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New insights into phylogenetic relationships of Rhabdocoela (Platyhelminthes) including members of Mariplanellida

BACKGROUND: Previous flatworm phylogenetic research has been carried out analysing 18S and 28S DNA markers. Through this methodology, Mariplanellinae subfamily has been recently re-classified as Mariplanellida status novus. This new classification implied that 3 genera belonged to Mariplanellida: Ma...

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Autores principales: Vicente-Hernández, Íñigo, Armonies, Werner, Henze, Katharina, Aguado, M. Teresa
Formato: Online Artículo Texto
Lenguaje:English
Publicado: BioMed Central 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10334529/
https://www.ncbi.nlm.nih.gov/pubmed/37430343
http://dx.doi.org/10.1186/s40850-023-00171-y
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author Vicente-Hernández, Íñigo
Armonies, Werner
Henze, Katharina
Aguado, M. Teresa
author_facet Vicente-Hernández, Íñigo
Armonies, Werner
Henze, Katharina
Aguado, M. Teresa
author_sort Vicente-Hernández, Íñigo
collection PubMed
description BACKGROUND: Previous flatworm phylogenetic research has been carried out analysing 18S and 28S DNA markers. Through this methodology, Mariplanellinae subfamily has been recently re-classified as Mariplanellida status novus. This new classification implied that 3 genera belonged to Mariplanellida: Mariplanella, Lonchoplanella and Poseidoplanella. In this study, we aim to clarify some of the relationships within Rhabdocoela analysing 18S and 28S DNA markers of a total of 91 species through Maximum Likelihood and Bayesian Inference methodologies. A total of 11 species and genera, including Lonchoplanella, from the island of Sylt are included and had not previously been involved in any molecular phylogenetic analyses. RESULTS: Our phylogenetic results support Mariplanellida as an independent group within Rhabdocoela and its status as an infraorder. Our study suggests that Lonchoplanella axi belongs to Mariplanellida. Within Rhabdocoela, Haloplanella longatuba is nested within Thalassotyphloplanida, instead of Limnotyphloplanida. Within Kalyptorhynchia, the taxon Eukalyptorhynchia turned out to be paraphyletic including members of Schizorhynchia. These results also support the position of the genus Toia separate from Cicerinidae. CONCLUSIONS: Lonchoplanella axi belongs to Mariplanellida, whose status as infraorder is herein confirmed. The genus Toia belongs separate from Cicerinidae. Further research is needed to clarify the phylogenetic relationships of Hoploplanella. Most of the species, genera and families included in this study with more than one terminal are monophyletic and well supported. Adding gene markers and complementary morphological studies will help to clarify those relationships that remain uncertain. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1186/s40850-023-00171-y.
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spelling pubmed-103345292023-07-12 New insights into phylogenetic relationships of Rhabdocoela (Platyhelminthes) including members of Mariplanellida Vicente-Hernández, Íñigo Armonies, Werner Henze, Katharina Aguado, M. Teresa BMC Zool Research BACKGROUND: Previous flatworm phylogenetic research has been carried out analysing 18S and 28S DNA markers. Through this methodology, Mariplanellinae subfamily has been recently re-classified as Mariplanellida status novus. This new classification implied that 3 genera belonged to Mariplanellida: Mariplanella, Lonchoplanella and Poseidoplanella. In this study, we aim to clarify some of the relationships within Rhabdocoela analysing 18S and 28S DNA markers of a total of 91 species through Maximum Likelihood and Bayesian Inference methodologies. A total of 11 species and genera, including Lonchoplanella, from the island of Sylt are included and had not previously been involved in any molecular phylogenetic analyses. RESULTS: Our phylogenetic results support Mariplanellida as an independent group within Rhabdocoela and its status as an infraorder. Our study suggests that Lonchoplanella axi belongs to Mariplanellida. Within Rhabdocoela, Haloplanella longatuba is nested within Thalassotyphloplanida, instead of Limnotyphloplanida. Within Kalyptorhynchia, the taxon Eukalyptorhynchia turned out to be paraphyletic including members of Schizorhynchia. These results also support the position of the genus Toia separate from Cicerinidae. CONCLUSIONS: Lonchoplanella axi belongs to Mariplanellida, whose status as infraorder is herein confirmed. The genus Toia belongs separate from Cicerinidae. Further research is needed to clarify the phylogenetic relationships of Hoploplanella. Most of the species, genera and families included in this study with more than one terminal are monophyletic and well supported. Adding gene markers and complementary morphological studies will help to clarify those relationships that remain uncertain. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1186/s40850-023-00171-y. BioMed Central 2023-07-11 /pmc/articles/PMC10334529/ /pubmed/37430343 http://dx.doi.org/10.1186/s40850-023-00171-y Text en © The Author(s) 2023 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/ (https://creativecommons.org/publicdomain/zero/1.0/) ) applies to the data made available in this article, unless otherwise stated in a credit line to the data.
spellingShingle Research
Vicente-Hernández, Íñigo
Armonies, Werner
Henze, Katharina
Aguado, M. Teresa
New insights into phylogenetic relationships of Rhabdocoela (Platyhelminthes) including members of Mariplanellida
title New insights into phylogenetic relationships of Rhabdocoela (Platyhelminthes) including members of Mariplanellida
title_full New insights into phylogenetic relationships of Rhabdocoela (Platyhelminthes) including members of Mariplanellida
title_fullStr New insights into phylogenetic relationships of Rhabdocoela (Platyhelminthes) including members of Mariplanellida
title_full_unstemmed New insights into phylogenetic relationships of Rhabdocoela (Platyhelminthes) including members of Mariplanellida
title_short New insights into phylogenetic relationships of Rhabdocoela (Platyhelminthes) including members of Mariplanellida
title_sort new insights into phylogenetic relationships of rhabdocoela (platyhelminthes) including members of mariplanellida
topic Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10334529/
https://www.ncbi.nlm.nih.gov/pubmed/37430343
http://dx.doi.org/10.1186/s40850-023-00171-y
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