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Ancient Tethyan Vicariance and Long-Distance Dispersal Drive Global Diversification and Cryptic Speciation in the Red Seaweed Pterocladiella

We investigated the globally distributed red algal genus Pterocladiella, comprising 24 described species, many of which are economically important sources of agar and agarose. We used DNA-based species delimitation approaches, phylogenetic, and historical biogeographical analyses to uncover cryptic...

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Autores principales: Boo, Ga Hun, Leliaert, Frederik, Le Gall, Line, Coppejans, Eric, De Clerck, Olivier, Van Nguyen, Tu, Payri, Claude E., Miller, Kathy Ann, Yoon, Hwan Su
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9201827/
https://www.ncbi.nlm.nih.gov/pubmed/35720545
http://dx.doi.org/10.3389/fpls.2022.849476
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author Boo, Ga Hun
Leliaert, Frederik
Le Gall, Line
Coppejans, Eric
De Clerck, Olivier
Van Nguyen, Tu
Payri, Claude E.
Miller, Kathy Ann
Yoon, Hwan Su
author_facet Boo, Ga Hun
Leliaert, Frederik
Le Gall, Line
Coppejans, Eric
De Clerck, Olivier
Van Nguyen, Tu
Payri, Claude E.
Miller, Kathy Ann
Yoon, Hwan Su
author_sort Boo, Ga Hun
collection PubMed
description We investigated the globally distributed red algal genus Pterocladiella, comprising 24 described species, many of which are economically important sources of agar and agarose. We used DNA-based species delimitation approaches, phylogenetic, and historical biogeographical analyses to uncover cryptic diversity and infer the drivers of biogeographic patterns. We delimited 43 species in Pterocladiella, of which 19 are undescribed. Our multigene time-calibrated phylogeny and ancestral area reconstruction indicated that Pterocladiella most likely originated during the Early Cretaceous in the Tethys Sea. Ancient Tethyan vicariance and long-distance dispersal have shaped current distribution patterns. The ancestor of Eastern Pacific species likely arose before the formation of the formidable Eastern Pacific Barrier—a first confirmation using molecular data in red algae. Divergences of Northeast and Southeast Pacific species have been driven by the Central American Seaway barrier, which, paradoxically, served as a dispersal pathway for Atlantic species. Both long- and short-distance dispersal scenarios are supported by genetic relationships within cosmopolitan species based on haplotype analysis. Asymmetrical distributions and the predominance of peripatry and sympatry between sister species suggest the importance of budding speciation in Pterocladiella. Our study highlights the underestimation of global diversity in these crucial components of coastal ecosystems and provides evidence for the complex evolution of current species distributions.
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spelling pubmed-92018272022-06-17 Ancient Tethyan Vicariance and Long-Distance Dispersal Drive Global Diversification and Cryptic Speciation in the Red Seaweed Pterocladiella Boo, Ga Hun Leliaert, Frederik Le Gall, Line Coppejans, Eric De Clerck, Olivier Van Nguyen, Tu Payri, Claude E. Miller, Kathy Ann Yoon, Hwan Su Front Plant Sci Plant Science We investigated the globally distributed red algal genus Pterocladiella, comprising 24 described species, many of which are economically important sources of agar and agarose. We used DNA-based species delimitation approaches, phylogenetic, and historical biogeographical analyses to uncover cryptic diversity and infer the drivers of biogeographic patterns. We delimited 43 species in Pterocladiella, of which 19 are undescribed. Our multigene time-calibrated phylogeny and ancestral area reconstruction indicated that Pterocladiella most likely originated during the Early Cretaceous in the Tethys Sea. Ancient Tethyan vicariance and long-distance dispersal have shaped current distribution patterns. The ancestor of Eastern Pacific species likely arose before the formation of the formidable Eastern Pacific Barrier—a first confirmation using molecular data in red algae. Divergences of Northeast and Southeast Pacific species have been driven by the Central American Seaway barrier, which, paradoxically, served as a dispersal pathway for Atlantic species. Both long- and short-distance dispersal scenarios are supported by genetic relationships within cosmopolitan species based on haplotype analysis. Asymmetrical distributions and the predominance of peripatry and sympatry between sister species suggest the importance of budding speciation in Pterocladiella. Our study highlights the underestimation of global diversity in these crucial components of coastal ecosystems and provides evidence for the complex evolution of current species distributions. Frontiers Media S.A. 2022-06-02 /pmc/articles/PMC9201827/ /pubmed/35720545 http://dx.doi.org/10.3389/fpls.2022.849476 Text en Copyright © 2022 Boo, Leliaert, Le Gall, Coppejans, De Clerck, Van Nguyen, Payri, Miller and Yoon. https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Plant Science
Boo, Ga Hun
Leliaert, Frederik
Le Gall, Line
Coppejans, Eric
De Clerck, Olivier
Van Nguyen, Tu
Payri, Claude E.
Miller, Kathy Ann
Yoon, Hwan Su
Ancient Tethyan Vicariance and Long-Distance Dispersal Drive Global Diversification and Cryptic Speciation in the Red Seaweed Pterocladiella
title Ancient Tethyan Vicariance and Long-Distance Dispersal Drive Global Diversification and Cryptic Speciation in the Red Seaweed Pterocladiella
title_full Ancient Tethyan Vicariance and Long-Distance Dispersal Drive Global Diversification and Cryptic Speciation in the Red Seaweed Pterocladiella
title_fullStr Ancient Tethyan Vicariance and Long-Distance Dispersal Drive Global Diversification and Cryptic Speciation in the Red Seaweed Pterocladiella
title_full_unstemmed Ancient Tethyan Vicariance and Long-Distance Dispersal Drive Global Diversification and Cryptic Speciation in the Red Seaweed Pterocladiella
title_short Ancient Tethyan Vicariance and Long-Distance Dispersal Drive Global Diversification and Cryptic Speciation in the Red Seaweed Pterocladiella
title_sort ancient tethyan vicariance and long-distance dispersal drive global diversification and cryptic speciation in the red seaweed pterocladiella
topic Plant Science
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9201827/
https://www.ncbi.nlm.nih.gov/pubmed/35720545
http://dx.doi.org/10.3389/fpls.2022.849476
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