Wanted dead or alive (probably dead): Stem group Polytrichaceae

Autores
Bippus, Alexander C.; Escapa, Ignacio Hernán; Tomescu, Alexandru M. F.
Año de publicación
2018
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Premise of the Study: The Polytrichaceae are a widespread and morphologically isolated moss lineage. Early attempts to characterize phylogenetic relationships within the family suggested that morphology is not phylogenetically informative. Two well-characterized fossils similar to basal and derived Polytrichaceae (Meantoinea alophosioides and Eopolytrichum antiquum, respectively), are known from Cretaceous rocks. To assess the phylogenetic positions of these fossils and compare hypotheses of relationships recovered using molecular vs. morphological methods, we conducted a comprehensive morphology-based phylogenetic study of Polytrichaceae. Methods: We evaluated the phylogenetic relationships of Polytrichaceae using a data set of 100 morphological characters (including 11 continuously varying traits codified as continuous characters) scored for 44 species of acrocarpous mosses and parsimony as the optimality criterion. Key Results: Continuous characters significantly increased the resolving power of the analyses. The overall ingroup topology was sensitive to rooting as determined by outgroup selection, with some analyses yielding results that were incongruent with those of molecular studies. Both fossils had stable phylogenetic relationships, irrespective of outgroup sampling. Conclusions: Our results suggest that morphology is useful in resolving phylogenetic relationships in the Polytrichaceae, if both discrete and continuous characters are used. However, our rooting experiments demonstrate that there is no superior way to root analyses and indicate that relationships within the family are best evaluated using unrooted networks without outgroup taxa. These rooting problems suggest that additional information is needed to understand the phylogenetic relationships of Polytrichaceae. Such additional information could come from fossils of stem group polytrichaceous mosses, which await discovery.
Fil: Bippus, Alexander C.. Humboldt State University; Estados Unidos
Fil: Escapa, Ignacio Hernán. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Museo Paleontológico Egidio Feruglio; Argentina
Fil: Tomescu, Alexandru M. F.. Humboldt State University; Estados Unidos
Materia
BRYOPHYTA
CONTINUOUS CHARACTERS
FOSSIL
MORPHOLOGY
MOSS
OUTGROUP
PHYLOGENY
POLYTRICHACEAE
STEM GROUP
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/98858

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network_name_str CONICET Digital (CONICET)
spelling Wanted dead or alive (probably dead): Stem group PolytrichaceaeBippus, Alexander C.Escapa, Ignacio HernánTomescu, Alexandru M. F.BRYOPHYTACONTINUOUS CHARACTERSFOSSILMORPHOLOGYMOSSOUTGROUPPHYLOGENYPOLYTRICHACEAESTEM GROUPhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Premise of the Study: The Polytrichaceae are a widespread and morphologically isolated moss lineage. Early attempts to characterize phylogenetic relationships within the family suggested that morphology is not phylogenetically informative. Two well-characterized fossils similar to basal and derived Polytrichaceae (Meantoinea alophosioides and Eopolytrichum antiquum, respectively), are known from Cretaceous rocks. To assess the phylogenetic positions of these fossils and compare hypotheses of relationships recovered using molecular vs. morphological methods, we conducted a comprehensive morphology-based phylogenetic study of Polytrichaceae. Methods: We evaluated the phylogenetic relationships of Polytrichaceae using a data set of 100 morphological characters (including 11 continuously varying traits codified as continuous characters) scored for 44 species of acrocarpous mosses and parsimony as the optimality criterion. Key Results: Continuous characters significantly increased the resolving power of the analyses. The overall ingroup topology was sensitive to rooting as determined by outgroup selection, with some analyses yielding results that were incongruent with those of molecular studies. Both fossils had stable phylogenetic relationships, irrespective of outgroup sampling. Conclusions: Our results suggest that morphology is useful in resolving phylogenetic relationships in the Polytrichaceae, if both discrete and continuous characters are used. However, our rooting experiments demonstrate that there is no superior way to root analyses and indicate that relationships within the family are best evaluated using unrooted networks without outgroup taxa. These rooting problems suggest that additional information is needed to understand the phylogenetic relationships of Polytrichaceae. Such additional information could come from fossils of stem group polytrichaceous mosses, which await discovery.Fil: Bippus, Alexander C.. Humboldt State University; Estados UnidosFil: Escapa, Ignacio Hernán. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Museo Paleontológico Egidio Feruglio; ArgentinaFil: Tomescu, Alexandru M. F.. Humboldt State University; Estados UnidosBotanical Society of America2018-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/98858Bippus, Alexander C.; Escapa, Ignacio Hernán; Tomescu, Alexandru M. F.; Wanted dead or alive (probably dead): Stem group Polytrichaceae; Botanical Society of America; American Journal of Botany; 105; 8; 8-2018; 1243-12630002-9122CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1002/ajb2.1096info:eu-repo/semantics/altIdentifier/url/https://bsapubs.onlinelibrary.wiley.com/doi/full/10.1002/ajb2.1096info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:00:21Zoai:ri.conicet.gov.ar:11336/98858instacron: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 10:00:22.103CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Wanted dead or alive (probably dead): Stem group Polytrichaceae
title Wanted dead or alive (probably dead): Stem group Polytrichaceae
spellingShingle Wanted dead or alive (probably dead): Stem group Polytrichaceae
Bippus, Alexander C.
