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Taxonomic revision, phylogeny, and cyst wall composition of the dinoflagellate cyst genus Votadinium Reid (Dinophyceae, Peridiniales, Protoperidiniaceae)

(2020) PALYNOLOGY. 44(2). p.310-335
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Abstract
The taxonomy of the dinoflagellate cyst-based genus Votadinium has been in need of revision. This is accomplished here by integrating morphology, large subunit (LSU) rDNA sequences, and cyst wall composition analyses through micro-Fourier transform infrared spectroscopy. Three new species, Votadinium pontifossatum, V. rhomboideum and V. reidii, are described as cyst stages of Protoperidinium paraoblongum, P. quadrioblongum, and P. steidingerae, respectively. A previously undescribed type of ornamentation is reported for V. pontifossatum. A fourth new species is assigned to V. concavum. Furthermore, Lejeunecysta psilodora Benedek (= Lejeunecysta psuchra Matsuoka), is re-described as V. psilodora and the holotype re-illustrated, as is done for the holotype of V. spinosum Reid. New illustrations are provided for V. elongatum and V. nanhaiense. LSU rDNA sequences of V. concavum reveal its placement in the Oceanica section of the genus Protoperidinium, supporting earlier evidence that the Oceanica section and the cyst-based genus Votadinium form a monophyletic clade. Thus, Votadinium could be considered the cyst equivalent of the motile-defined Oceanica section. The cyst walls of Votadinium spinosum, V. calvum and V. pontifossatum are built from carbohydrate-based macromolecules with N-containing functional groups, in agreement with the heterotrophic nature of their motile stage. Comparison with related genera Trinovantedinium and Quinquecuspis reveals that the species and genera can be separated based on cyst wall composition, supporting a phylogeny based on molecular data and/or ecological differences. Furthermore, Trinovantedinium applanatum spectra unexpectedly show an additional absorption at 1510 cm(-1), indicating an aromatic group that is commonly reported for sporopollenin and not seen in dinoflagellate cysts so far. This study stabilizes the taxonomy of the cyst genus Votadinium, clarifies its relationship to the Oceanica section of Protoperidinium, and further supports the application of whole cyst wall chemistry in helping address problems in dinoflagellate cyst taxonomy and ecology.
Keywords
SOUTH CHINA SEA, THECA RELATIONSHIP, SURFACE SEDIMENTS, SP-NOV, RESTING CYSTS, DIVERSITY, MARINE, COAST, EVOLUTION, PLIOCENE, taxonomy, dual nomenclature, dinoflagellate cyst, ornamentation, micro-FTIR, cyst wall composition, sporopollenin

