An updated phylogeny of oligotrich and choreotrich ciliates (Protozoa, Ciliophora, Spirotrichea) with representative taxa collected from Chinese coastal waters (vol 7, pg 235, 2009)

作者：Gao, Shan; Gong, Jun; Lynn, Denis; Lin, Xiaofeng; Song, Weibo^*

来源：Systematics and Biodiversity, 2009, 7(3): 347-347.

DOI：10.1017/S1477200009990077

• Oligotrichia
• SS rRNA
• phylogeny
• Parallelostrombidium
• Spirostrombidium
• Spirotontonia
• Pseudotontonia
• ciliate

Small subunit ribosomal RNA genes of 12 ciliate morphospecies from seven genera (subclasses Oligotrichia and Choreotrichia), Parallelostrombidium, Pseudotontonia, Spirostrombidium, Spirotontonia, Tintinnopsis, Favella and Strombidium were sequenced. Phylogenetic trees, constructed using Bayesian inference, maximum likelihood and maximum parsimony, yielded essentially the same topology. The tail-less Laboea groups, with the tail-bearing Spirotontonio and Pseudotontonia, challenge the diagnostic feature of the family Tontoniidae. The three Spirostrombidium species form a monophyletic group, supporting the separation of Spirostrombidium from the morphologically related genus Strombidium. Parallelostrombidium branches off basally to the Spirostrombidium clade, to some extent supporting Agatha's division of these two similar genera. Under the approximately unbiased (AU) test, topologies constrained for Strombidium monophyly were found not to be significantly worse (P > 0.05) than unconstrained topologies in which Strombidium conicum grouped with non-Strombidium species. Therefore, we can not refute the monophyly of Strombidium. Our analyses also support the previous reports that the genus Tintinnopsis is polyphyletic.

• 出版日期2009-9
• 单位华南师范大学; 中国海洋大学