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000004813 084__ $$2WoS$$aPlant Sciences
000004813 084__ $$2WoS$$aMarine & Freshwater Biology
000004813 1001_ $$0P:(DE-Juel1)VDB575$$aHegewald, E.$$b0$$uFZJ
000004813 245__ $$aITS2 sequence-structure phylogeny in the Scenedesmaceae with special reference to Coelastrum (Chlorophyta, Chlorophyceae), including the new genera Comasiella and Pectinodesmus
000004813 260__ $$aLawrence, KS$$bSoc.$$c2010
000004813 300__ $$a325 - 335
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000004813 440_0 $$04905$$aPhycologia$$v49$$x0031-8884$$y4
000004813 500__ $$aWe thank L. Wei for the alignment of strain Krienitz 2005-45, D. Hepperle for the alignments of six strains and T. Holtmann for translating the diagnosis into Latin language. We thank W. Schroeder (Figs 2-7, 11-13) and H.-P. Bochem for SEM photos (Figs 15-17) and the reviewers and the associate editor for valuable comments and language corrections. L. Krienitz and M. Wolf were supported by grants of the Deutsche Forschungsgemeinschaft (DFG). A. Keller acknowledges the support of the BIGSS graduate school. This work was supported by a grant extended by the German Ministry of Education and Research (BMBF) to TF, contract 01LC0026, project BIOLOG 'AlgaTerra AT4'.
000004813 520__ $$aSequences and secondary structures of the nuclear-encoded internal transcribed spacer 2 (ITS2) ribosomal RNA of nine Coelastrum taxa, Asterarcys quadricellulare (Coelastraceae). Westella botryoides (hitherto Oocystaceae) and Dimorphococcus lunatus (Scenedesmaceae) were determined and compared with existing GenBank entries of scenedesmacean taxa (Desmodesmus, Enallax, Neodesmus Scenedesmus). Phylogenetic analyses showed that the studied Coelastrum taxa belong to several different lineages within the Scenedesmaceae: five Coelastrum taxa (Coelastrum microporum, Coelastrum astroideum, C. astroideum var. rugosum = Coelastrum rugosum, Coelastrum pseudomicroporum and Coelastrum sphaericum incl. Coelastrum proboscideum) form monophyletic clades, whereas two strains labeled Coelastrum morum belong to different genera. The African strain of C. martini clusters with Coelastrum cambricum. The Finnish strain labeled C. morum clusters with Asterarcys, Dimorphococcus and Hariotina. According to its morphology this strain belongs to Coelastrella, related to Coelastrella saiponensis. Westella botryoides belongs to a separate elude within the Scenedesmaceae. Coelastrum reticulatum is positioned in the chide with Asterarcys, Dimorphococcus and Coelastrella; hence its separation in a separate genus, as originally described (Hariotina), is justified. In general, the phylogenetic analysis of ITS2 data shows that the Coelastraceae are included in the monophyletic Scenedesmaceae, and thus the splitting into two families is not justified, but they belong to the monophyletic subfamily Coelastroidea. The genera Comasiella and Pectinodesmus are newly erected, and several new combinations are proposed.
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000004813 65320 $$2Author$$aITS2
000004813 65320 $$2Author$$anew combinations
000004813 65320 $$2Author$$aphylogeny
000004813 65320 $$2Author$$asecondary structure
000004813 65320 $$2Author$$aAcutodesmus
000004813 65320 $$2Author$$aCoelastraceae
000004813 65320 $$2Author$$aCoelastrella
000004813 65320 $$2Author$$aCoelastrum
000004813 65320 $$2Author$$aComasiella gen. nov.
000004813 65320 $$2Author$$aHariotina
000004813 65320 $$2Author$$aPectinodesmus gen. nov.
000004813 65320 $$2Author$$aScenedesmaceae
000004813 65320 $$2Author$$aScenedesmus
000004813 65320 $$2Author$$aWestella
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000004813 7001_ $$0P:(DE-HGF)0$$aWolf, M$$b1
000004813 7001_ $$0P:(DE-HGF)0$$aKeller, A.$$b2
000004813 7001_ $$0P:(DE-HGF)0$$aFriedl, T.$$b3
000004813 7001_ $$0P:(DE-HGF)0$$aKrienitz, L.$$b4
000004813 773__ $$0PERI:(DE-600)2243466-5$$a10.2216/09-61.1$$gVol. 49, p. 325 - 335$$p325 - 335$$q49<325 - 335$$tPhycologia$$v49$$x0031-8884$$y2010
000004813 8567_ $$uhttp://dx.doi.org/10.2216/09-61.1
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