Spliced Leader RNAs, Mitochondrial Gene Frameshifts and Multi-Protein Phylogeny Expand Support for the Genus Perkinsus as a Unique Group of Alveolates
2011

Understanding the Genus Perkinsus and Its Unique Characteristics

publication Evidence: moderate

Author Information

Author(s): Zhang Huan, Campbell David A., Sturm Nancy R., Dungan Christopher F., Lin Senjie

Primary Institution: Department of Marine Sciences, University of Connecticut

Hypothesis

What is the phylogenetic relationship of Perkinsus with other alveolates?

Conclusion

The study provides evidence that the genus Perkinsus is a unique lineage that is closely related to dinoflagellates.

Supporting Evidence

  • The genus Perkinsus has a higher intron prevalence than dinoflagellates.
  • Phylogenetic analyses show that Perkinsus is positioned between apicomplexans and dinoflagellates.
  • Perkinsus SL RNAs are longer than those of typical dinoflagellates.

Takeaway

Perkinsus is a type of tiny organism that is different from others in its group, and it has some special features that make it unique.

Methodology

The study analyzed the nuclear-encoded spliced-leader RNA and mitochondrial genes, intron prevalence, and multi-protein phylogenies.

Limitations

The analysis is limited to sequences from one or two species of Perkinsus.

Digital Object Identifier (DOI)

10.1371/journal.pone.0019933

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