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Species delimitation in the cyanolichen genus Rostania
BACKGROUND: In this study, we investigate species limits in the cyanobacterial lichen genus Rostania (Collemataceae, Peltigerales, Lecanoromycetes). Four molecular markers (mtSSU rDNA, β-tubulin, MCM7, RPB2) were sequenced and analysed with two coalescent-based species delimitation methods: the Gene...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
BioMed Central
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7488055/ https://www.ncbi.nlm.nih.gov/pubmed/32912146 http://dx.doi.org/10.1186/s12862-020-01681-w |
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author | Košuthová, Alica Bergsten, Johannes Westberg, Martin Wedin, Mats |
author_facet | Košuthová, Alica Bergsten, Johannes Westberg, Martin Wedin, Mats |
author_sort | Košuthová, Alica |
collection | PubMed |
description | BACKGROUND: In this study, we investigate species limits in the cyanobacterial lichen genus Rostania (Collemataceae, Peltigerales, Lecanoromycetes). Four molecular markers (mtSSU rDNA, β-tubulin, MCM7, RPB2) were sequenced and analysed with two coalescent-based species delimitation methods: the Generalized Mixed Yule Coalescent model (GMYC) and a Bayesian species delimitation method (BPP) using a multispecies coalescence model (MSC), the latter with or without an a priori defined guide tree. RESULTS: Species delimitation analyses indicate the presence of eight strongly supported candidate species. Conclusive correlation between morphological/ecological characters and genetic delimitation could be found for six of these. Of the two additional candidate species, one is represented by a single sterile specimen and the other currently lacks morphological or ecological supporting evidence. CONCLUSIONS: We conclude that Rostania includes a minimum of six species: R. ceranisca, R. multipunctata, R. occultata 1, R. occultata 2, R. occultata 3, and R. occultata 4,5,6. Three distinct Nostoc morphotypes occur in Rostania, and there is substantial correlation between these morphotypes and Rostania thallus morphology. |
format | Online Article Text |
id | pubmed-7488055 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | BioMed Central |
record_format | MEDLINE/PubMed |
spelling | pubmed-74880552020-09-16 Species delimitation in the cyanolichen genus Rostania Košuthová, Alica Bergsten, Johannes Westberg, Martin Wedin, Mats BMC Evol Biol Research Article BACKGROUND: In this study, we investigate species limits in the cyanobacterial lichen genus Rostania (Collemataceae, Peltigerales, Lecanoromycetes). Four molecular markers (mtSSU rDNA, β-tubulin, MCM7, RPB2) were sequenced and analysed with two coalescent-based species delimitation methods: the Generalized Mixed Yule Coalescent model (GMYC) and a Bayesian species delimitation method (BPP) using a multispecies coalescence model (MSC), the latter with or without an a priori defined guide tree. RESULTS: Species delimitation analyses indicate the presence of eight strongly supported candidate species. Conclusive correlation between morphological/ecological characters and genetic delimitation could be found for six of these. Of the two additional candidate species, one is represented by a single sterile specimen and the other currently lacks morphological or ecological supporting evidence. CONCLUSIONS: We conclude that Rostania includes a minimum of six species: R. ceranisca, R. multipunctata, R. occultata 1, R. occultata 2, R. occultata 3, and R. occultata 4,5,6. Three distinct Nostoc morphotypes occur in Rostania, and there is substantial correlation between these morphotypes and Rostania thallus morphology. BioMed Central 2020-09-10 /pmc/articles/PMC7488055/ /pubmed/32912146 http://dx.doi.org/10.1186/s12862-020-01681-w Text en © The Author(s) 2020 Open AccessThis 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/. The Creative Commons Public Domain Dedication waiver (http://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 Article Košuthová, Alica Bergsten, Johannes Westberg, Martin Wedin, Mats Species delimitation in the cyanolichen genus Rostania |
title | Species delimitation in the cyanolichen genus Rostania |
title_full | Species delimitation in the cyanolichen genus Rostania |
title_fullStr | Species delimitation in the cyanolichen genus Rostania |
title_full_unstemmed | Species delimitation in the cyanolichen genus Rostania |
title_short | Species delimitation in the cyanolichen genus Rostania |
title_sort | species delimitation in the cyanolichen genus rostania |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7488055/ https://www.ncbi.nlm.nih.gov/pubmed/32912146 http://dx.doi.org/10.1186/s12862-020-01681-w |
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