Fottea 2018, 18(2):243-255 | DOI: 10.5507/fot.2018.009

Morphology and phylogeny of three planktonic Radiococcaceae sensu lato species (Sphaeropleales, Chlorophyceae) from China, including the description of a new species Planktosphaeria hubeiensis sp. nov.

Qi Zhang1, Lingling Zheng1, Tianli Li2, Guoxiang Liu2, Lirong Song1*
1 State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, 430072 Wuhan, China;
* Corresponding author e-mail: lrsong@ihb.ac.cn
2 Key Laboratory of Algal Biology, Institute of Hydrobiology, Chinese Academy of Sciences, 430072 Wuhan, China

The family Radiococcaceae sensu lato, defined as colonial autospore-producing mucilaginous coccoid green algae, is widespread in terrestrial and freshwater habitats. Three species of Radiococcaceae sensu lato, including two Radiococcus species and one Planktosphaeria species, were described from China by light and electron microscopy. A new species of Planktosphaeria, Planktosphaeria hubeiensis sp. nov. was erected based on morphological comparisons and genetic analyses. Our phylogenetic analyses indicated that Radiococcaceae sensu lato is polyphyletic, and separated into three lineages. The Radiococcus species did not cluster into a monophyletic group in phylogenetic analyses; therefore the taxonomy of the genus Radiococcus should be revised in the future.

Keywords: morphology, Planktosphaeria, phylogeny, Radiococcaceae, Radiococcus, taxonomy

Received: January 2, 2018; Accepted: May 30, 2018; Prepublished online: August 3, 2018; Published: November 1, 2018Show citation

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Zhang, Q., Zheng, L., Li, T., Liu, G., & Song, L. (2018). Morphology and phylogeny of three planktonic Radiococcaceae sensu lato species (Sphaeropleales, Chlorophyceae) from China, including the description of a new species Planktosphaeria hubeiensis sp. nov. Fottea, 18(2), 243-255. doi: 10.5507/fot.2018.009
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    References

