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
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/98858
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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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1844613783933157376 |
score |
13.070432 |