BRYOPHYTA
CONTINUOUS CHARACTERS
FOSSIL
MORPHOLOGY
MOSS
OUTGROUP
PHYLOGENY
POLYTRICHACEAE
STEM GROUP
title_short Wanted dead or alive (probably dead): Stem group Polytrichaceae
title_full Wanted dead or alive (probably dead): Stem group Polytrichaceae
title_fullStr Wanted dead or alive (probably dead): Stem group Polytrichaceae
title_full_unstemmed Wanted dead or alive (probably dead): Stem group Polytrichaceae
title_sort Wanted dead or alive (probably dead): Stem group Polytrichaceae
dc.creator.none.fl_str_mv Bippus, Alexander C.
Escapa, Ignacio Hernán
Tomescu, Alexandru M. F.
author Bippus, Alexander C.
author_facet Bippus, Alexander C.
Escapa, Ignacio Hernán
Tomescu, Alexandru M. F.
author_role author
author2 Escapa, Ignacio Hernán
Tomescu, Alexandru M. F.
author2_role author
author
dc.subject.none.fl_str_mv BRYOPHYTA
CONTINUOUS CHARACTERS
FOSSIL
MORPHOLOGY
MOSS
OUTGROUP
PHYLOGENY
POLYTRICHACEAE
STEM GROUP
topic BRYOPHYTA
CONTINUOUS CHARACTERS
FOSSIL
MORPHOLOGY
MOSS
OUTGROUP
PHYLOGENY
POLYTRICHACEAE
STEM GROUP
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Premise of the Study: The Polytrichaceae are a widespread and morphologically isolated moss lineage. Early attempts to characterize phylogenetic relationships within the family suggested that morphology is not phylogenetically informative. Two well-characterized fossils similar to basal and derived Polytrichaceae (Meantoinea alophosioides and Eopolytrichum antiquum, respectively), are known from Cretaceous rocks. To assess the phylogenetic positions of these fossils and compare hypotheses of relationships recovered using molecular vs. morphological methods, we conducted a comprehensive morphology-based phylogenetic study of Polytrichaceae. Methods: We evaluated the phylogenetic relationships of Polytrichaceae using a data set of 100 morphological characters (including 11 continuously varying traits codified as continuous characters) scored for 44 species of acrocarpous mosses and parsimony as the optimality criterion. Key Results: Continuous characters significantly increased the resolving power of the analyses. The overall ingroup topology was sensitive to rooting as determined by outgroup selection, with some analyses yielding results that were incongruent with those of molecular studies. Both fossils had stable phylogenetic relationships, irrespective of outgroup sampling. Conclusions: Our results suggest that morphology is useful in resolving phylogenetic relationships in the Polytrichaceae, if both discrete and continuous characters are used. However, our rooting experiments demonstrate that there is no superior way to root analyses and indicate that relationships within the family are best evaluated using unrooted networks without outgroup taxa. These rooting problems suggest that additional information is needed to understand the phylogenetic relationships of Polytrichaceae. Such additional information could come from fossils of stem group polytrichaceous mosses, which await discovery.
Fil: Bippus, Alexander C.. Humboldt State University; Estados Unidos
Fil: Escapa, Ignacio Hernán. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Museo Paleontológico Egidio Feruglio; Argentina
Fil: Tomescu, Alexandru M. F.. Humboldt State University; Estados Unidos
description Premise of the Study: The Polytrichaceae are a widespread and morphologically isolated moss lineage. Early attempts to characterize phylogenetic relationships within the family suggested that morphology is not phylogenetically informative. Two well-characterized fossils similar to basal and derived Polytrichaceae (Meantoinea alophosioides and Eopolytrichum antiquum, respectively), are known from Cretaceous rocks. To assess the phylogenetic positions of these fossils and compare hypotheses of relationships recovered using molecular vs. morphological methods, we conducted a comprehensive morphology-based phylogenetic study of Polytrichaceae. Methods: We evaluated the phylogenetic relationships of Polytrichaceae using a data set of 100 morphological characters (including 11 continuously varying traits codified as continuous characters) scored for 44 species of acrocarpous mosses and parsimony as the optimality criterion. Key Results: Continuous characters significantly increased the resolving power of the analyses. The overall ingroup topology was sensitive to rooting as determined by outgroup selection, with some analyses yielding results that were incongruent with those of molecular studies. Both fossils had stable phylogenetic relationships, irrespective of outgroup sampling. Conclusions: Our results suggest that morphology is useful in resolving phylogenetic relationships in the Polytrichaceae, if both discrete and continuous characters are used. However, our rooting experiments demonstrate that there is no superior way to root analyses and indicate that relationships within the family are best evaluated using unrooted networks without outgroup taxa. These rooting problems suggest that additional information is needed to understand the phylogenetic relationships of Polytrichaceae. Such additional information could come from fossils of stem group polytrichaceous mosses, which await discovery.
publishDate 2018
dc.date.none.fl_str_mv 2018-08
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/98858
Bippus, Alexander C.; Escapa, Ignacio Hernán; Tomescu, Alexandru M. F.; Wanted dead or alive (probably dead): Stem group Polytrichaceae; Botanical Society of America; American Journal of Botany; 105; 8; 8-2018; 1243-1263
0002-9122
CONICET Digital
CONICET
url http://hdl.handle.net/11336/98858
identifier_str_mv Bippus, Alexander C.; Escapa, Ignacio Hernán; Tomescu, Alexandru M. F.; Wanted dead or alive (probably dead): Stem group Polytrichaceae; Botanical Society of America; American Journal of Botany; 105; 8; 8-2018; 1243-1263
0002-9122
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1002/ajb2.1096
info:eu-repo/semantics/altIdentifier/url/https://bsapubs.onlinelibrary.wiley.com/doi/full/10.1002/ajb2.1096
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Botanical Society of America
publisher.none.fl_str_mv Botanical Society of America
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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