    1. Alves, F. R. R.; Gama Jr, W. A. & de Nogueira, I. S. (2014): Planktonic Radiococcaceae Fott ex Komárek of the Tigres Lake system, Britânia, Goiás State, Brazil. - Braz. J. Bot. 37: 519-530. Go to original source...
    2. Bischoff, H. W. & Bold, H. C. (1963): Phycological studies. IV. Some soil algae from enchanted rock and related algal species. - pp. 1-95, University of Texas Publication No. 6318, Austin, Texas.
    3. Bourrelly, P. (1966): Les algues d'eau douce. Initiation à la Systèmatique. Les algues vertes. Editions N. - 511 pp., Boubèe, Paris.
    4. Broady, P. A. (1986): Ecology and taxonomy of the terrestrial algae of the Vestfold Hills. - In: Pickard, J. (ed.): Antarctic Oasis. - pp. 165-202, Academic Press, Sydney, Australia.
    5. Cannone, J. J.; Subramanian, S.; Schnare, M. N.; Collett, J. R.; D'Souza, L. M.; Du, Y.; Feng, B.; Lin, N.; Madabusi, L. V.; Müller, K. M.; Pande, N.; Shang, Z.; Yu, N. & Gutell, R. R. (2002): The Comparative RNA Web (CRW) Site: an online database of comparative sequence and structure information for ribosomal, intron, and other RNAs. - BMC Bioinformatics 3: 2-15. Go to original source...
    6. Darriba, D.; Taboada, G. L.; Doallo, R. & Posada, D. (2012): jModelTest 2: more models, new heuristics and parallel computing. - Nature Methods 9: 772. Go to original source...
    7. Edgar, R. C. (2004): MUSCLE: a multiple sequence alignment method with reduced time and space complexity. - BMC Bioinformatics 5: 1-19. Go to original source...
    8. Flechtner, V. R.; Johansen, J. R. & Clark, W. H. (1998): Algal composition of microbiotic crusts from the central desert of Baja California, Mexico. - Great Basin Nat. 58: 295-311.
    9. Fott, B. (1959): Algenkunde. - 482 pp., Gustav Fischer Verlag, Jena.
    10. Fott, B. (1974): Taxonomie der palmelloiden Chlorococcales (Familie Palmogloeaceae). - Preslia 46: 1-31.
    11. Fučíková, K.; Lewis, P. O. & Lewis, L. A. (2014): Putting incertae sedis taxa in their place: a proposal for ten new families and three new genera in Sphaeropleales (Chlorophyceae, Chlorophyta). - J. Phycol. 50: 14-25 Go to original source...
    12. Herndon, W. (1958): Some new species of chlorococcacean algae. - Amer. J. Bot. 45: 308-323. Go to original source...
    13. Hindák, F. (1977): Studies on the chlorococcal algae (Chlorophyceae). I. - Biologicke Práce 23: 1-192.
    14. Hindák, F. (1984): Studies on the Chlorococcal Algae (Chlorophyceae). III. - Biologicke Práce 30: 1-310.
    15. Huelsenbeck, J. & Ronquist, F. (2001): MRBAYES: bayesian inference of phylogenetic trees. - Bioinformatics 17: 754-755. Go to original source...
    16. Katana, A.; Kwiatowski, J.; Spalik, K.; Zakry¶, B.; Szalacha, E. & Szymanska, H. (2001): Phylogenetic position of Koliella (Chlorophyta) as inferred from nuclear and chloroplast small subunit rDNA. - Journal of Phycology 37: 443-451. Go to original source...
    17. Kim, Y. J. (2014): Floristic survey and five new records of fresh-water coccoid green algae (genus Coenochloris, Radiococcus, Schizochlamydella, and Thorakochloris). - J. Ecol. Environ. 37: 351-363 Go to original source...
    18. Komárek, J. (1979): Änderungen in der Taxonomie der Chlorokokkalgen. - Algological Studies 24: 239-263.
    19. Komárek, J. (1989): Polynuclearity of vegetative cells in coccal green algae from the family Neochloridaceae. - Arch. Protistenkd. 137: 255-273. Go to original source...
    20. Komárek, J. & Fott, B. (1983): Chlorophyceae (Grünalgen) Ordnung: Das Phytoplankton des Süβwassers. - In: Huber-Pestalozzi, G. (ed.): Das Phytoplankton des Süsswassers (Die Binnengewässer) XVI. - pp. 1-445, Schweizerbart'sche Verlagsbuchhandlung, Stuttgart.
    21. Korshikov, A. A. (1953): Viznachnik prisnovodnihk vodorostey Ukrainsykoi RSR [Vyp] V. Pidklas Protokokovi (Protococcineae). Bakuol'ni (Vacuolales) ta Protokokovi (Protococcales) [The Freshwater Algae of the Ukrainian SSR. V. Sub-Class Protococcineae. Vacuolales and Protococcales]. - pp. 1-439, Akad. NAUK URSR, Kyjev.
    22. Kostikov, I.; Darienko, T.; Lukeąová, A. & Hoffmann, L. (2002): Revision of the classification system of Radiococcaceae Fott ex Komárek (except the subfamily Dictyochlorelloideae) (Chlorophyta). - Algological Studies 104: 23-58. Go to original source...