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MLA
Gurdebeke, Pieter, et al. “Taxonomic Revision, Phylogeny, and Cyst Wall Composition of the Dinoflagellate Cyst Genus Votadinium Reid (Dinophyceae, Peridiniales, Protoperidiniaceae).” PALYNOLOGY, vol. 44, no. 2, 2020, pp. 310–35, doi:10.1080/01916122.2019.1580627.
APA
Gurdebeke, P., Mertens, K. N., Pospelova, V., Matsuoka, K., Li, Z., Gribble, K. E., … Louwye, S. (2020). Taxonomic revision, phylogeny, and cyst wall composition of the dinoflagellate cyst genus Votadinium Reid (Dinophyceae, Peridiniales, Protoperidiniaceae). PALYNOLOGY, 44(2), 310–335. https://doi.org/10.1080/01916122.2019.1580627
Chicago author-date
Gurdebeke, Pieter, Kenneth N. Mertens, Vera Pospelova, Kazumi Matsuoka, Zhen Li, Kristin E. Gribble, Haifeng Gu, Kara Bogus, Henk Vrielinck, and Stephen Louwye. 2020. “Taxonomic Revision, Phylogeny, and Cyst Wall Composition of the Dinoflagellate Cyst Genus Votadinium Reid (Dinophyceae, Peridiniales, Protoperidiniaceae).” PALYNOLOGY 44 (2): 310–35. https://doi.org/10.1080/01916122.2019.1580627.
Chicago author-date (all authors)
Gurdebeke, Pieter, Kenneth N. Mertens, Vera Pospelova, Kazumi Matsuoka, Zhen Li, Kristin E. Gribble, Haifeng Gu, Kara Bogus, Henk Vrielinck, and Stephen Louwye. 2020. “Taxonomic Revision, Phylogeny, and Cyst Wall Composition of the Dinoflagellate Cyst Genus Votadinium Reid (Dinophyceae, Peridiniales, Protoperidiniaceae).” PALYNOLOGY 44 (2): 310–335. doi:10.1080/01916122.2019.1580627.
Vancouver
1.
Gurdebeke P, Mertens KN, Pospelova V, Matsuoka K, Li Z, Gribble KE, et al. Taxonomic revision, phylogeny, and cyst wall composition of the dinoflagellate cyst genus Votadinium Reid (Dinophyceae, Peridiniales, Protoperidiniaceae). PALYNOLOGY. 2020;44(2):310–35.
IEEE
[1]
P. Gurdebeke et al., “Taxonomic revision, phylogeny, and cyst wall composition of the dinoflagellate cyst genus Votadinium Reid (Dinophyceae, Peridiniales, Protoperidiniaceae),” PALYNOLOGY, vol. 44, no. 2, pp. 310–335, 2020.
@article{8622682,
  abstract     = {The taxonomy of the dinoflagellate cyst-based genus Votadinium has been in need of revision. This is accomplished here by integrating morphology, large subunit (LSU) rDNA sequences, and cyst wall composition analyses through micro-Fourier transform infrared spectroscopy. Three new species, Votadinium pontifossatum, V. rhomboideum and V. reidii, are described as cyst stages of Protoperidinium paraoblongum, P. quadrioblongum, and P. steidingerae, respectively. A previously undescribed type of ornamentation is reported for V. pontifossatum. A fourth new species is assigned to V. concavum. Furthermore, Lejeunecysta psilodora Benedek (= Lejeunecysta psuchra Matsuoka), is re-described as V. psilodora and the holotype re-illustrated, as is done for the holotype of V. spinosum Reid. New illustrations are provided for V. elongatum and V. nanhaiense. LSU rDNA sequences of V. concavum reveal its placement in the Oceanica section of the genus Protoperidinium, supporting earlier evidence that the Oceanica section and the cyst-based genus Votadinium form a monophyletic clade. Thus, Votadinium could be considered the cyst equivalent of the motile-defined Oceanica section. The cyst walls of Votadinium spinosum, V. calvum and V. pontifossatum are built from carbohydrate-based macromolecules with N-containing functional groups, in agreement with the heterotrophic nature of their motile stage. Comparison with related genera Trinovantedinium and Quinquecuspis reveals that the species and genera can be separated based on cyst wall composition, supporting a phylogeny based on molecular data and/or ecological differences. Furthermore, Trinovantedinium applanatum spectra unexpectedly show an additional absorption at 1510 cm(-1), indicating an aromatic group that is commonly reported for sporopollenin and not seen in dinoflagellate cysts so far. This study stabilizes the taxonomy of the cyst genus Votadinium, clarifies its relationship to the Oceanica section of Protoperidinium, and further supports the application of whole cyst wall chemistry in helping address problems in dinoflagellate cyst taxonomy and ecology.},
  author       = {Gurdebeke, Pieter and Mertens, Kenneth N. and Pospelova, Vera and Matsuoka, Kazumi and Li, Zhen and Gribble, Kristin E. and Gu, Haifeng and Bogus, Kara and Vrielinck, Henk and Louwye, Stephen},
  issn         = {0191-6122},
  journal      = {PALYNOLOGY},
  keywords     = {SOUTH CHINA SEA,THECA RELATIONSHIP,SURFACE SEDIMENTS,SP-NOV,RESTING CYSTS,DIVERSITY,MARINE,COAST,EVOLUTION,PLIOCENE,taxonomy,dual nomenclature,dinoflagellate cyst,ornamentation,micro-FTIR,cyst wall composition,sporopollenin},
  language     = {eng},
  number       = {2},
  pages        = {310--335},
  title        = {Taxonomic revision, phylogeny, and cyst wall composition of the dinoflagellate cyst genus Votadinium Reid (Dinophyceae, Peridiniales, Protoperidiniaceae)},
  url          = {http://dx.doi.org/10.1080/01916122.2019.1580627},
  volume       = {44},
  year         = {2020},
}

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