_mv Vasile, Maria Anna
Bohnert, Tim
O'Leary, Nataly Cristina
Weigend, Maximilian
author Vasile, Maria Anna
author_facet Vasile, Maria Anna
Bohnert, Tim
O'Leary, Nataly Cristina
Weigend, Maximilian
author_role author
author2 Bohnert, Tim
O'Leary, Nataly Cristina
Weigend, Maximilian
author2_role author
author
author
dc.subject.none.fl_str_mv AMERICAN AMPHITROPICAL DISJUNCTION
ANDES
BORAGINALES
HYDROPHYLLACEAE
SPECIES DELIMITATION
topic AMERICAN AMPHITROPICAL DISJUNCTION
ANDES
BORAGINALES
HYDROPHYLLACEAE
SPECIES DELIMITATION
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The Phacelia sect. Glandulosae, with ca. 62 taxa, is the most diverse of the 11 sections of the genus Phacelia (Hydrophyllaceae). The family is largely restricted to North and Central America, but the genus Phacelia has an amphitropical distribution with nine species reported from western South America, five of which have been assigned to P. sect. Glandulosae. These species are found in arid to semi-arid Andean habitats between 1000 and 5000 m.a.s.l. Species delimitation has long been confounded for this plant group in South America by some degree of taxonomic chaos—lack of typifications, dozens of synonyms, different names used for the same taxon between different countries—and poor representation in molecular phylogenies. Here, we try to improve our understanding by employing a ddRADseq strategy to investigate phylogenetic relationships of all South American representatives of P. sect. Glandulosae based on a total of 33 sampled specimens. Both ML and species tree inference analyses of the ddRADseq data resulted in a well resolved topology. All five species currently recognized in P. sect. Glandulosae in South America form a highly supported monophylum including P. nana, previously considered as belonging to Phacelia sect. Euglypta. However, the currently recognized morphospecies form a clade with very short branch lengths indicating coalescence processes at the level of population, except for P. artemisioides which is clearly sister to the rest. Additionally, different morphospecies and ecotypes are largely retrieved as poly- and/or paraphyletic. Based on these results and on re-evaluation of the morphological characters traditionally used to delineate species within sect. Glandulosae, we argue that these characters are of limited diagnostic value. We recommend recognizing only two South American species within this section: polymorphic P. pinnatifida and its closely related sister species P. artemisioides. A revised formal taxonomy is provided.
Fil: Vasile, Maria Anna. Universitat Bonn; Alemania
Fil: Bohnert, Tim. Universitat Bonn; Alemania
Fil: O'Leary, Nataly Cristina. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Botánica Darwinion. Academia Nacional de Ciencias Exactas, Físicas y Naturales. Instituto de Botánica Darwinion; Argentina
Fil: Weigend, Maximilian. Universitat Bonn; Alemania
description The Phacelia sect. Glandulosae, with ca. 62 taxa, is the most diverse of the 11 sections of the genus Phacelia (Hydrophyllaceae). The family is largely restricted to North and Central America, but the genus Phacelia has an amphitropical distribution with nine species reported from western South America, five of which have been assigned to P. sect. Glandulosae. These species are found in arid to semi-arid Andean habitats between 1000 and 5000 m.a.s.l. Species delimitation has long been confounded for this plant group in South America by some degree of taxonomic chaos—lack of typifications, dozens of synonyms, different names used for the same taxon between different countries—and poor representation in molecular phylogenies. Here, we try to improve our understanding by employing a ddRADseq strategy to investigate phylogenetic relationships of all South American representatives of P. sect. Glandulosae based on a total of 33 sampled specimens. Both ML and species tree inference analyses of the ddRADseq data resulted in a well resolved topology. All five species currently recognized in P. sect. Glandulosae in South America form a highly supported monophylum including P. nana, previously considered as belonging to Phacelia sect. Euglypta. However, the currently recognized morphospecies form a clade with very short branch lengths indicating coalescence processes at the level of population, except for P. artemisioides which is clearly sister to the rest. Additionally, different morphospecies and ecotypes are largely retrieved as poly- and/or paraphyletic. Based on these results and on re-evaluation of the morphological characters traditionally used to delineate species within sect. Glandulosae, we argue that these characters are of limited diagnostic value. We recommend recognizing only two South American species within this section: polymorphic P. pinnatifida and its closely related sister species P. artemisioides. A revised formal taxonomy is provided.
publishDate 2024
dc.date.none.fl_str_mv 2024-12
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
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info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/264776
Vasile, Maria Anna; Bohnert, Tim; O'Leary, Nataly Cristina; Weigend, Maximilian; Is it all Phacelia pinnatifida? Molecular delimitations and taxonomic revision of Phacelia sect. Glandulosae in South America based on ddRADseq; International Association for Plant Taxonomy; Taxon; 73; 6; 12-2024; 1437-1459
0040-0262
CONICET Digital
CONICET
url http://hdl.handle.net/11336/264776
identifier_str_mv Vasile, Maria Anna; Bohnert, Tim; O'Leary, Nataly Cristina; Weigend, Maximilian; Is it all Phacelia pinnatifida? Molecular delimitations and taxonomic revision of Phacelia sect. Glandulosae in South America based on ddRADseq; International Association for Plant Taxonomy; Taxon; 73; 6; 12-2024; 1437-1459
0040-0262
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://onlinelibrary.wiley.com/doi/full/10.1002/tax.13265
info:eu-repo/semantics/altIdentifier/doi/10.1002/tax.13265
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv International Association for Plant Taxonomy
publisher.none.fl_str_mv International Association for Plant Taxonomy
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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