    23. Kouwets, F. A. C. (1995): Ultrastructural aspects of the cell cycle in Planktosphaeria gelatinosa (Chlorophyceae), with emphasis on the flagellar apparatus of the zoospore. - Arch. Protistenkd. 146: 37-48. Go to original source...
    24. Krienitz, L. & Bock, C. (2012): Present state of the systematics of planktonic coccoid green algae of inland waters. - Hydrobiologia 698: 295-326. Go to original source...
    25. Krienitz, L.; Hegewald, E.; Hepperle, D. & Wolf, M. (2003): The systematics of coccoid green algae: 18S rRNA gene sequence data versus morphology. - Biologia 58: 437-446.
    26. Kumar, S.; Stecher, G. & Tamura, K. (2016): MEGA7: molecular evolutionary genetics analysis version 7.0 for bigger datasets. - Molecular Biology and Evolution 33: 1870-1874. Go to original source...
    27. Lemmermann, E. (1915): Tetrasporales. - In: Pascher, A (ed.): Die Süsswasserflora Deutschlands, Österreichs und der Schweiz. Heft 5. - pp. 21-51, Gustav Fischer Verlag, Jena.
    28. Lewis, L. A. & McCourt, R. M. (2004): Green algae and the origin of land plants. - American Journal of Botany 91: 1535-1556. Go to original source...
    29. Lukeąová, A. (1993): Revision of the genus Follicularia MILL. (Chlorophyceae). - Arch. Protistenkd. 143: 87-100. Go to original source...
    30. Lund, J. W. G. (1956): On certain planktonic palmelloid green algae. - Journal of the Linnean Society of London, Botany 55: 593-613. Go to original source...
    31. Luo, W.; Pflugmacher, S.; Pröschold, T.; Walz, N. & Krienitz, L. (2006): Genotype versus phenotype variability in Chlorella and Micractinium (Chlorophyta, Trebouxiophyceae). - Protist 157: 315-333. Go to original source...
    32. Miller, W. (1924): Follicularia, eine neue Chlorophyceengattung. Russkii Arkhiv Protistologii 3: 171-173.
    33. Patova, E. N. & Dorokhova, M. F. (2008): Green algae in tundra soils affected by coal mine pollutions. - Biologia 63: 831-835. Go to original source...
    34. Paľoutová, M. (2008): Phylogenetic diversity and generic concept in the family Radiococcaceae, Chlorophyta. - pp. 1-74, Diplomove prace, Univerzita Karlova v Praze, Praha.
    35. Paľoutová, M.; ©kaloud, P. & Nemjová, K. (2010): Phylogenetic position of Ooplanctella planoconvexa, gen. et comb. nova and Echinocoleum elegans (Oocystaceae, Trebouxiophyceae, Chlorophyta). - Fottea 10: 75-82. Go to original source...
    36. Schmidle, W. (1902): Über die Gattung Radiococcus Schmidle n. gen. - Allgem. Bot. Zeitschr. 8: 41-42.
    37. Smith, G. M. (1918): A second list of algae found in Wisconsin lakes. - Transactions of the Wisconsin Acadademy of Science, Arts and Letters 19: 614-654.
    38. Smith, G. M. (1933): The fresh-water algae of the United States. - 716 pp., McGrew-Hill, New York.
    39. Smith, G. M. (1950): The fresh-water algae of the United States. 2nd Edition. - 719 pp., McGrew-Hill, New York.
    40. Soylu, E. N. & Gönülol, A. (2012): Morphological and 18S rRNA analysis of coccoid green algae isolated from lakes of Kizilirmak Delta. - Turkish Journal of Biology 36: 247-254. Go to original source...
    41. Spurr, A. R. (1969): A low viscosity epoxy resin embedding medium for electron microscopy. - J. Ultrastruct. Res. 26: 31-43. Go to original source...
    42. Starr, R. C. (1954): Reproduction by zoospores in Planktosphaeria gelatinosa G.M. SMITH. -Hydrobiologia 6: 392-397. Go to original source...
    43. Stamatakis, A. (2006): RAxML-VI-HPC: maximum likelihood-based phylogenetic analyses with thousands of taxa and mixed models. - Bioinformatics 22: 2688-2690. Go to original source...
    44. Stanier, R. Y.; Kunisawa, R. & Mandel, M. (1971): Purification and properties of unicellular blue-green algae. - Bacteriological Reviews 35: 171-205. Go to original source...
    45. Thompson, J. D.; Gibson, T. J. & Plewniak, F. (1997): The Clustal X windows interface: flexible strategies for multiple sequence alignment aided by quality analysis tools. - Nucleic Acids Research 25: 4876-4882. Go to original source...
    46. Wolf, M.; Hepperle, D. & Krienitz, L. (2003): On the phylogeny of Radiococcus, Planktosphaeria and Schizochlamydella (Radiococcaceae, Chlorophyta). - Biologia 58: 759-765.
    47. Wujek, D. E. & Gretz, M. R. (1977): An ultrastructural study of the pyrenoid of Schizochlamys (Chlorophyceae: Tetrasporales). - Trans. Amer. Micros. Soc. 96: 398-402. Go to original source...

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