Revision of Batrachospermum section Macrospora (Batrachospermales, Rhodophyta) with the establishment of the new genus Montagnia
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1080/00318884.2019.1624143 http://hdl.handle.net/11449/196400 |
Resumo: | To resolve the paraphyly of Batrachospermum, the sections of the genus have been methodically investigated using DNA sequence data and morphology; this has resulted in the raising of many sections to genus status. Phylogenetic analyses of combined rbcL and COI-5P showed Batrachospermum section Macrospora to be a well-supported clade. We propose Montagnia gen. nov. Montagnia is distinguished from other sections or genera of the Batrachospermales by the following characters: plants irregularly branched; carpogonial branches long and straight and well differentiated from fascicles, bearing involucral filaments in a crown pattern; enlarged pit connections in the cells of carpogonial branches; and pedunculate carposporophytes with large carposporangia. Within the new genus, we re-evaluated the characters used to circumscribe species by examining type specimens as well as samples from North and South America. Of the three currently accepted species attributable to Montagnia, we recognised two species: M. macrospora-type species (proposed synonyms Batrachospermum equisetifolium, B. hypogynum and B. macrosporum) and M. australis (synonym Batrachospermum australe). Morphological characters did not distinguish the two species due to variation within and among samples. The two species can be differentiated only using DNA sequence data and geographic distribution. Montagnia australis is restricted to North America; whereas, M. macrospora is a widespread pantropical species occurring in South America and Asia. Although the intraspecific divergence observed in M. macrospora is the highest reported for members of Batrachospermales, species delimitation methods did not suggest that more than one species is justified. |
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Revision of Batrachospermum section Macrospora (Batrachospermales, Rhodophyta) with the establishment of the new genus MontagniaBatrachospermalesBiogeographyCOI-5PFreshwater red algaeMolecular systematicsMorphologyrbcL geneRhodophytaTaxonomyTo resolve the paraphyly of Batrachospermum, the sections of the genus have been methodically investigated using DNA sequence data and morphology; this has resulted in the raising of many sections to genus status. Phylogenetic analyses of combined rbcL and COI-5P showed Batrachospermum section Macrospora to be a well-supported clade. We propose Montagnia gen. nov. Montagnia is distinguished from other sections or genera of the Batrachospermales by the following characters: plants irregularly branched; carpogonial branches long and straight and well differentiated from fascicles, bearing involucral filaments in a crown pattern; enlarged pit connections in the cells of carpogonial branches; and pedunculate carposporophytes with large carposporangia. Within the new genus, we re-evaluated the characters used to circumscribe species by examining type specimens as well as samples from North and South America. Of the three currently accepted species attributable to Montagnia, we recognised two species: M. macrospora-type species (proposed synonyms Batrachospermum equisetifolium, B. hypogynum and B. macrosporum) and M. australis (synonym Batrachospermum australe). Morphological characters did not distinguish the two species due to variation within and among samples. The two species can be differentiated only using DNA sequence data and geographic distribution. Montagnia australis is restricted to North America; whereas, M. macrospora is a widespread pantropical species occurring in South America and Asia. Although the intraspecific divergence observed in M. macrospora is the highest reported for members of Batrachospermales, species delimitation methods did not suggest that more than one species is justified.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)NSFSao Paulo State Univ, Zool & Bot Dept, BR-15054000 Sao Paulo, BrazilUniv Hawaii Manoa, Bot Dept, 3190 Maile Way, Honolulu, HI 96822 USAOhio Univ, Dept Environm & Plant Biol, Porter Hall, Athens, OH 45701 USASao Paulo State Univ, Zool & Bot Dept, BR-15054000 Sao Paulo, BrazilFAPESP: 2016/07808-1FAPESP: 2012/06848-9NSF: DEB 1655230Taylor & Francis LtdUniversidade Estadual Paulista (Unesp)Univ Hawaii ManoaOhio UnivNecchi, Orlando [UNESP]Garcia Fo, Auro Silva [UNESP]Paiano, Monica O. [UNESP]Vis, Morgan L.2020-12-10T19:43:35Z2020-12-10T19:43:35Z2019-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article582-591http://dx.doi.org/10.1080/00318884.2019.1624143Phycologia. Abingdon: Taylor & Francis Ltd, v. 58, n. 6, p. 582-591, 2019.0031-8884http://hdl.handle.net/11449/19640010.1080/00318884.2019.1624143WOS:000502045900001Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengPhycologiainfo:eu-repo/semantics/openAccess2021-10-22T20:56:32Zoai:repositorio.unesp.br:11449/196400Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T16:25:02.743681Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Revision of Batrachospermum section Macrospora (Batrachospermales, Rhodophyta) with the establishment of the new genus Montagnia |
