Phylogenetic analysis of rhodolith formation in the Corallinales (Rhodophyta)
Although the ecological importance of rhodolith (maerl, free-living coralline algae) beds is well-known, rhodolith-forming species have been neglected in molecular phylogenetic studies. This is the first molecular systematic study aimed at understanding whether the rhodolith habit is a fixed feature...
Published in: | European Journal of Phycology |
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Language: | English |
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Informa UK Limited
2015
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Online Access: | http://hdl.handle.net/10026.1/3903 https://doi.org/10.1080/09670262.2014.984347 |
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ftunivplympearl:oai:pearl.plymouth.ac.uk:10026.1/3903 |
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ftunivplympearl:oai:pearl.plymouth.ac.uk:10026.1/3903 2024-05-19T07:45:13+00:00 Phylogenetic analysis of rhodolith formation in the Corallinales (Rhodophyta) Hernández-Kantún, JJ Riosmena-Rodriguez, R Hall-Spencer, JM Peña, V Maggs, CA Rindi, F 2015-01-02 46-61 application/pdf http://hdl.handle.net/10026.1/3903 https://doi.org/10.1080/09670262.2014.984347 en eng Informa UK Limited ISSN:0967-0262 ISSN:1469-4433 E-ISSN:1469-4433 0967-0262 1469-4433 http://hdl.handle.net/10026.1/3903 doi:10.1080/09670262.2014.984347 Not known cryptic species Lithophyllum maerl Phymatolithon psbA rhodolith SSU rDNA synapomorphy journal-article Article 2015 ftunivplympearl https://doi.org/10.1080/09670262.2014.984347 2024-05-01T00:05:12Z Although the ecological importance of rhodolith (maerl, free-living coralline algae) beds is well-known, rhodolith-forming species have been neglected in molecular phylogenetic studies. This is the first molecular systematic study aimed at understanding whether the rhodolith habit is a fixed feature in lineages and determining the relationship (phylogenetic vs. environmental) between rhodolith and crustose habits. Phylogenetic relationships of rhodolith-forming species and encrusting coralline algae at generic and species levels were analysed using SSU rDNA and psbA sequences. Extensive sampling in the European North Atlantic, Pacific and Caribbean Mexico of Phymatolithon, Lithothamnion, Lithophyllum and Neogoniolithon taxa forming rhodoliths and crusts was accompanied by examination of type or topotype material. Phylogenetic reconstruction showed that Neogoniolithon contained a monophyletic group of rhodolith-forming species whereas other rhodolith-formers were closely related to encrusting forms in the genera Phymatolithon, Lithothamnion, Mesophyllum, Hydrolithon, Spongites and Sporolithon. DNA analysis showed that the crust-forming Lithophyllum cf. incrustans/dentatum also forms rhodoliths with a stone nucleus that occur on rocky shores. In contrast, species that form beds of non-nucleate rhodoliths (e.g. Neogoniolithon spectabile, N. strictum, Lithophyllum cf. incrustans/dentatum or sp. 1 and Phymatolithon calcareum) rarely form crusts. The rhodolith habit cannot be used to delimit species for taxonomic or identification purposes. Extensive taxonomic revision will be required to deal with problems such as the position of specimens identified as Lithophyllum margaritae in two unrelated lineages. Article in Journal/Newspaper North Atlantic PEARL (Plymouth Electronic Archiv & ResearchLibrary, Plymouth University) European Journal of Phycology 50 1 46 61 |
institution |
Open Polar |
collection |
PEARL (Plymouth Electronic Archiv & ResearchLibrary, Plymouth University) |
op_collection_id |
ftunivplympearl |
language |
English |
topic |
cryptic species Lithophyllum maerl Phymatolithon psbA rhodolith SSU rDNA synapomorphy |
spellingShingle |
cryptic species Lithophyllum maerl Phymatolithon psbA rhodolith SSU rDNA synapomorphy Hernández-Kantún, JJ Riosmena-Rodriguez, R Hall-Spencer, JM Peña, V Maggs, CA Rindi, F Phylogenetic analysis of rhodolith formation in the Corallinales (Rhodophyta) |
topic_facet |
cryptic species Lithophyllum maerl Phymatolithon psbA rhodolith SSU rDNA synapomorphy |
description |
Although the ecological importance of rhodolith (maerl, free-living coralline algae) beds is well-known, rhodolith-forming species have been neglected in molecular phylogenetic studies. This is the first molecular systematic study aimed at understanding whether the rhodolith habit is a fixed feature in lineages and determining the relationship (phylogenetic vs. environmental) between rhodolith and crustose habits. Phylogenetic relationships of rhodolith-forming species and encrusting coralline algae at generic and species levels were analysed using SSU rDNA and psbA sequences. Extensive sampling in the European North Atlantic, Pacific and Caribbean Mexico of Phymatolithon, Lithothamnion, Lithophyllum and Neogoniolithon taxa forming rhodoliths and crusts was accompanied by examination of type or topotype material. Phylogenetic reconstruction showed that Neogoniolithon contained a monophyletic group of rhodolith-forming species whereas other rhodolith-formers were closely related to encrusting forms in the genera Phymatolithon, Lithothamnion, Mesophyllum, Hydrolithon, Spongites and Sporolithon. DNA analysis showed that the crust-forming Lithophyllum cf. incrustans/dentatum also forms rhodoliths with a stone nucleus that occur on rocky shores. In contrast, species that form beds of non-nucleate rhodoliths (e.g. Neogoniolithon spectabile, N. strictum, Lithophyllum cf. incrustans/dentatum or sp. 1 and Phymatolithon calcareum) rarely form crusts. The rhodolith habit cannot be used to delimit species for taxonomic or identification purposes. Extensive taxonomic revision will be required to deal with problems such as the position of specimens identified as Lithophyllum margaritae in two unrelated lineages. |
format |
Article in Journal/Newspaper |
author |
Hernández-Kantún, JJ Riosmena-Rodriguez, R Hall-Spencer, JM Peña, V Maggs, CA Rindi, F |
author_facet |
Hernández-Kantún, JJ Riosmena-Rodriguez, R Hall-Spencer, JM Peña, V Maggs, CA Rindi, F |
author_sort |
Hernández-Kantún, JJ |
title |
Phylogenetic analysis of rhodolith formation in the Corallinales (Rhodophyta) |
title_short |
Phylogenetic analysis of rhodolith formation in the Corallinales (Rhodophyta) |
title_full |
Phylogenetic analysis of rhodolith formation in the Corallinales (Rhodophyta) |
title_fullStr |
Phylogenetic analysis of rhodolith formation in the Corallinales (Rhodophyta) |
title_full_unstemmed |
Phylogenetic analysis of rhodolith formation in the Corallinales (Rhodophyta) |
title_sort |
phylogenetic analysis of rhodolith formation in the corallinales (rhodophyta) |
publisher |
Informa UK Limited |
publishDate |
2015 |
url |
http://hdl.handle.net/10026.1/3903 https://doi.org/10.1080/09670262.2014.984347 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
ISSN:0967-0262 ISSN:1469-4433 E-ISSN:1469-4433 0967-0262 1469-4433 http://hdl.handle.net/10026.1/3903 doi:10.1080/09670262.2014.984347 |
op_rights |
Not known |
op_doi |
https://doi.org/10.1080/09670262.2014.984347 |
container_title |
European Journal of Phycology |
container_volume |
50 |
container_issue |
1 |
container_start_page |
46 |
op_container_end_page |
61 |
_version_ |
1799485198730002432 |