page_title: Chromidina
hierarchical_section_title: Chromidina
caption_attribution_description: English: Figure 4 of paper Phylogenetic position of Chromidina spp. within Ciliophora. This phylogenetic tree, rooted on a dinoflagellate rDNA sequence, was inferred from 30 small subunit (SSU) 18S rDNA sequences corresponding to the four Chromidina specimens identified in this study, 25 representatives of the major classes of the phylum Ciliophora, and one Dinoflagellata sequence taken as the outgroup. There were a total of 1,157 positions in the final dataset. Both the Maximum Likelihood (ML) method and Bayesian inferences, based on the general time-reversible +G +I model [28], were conducted and yielded similar topologies; the currently presented topology was obtained by the Bayesian inference. The tree is drawn to scale, with branch lengths measured in number of substitutions per site. Some branches were shortened by multiples of the length of substitutions/site scale bar (Plagyophylea, Phyllopharyngea). Numbers at the branches denote ML bootstrap percentage, from 1,000 resampling (first value) and Bayesian posterior probabilities (second value).
context_page_description: Chromidina is a genus of apostome ciliates of the family Opalinopsidae. Species of Chromidina are parasitic in the renal and pancreatic appendages of cephalopods.
  In 2016, a molecular study found that the closest relatives of Chromidina spp. were species of the apostome Pseudocollinia.
context_section_description: Chromidina is a genus of apostome ciliates of the family Opalinopsidae. Species of Chromidina are parasitic  in the renal and pancreatic appendages of cephalopods.
  In 2016, a molecular study found that the closest relatives of Chromidina spp. were species of the apostome Pseudocollinia.
caption: Phylogenetic position of Chromidina spp. within Ciliophora
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