title |
Revision of Batrachospermum section Macrospora (Batrachospermales, Rhodophyta) with the establishment of the new genus Montagnia |
spellingShingle |
Revision of Batrachospermum section Macrospora (Batrachospermales, Rhodophyta) with the establishment of the new genus Montagnia Necchi, Orlando [UNESP] Batrachospermales Biogeography COI-5P Freshwater red algae Molecular systematics Morphology rbcL gene Rhodophyta Taxonomy |
title_short |
Revision of Batrachospermum section Macrospora (Batrachospermales, Rhodophyta) with the establishment of the new genus Montagnia |
title_full |
Revision of Batrachospermum section Macrospora (Batrachospermales, Rhodophyta) with the establishment of the new genus Montagnia |
title_fullStr |
Revision of Batrachospermum section Macrospora (Batrachospermales, Rhodophyta) with the establishment of the new genus Montagnia |
title_full_unstemmed |
Revision of Batrachospermum section Macrospora (Batrachospermales, Rhodophyta) with the establishment of the new genus Montagnia |
title_sort |
Revision of Batrachospermum section Macrospora (Batrachospermales, Rhodophyta) with the establishment of the new genus Montagnia |
author |
Necchi, Orlando [UNESP] |
author_facet |
Necchi, Orlando [UNESP] Garcia Fo, Auro Silva [UNESP] Paiano, Monica O. [UNESP] Vis, Morgan L. |
author_role |
author |
author2 |
Garcia Fo, Auro Silva [UNESP] Paiano, Monica O. [UNESP] Vis, Morgan L. |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Univ Hawaii Manoa Ohio Univ |
dc.contributor.author.fl_str_mv |
Necchi, Orlando [UNESP] Garcia Fo, Auro Silva [UNESP] Paiano, Monica O. [UNESP] Vis, Morgan L. |
dc.subject.por.fl_str_mv |
Batrachospermales Biogeography COI-5P Freshwater red algae Molecular systematics Morphology rbcL gene Rhodophyta Taxonomy |
topic |
Batrachospermales Biogeography COI-5P Freshwater red algae Molecular systematics Morphology rbcL gene Rhodophyta Taxonomy |
description |
To resolve the paraphyly of Batrachospermum, the sections of the genus have been methodically investigated using DNA sequence data and morphology; this has resulted in the raising of many sections to genus status. Phylogenetic analyses of combined rbcL and COI-5P showed Batrachospermum section Macrospora to be a well-supported clade. We propose Montagnia gen. nov. Montagnia is distinguished from other sections or genera of the Batrachospermales by the following characters: plants irregularly branched; carpogonial branches long and straight and well differentiated from fascicles, bearing involucral filaments in a crown pattern; enlarged pit connections in the cells of carpogonial branches; and pedunculate carposporophytes with large carposporangia. Within the new genus, we re-evaluated the characters used to circumscribe species by examining type specimens as well as samples from North and South America. Of the three currently accepted species attributable to Montagnia, we recognised two species: M. macrospora-type species (proposed synonyms Batrachospermum equisetifolium, B. hypogynum and B. macrosporum) and M. australis (synonym Batrachospermum australe). Morphological characters did not distinguish the two species due to variation within and among samples. The two species can be differentiated only using DNA sequence data and geographic distribution. Montagnia australis is restricted to North America; whereas, M. macrospora is a widespread pantropical species occurring in South America and Asia. Although the intraspecific divergence observed in M. macrospora is the highest reported for members of Batrachospermales, species delimitation methods did not suggest that more than one species is justified. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-01-01 2020-12-10T19:43:35Z 2020-12-10T19:43:35Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1080/00318884.2019.1624143 Phycologia. Abingdon: Taylor & Francis Ltd, v. 58, n. 6, p. 582-591, 2019. 0031-8884 http://hdl.handle.net/11449/196400 10.1080/00318884.2019.1624143 WOS:000502045900001 |
url |
http://dx.doi.org/10.1080/00318884.2019.1624143 http://hdl.handle.net/11449/196400 |
identifier_str_mv |
Phycologia. Abingdon: Taylor & Francis Ltd, v. 58, n. 6, p. 582-591, 2019. 0031-8884 10.1080/00318884.2019.1624143 WOS:000502045900001 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Phycologia |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
582-591 |
dc.publisher.none.fl_str_mv |
Taylor & Francis Ltd |
publisher.none.fl_str_mv |
Taylor & Francis Ltd |
dc.source.none.fl_str_mv |
Web of Science reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
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1808128646431375360 |