Document Type
Article
Publication Date
11-1-2012
Publication Title
European Journal of Protistology
Abstract
Our understanding of the evolution of oral structures within the Colpodida is confounded by the low number of morphological characters that can be used in constructing hypotheses, and by the low taxon and character sampling in molecular phylogenetic analyses designed to assess these hypotheses. Here we increase character sampling by sequencing the mitochondrial SSU-rDNA locus for three isolates of the Marynidae sensu lato. We show that the inferred mitochondrial and nuclear SSU-rDNA trees, as well as concatenated and constrained analyses, are congruent in not recovering a monophyletic Marynidae. However, due to low node support, the trees are indifferent to whether the morphological characters used to unite the Marynidae are the result of retention of ancestral states or convergence. In light of this indifference and an increased amount of nuclear and mitochondrial SSU-rDNA data, alternative hypotheses of oral evolution in the Colpodida are presented.
Keywords
Bootstrap, Colpodeans, Mitochondrial SSU-rDNA, Node support, Nuclear SSU-rDNA, Phylogeny
Volume
48
Issue
4
First Page
297
Last Page
304
DOI
10.1016/j.ejop.2012.01.007
ISSN
09324739
Creative Commons License
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 3.0 License.
Rights
© 2012 Elsevier GmbH. Open access under CC BY-NC-ND license.
Recommended Citation
Dunthorn, Micah; Katz, Laura A.; Stoeck, Thorsten; and Foissner, Wilhelm, "Congruence and Indifference Between Two Molecular Markers for Understanding Oral Evolution in the Marynidae sensu lato (Ciliophora, Colpodea)" (2012). Biological Sciences: Faculty Publications, Smith College, Northampton, MA.
https://scholarworks.smith.edu/bio_facpubs/115
Comments
Archived as published.