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Syngonanthus androgynus, a Striking New Species from South America, its Phylogenetic Placement and Implications for Evolution of Bisexuality in Eriocaulaceae

In the present study, we describe and illustrate a remarkable new species of Syngonanthus from South America (Bolivia, Brazil and Peru). This new species is quickly distinguished from all species in the genus by trimerous and bisexual flowers, a unique set of characteristics in Syngonanthus. Complem...

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Detalles Bibliográficos
Autores principales: Watanabe, Mauricio Takashi Coutinho, Hensold, Nancy, Sano, Paulo Takeo
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2015
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4641623/
https://www.ncbi.nlm.nih.gov/pubmed/26559183
http://dx.doi.org/10.1371/journal.pone.0141187
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author Watanabe, Mauricio Takashi Coutinho
Hensold, Nancy
Sano, Paulo Takeo
author_facet Watanabe, Mauricio Takashi Coutinho
Hensold, Nancy
Sano, Paulo Takeo
author_sort Watanabe, Mauricio Takashi Coutinho
collection PubMed
description In the present study, we describe and illustrate a remarkable new species of Syngonanthus from South America (Bolivia, Brazil and Peru). This new species is quickly distinguished from all species in the genus by trimerous and bisexual flowers, a unique set of characteristics in Syngonanthus. Complementary to this study, sequences of 33 species were downloaded from GenBank and four species had sequences newly generated for this study. Molecular phylogenetic analyses based on nuclear ribosomal ITS and the plastid regions psbA-trnH and trnL-F were performed to determine its systematic position. The results have shown S. androgynus closely related to a well-supported clade that has been treated as Syngonanthus sect. Carphocephalus. Floral traits associated with this new plant also were surveyed. Character reconstruction suggests that the bisexual flowers originated independently more than once in the genus. However, trimerous flowers appear to be an ancestral condition of the whole genus.
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spelling pubmed-46416232015-11-18 Syngonanthus androgynus, a Striking New Species from South America, its Phylogenetic Placement and Implications for Evolution of Bisexuality in Eriocaulaceae Watanabe, Mauricio Takashi Coutinho Hensold, Nancy Sano, Paulo Takeo PLoS One Research Article In the present study, we describe and illustrate a remarkable new species of Syngonanthus from South America (Bolivia, Brazil and Peru). This new species is quickly distinguished from all species in the genus by trimerous and bisexual flowers, a unique set of characteristics in Syngonanthus. Complementary to this study, sequences of 33 species were downloaded from GenBank and four species had sequences newly generated for this study. Molecular phylogenetic analyses based on nuclear ribosomal ITS and the plastid regions psbA-trnH and trnL-F were performed to determine its systematic position. The results have shown S. androgynus closely related to a well-supported clade that has been treated as Syngonanthus sect. Carphocephalus. Floral traits associated with this new plant also were surveyed. Character reconstruction suggests that the bisexual flowers originated independently more than once in the genus. However, trimerous flowers appear to be an ancestral condition of the whole genus. Public Library of Science 2015-11-11 /pmc/articles/PMC4641623/ /pubmed/26559183 http://dx.doi.org/10.1371/journal.pone.0141187 Text en © 2015 Watanabe et al http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.
spellingShingle Research Article
Watanabe, Mauricio Takashi Coutinho
Hensold, Nancy
Sano, Paulo Takeo
Syngonanthus androgynus, a Striking New Species from South America, its Phylogenetic Placement and Implications for Evolution of Bisexuality in Eriocaulaceae
title Syngonanthus androgynus, a Striking New Species from South America, its Phylogenetic Placement and Implications for Evolution of Bisexuality in Eriocaulaceae
title_full Syngonanthus androgynus, a Striking New Species from South America, its Phylogenetic Placement and Implications for Evolution of Bisexuality in Eriocaulaceae
title_fullStr Syngonanthus androgynus, a Striking New Species from South America, its Phylogenetic Placement and Implications for Evolution of Bisexuality in Eriocaulaceae
title_full_unstemmed Syngonanthus androgynus, a Striking New Species from South America, its Phylogenetic Placement and Implications for Evolution of Bisexuality in Eriocaulaceae
title_short Syngonanthus androgynus, a Striking New Species from South America, its Phylogenetic Placement and Implications for Evolution of Bisexuality in Eriocaulaceae
title_sort syngonanthus androgynus, a striking new species from south america, its phylogenetic placement and implications for evolution of bisexuality in eriocaulaceae
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4641623/
https://www.ncbi.nlm.nih.gov/pubmed/26559183
http://dx.doi.org/10.1371/journal.pone.0141187
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