Molecular phylogeny of Antarctic prasiola (prasiolales, treb
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TitleMolecular phylogeny of Antarctic prasiola (prasiolales, trebouxiophyceae) reveals extensive cryptic diversityAbstractTrebouxiophytes of the genus Prasiola are well known in Antarctica, where they are among the most important primary producers. Although many aspects of their biology have been thoroughly investigated, the scarcity of molecular data has so far prevented an accurate assessment of their taxonomy and phylogenetic position. Using sequences of the chloroplast genes rbcL and psaB, we demonstrate the existence of three cryptic species that were previously confused under Prasiola crispa (Lightfoot) KÃ¼tzing. Genuine P. crispa occurs in Antarctica; its presence was confirmed by comparison with the rbcL sequence of the type specimen (from the Isle of Skye, Scotland). Prasiola antarctica KÃ¼tzing is resurrected as an independent species to designate algae with gross morphology identical to P. crispa but robustly placed in a separate lineage. The third species is represented by specimens identified as P. calophylla (Carmichael ex Greville) KÃ¼tzing in previous studies, but clearly separated from European P. calophylla (type locality: Argyll, Scotland); this alga is described as P. glacialis sp. nov. The molecular data demonstrated the presence of P. crispa in Maritime and Continental Antarctica. P. antarctica was recorded from the Antarctic Peninsula and Shetland Islands, and P. glacialis from the Southern Ocean islands and coast. Such unexpected cryptic diversity highlights the need for a taxonomic reassessment of many published Antarctic records of P. crispa. The results also indicate that marine species of Prasiola form a well-supported monophyletic group, whereas the phylogenetic diversity of freshwater species is higher than previously suspected (at least three separate lineages within the genus include species living in this type of environments). â"' 2012 Phycological Society of America.AcknowledgementsThe study was funded by the Marine Institute (Ireland) as part of the National Marine Biodiscovery Programme under the Beaufort Award for Marine Biodiscovery to NUI, Galway. We are very grateful to Charles Amsler, Han-Gu Choi, Gary Saunders, Sandra Lindstrom, Line Le Gall, Hana Kucera, Dan McDevitt, Frithjof KÃ¼pper, Stefano Draisma, Jiv ri Neustupa, Fiona Scott, RocÌio RamÌirez RodrÌiguez, and Javier Carmona JimÃ©nez for collecting and sending samples. Juliet Brodie, Jo Wilbraham, and Willem PrudhÌomme van Reine kindly assisted with the loans of the type specimens of Ulva crispa and Prasiola antarctica from BM and L, respectively. Juan LÃ³pez-Bautista provided partial assistance and useful information for the rbcL sequencing. PMN is grateful for support from Antarctica New Zealand and the Ministry of Science and Innovation through the Defining New ZealandÅ› Land Biota Nationally Significant Database contract.
1st AuthorMoniz, M.AuthorMoniz, M.Rindi, F.Novis, P.Broady, P.Guiry, M.Year2012JournalJournal of PhycologyVolume48Number4Pages940-955DOI10.1111/j.1529-8817.2012.01172.xURLhttps://www.scopus.com/inward/recor.....11963f7491f6f99d8fcc038beKeywordsalgaePrasiolaPrasiola calophyllaPrasiola crispaPrasiolalesTrebouxiophyceae, rank5Author KeywordsAntarcticaCryptic diversityMolecular phylogenyPrasiolaPrasiolalesTerrestrial algae
TypeArticleCitationMoniz, M., Rindi, F., Novis, P., Broady, P. and Guiry, M. (2012). Molecular phylogeny of Antarctic prasiola (prasiolales, trebouxiophyceae) reveals extensive cryptic diversity. Journal of Phycology, 48(4): 940-955 doi:10.1111/j.1529-8817.2012.01172.x
Antarctica NZ (26th Nov 2018). Molecular phylogeny of Antarctic prasiola (prasiolales, treb . In Website Antarctica NZ. Retrieved 16th Jan 2021 10:26, from https://adam.antarcticanz.govt.nz/nodes/view/63673