Classification of Crucigenoid Algae: Phylogenetic Position of the Reinstated Genus Lemmermannia, Tetrastrum spp. Crucigenia tetrapedia, and C. lauterbornii (Trebouxiophyceae, Chlorophyta)1. Issue 2 (22nd February 2013)

• Record Type: Journal Article
• Authors: Bock, Christina; Luo, Wei; Kusber, Wolf‐Henning; Hegewald, Eberhard; Pažoutová, Marie; Krienitz, Lothar
• Is Part Of: Journal of phycology. Volume 49:Issue 2(2013:Apr.)
• Page Start: 329
• Page End: 339
• Publication Date: 2013-02-22
• Subjects: Algae -- Periodicals; 579.8
• DOI: 10.1111/jpy.12039
• Languages: English
• ISSNs: 0022-3646

Abstract

<abstract abstract-type="main" id="jpy12039-abs-0001"> <title> <x xml:space="preserve">Abstract</x> </title> <p>The subfamily Crucigenioideae was traditionally classified within the well‐characterized family Scenedesmaceae (Chlorophyceae). Several morpho‐logical revisions and questionable taxonomic changes hampered the correct classification of crucigenoid species resulting in a high number of synonymous genera. We used a molecular approach to determine the phylogenetic position of several <italic>Tetrastrum</italic> and <italic>Crucigenia</italic> species. The molecular results were correlated with morphological and ontogenetic characters. Phylogenetic analyses of the SSU rDNA gene resolved the position of <italic>Tetrastrum heteracanthum</italic> and <italic>T. staurogeniaeforme</italic> as a new lineage within the <italic>Oocystis</italic> clade of the Trebouxiophyceae. <italic>Crucigenia tetrapedia, T. triangulare, T. punctatum</italic>, and <italic>T. komarekii</italic> were shown to be closely related to <italic>Botryococcus</italic> (Trebouxiophyceae) and were transferred to <italic>Lemmer‐mannia</italic>. <italic>Crucigenia lauterbornii</italic> was not closely related to the other <italic>Crucigenia</italic> strains, but was recovered within the <italic>Chlorella</italic> clade of the Trebouxiophyceae.</p> </abstract>