A Molecular Phylogenetic Investigation of Bakuella, Anteholosticha, and Caudiholosticha (Protista, Ciliophora, Hypotrichia) Based on Three‐Gene Sequences. (30th December 2014)

• Record Type: Journal Article
• Authors: Lv, Zhao; Shao, Chen; Yi, Zhenzhen; Warren, Alan
• Is Part Of: Journal of eukaryotic microbiology. Volume 62:Number 3(2015:May/Jun.)
• Page Start: 391
• Page End: 399
• Publication Date: 2014-12-30
• Subjects: Ciliates -- molecular phylogeny -- multi‐gene -- Urostyloidea; Protista -- Periodicals; Eukaryotic cells -- Periodicals; Microbiology -- Periodicals; 579.05
• DOI: 10.1111/jeu.12194
• Languages: English
• ISSNs: 1066-5234

Abstract

Abstract: Traditionally classifications of the Urostyloida have been mainly based on morphology and morphogenesis. Recent molecular phylogenetic analyses have been largely based on single‐gene data for a limited number of taxa. Consequently, incongruence has arisen between the morphological/morphogenetic and the molecular data. In this study, the three phylogenetic markers (SSU rDNA, ITS1‐5.8S‐ITS2 region, and LSU‐rDNA) of three urostyloid genera represented by four species ( Bakuella granulifera, Anteholosticha monilata, Caudiholosticha sylvatica, and C. tetracirra ) were sequenced to investigate their phylogeny. The results show that: (1) all three genera should be regarded as the members of the order Urostyloida within the subclass Hypotrichia, as indicated by morphological characters; (2) phylogenetic analyses and sequence similarities both indicate that neither Anteholosticha nor Caudiholosticha are monophyletic and the systematic assignment of both genera awaits further evaluation; and (3) Bakuella has a closer relationship with Urostyla than with bakuellids (e.g. Apobakuella and Metaurostylopsis ), suggesting Bakuella may belong to the family Urostylidae rather than the family Bakuellidae.