Class-level relationships in the phylum Cnidaria: evidence from mitochondrial genome structure.
- 15 September 1992
- journal article
- research article
- Published by Proceedings of the National Academy of Sciences in Proceedings of the National Academy of Sciences
- Vol. 89 (18) , 8750-8753
- https://doi.org/10.1073/pnas.89.18.8750
Abstract
The phylogenetic relationships of the Recent cnidarian classes remain one of the classic problems in invertebrate zoology. We survey the structure of the mitochondrial genome in representatives of the four extant cnidarian classes and in the phylum Ctenophora. We find that all anthozoan species tested possess mtDNA in the form of circular molecules, whereas all scyphozoan, cubozoan, and hydrozoan species tested display mtDNA in the form of linear molecules. Because ctenophore and all other known metazoan mtDNA is circular, the shared occurrence of linear mtDNA in three of the four cnidarian classes suggests a basal position for the Anthozoa within the phylum.Keywords
This publication has 5 references indexed in Scilit:
- Origin and Evolution of Mitochondrial DNAAnnual Review of Cell Biology, 1989
- Platyhelminth mitochondrial DNA: Evidence for early evolutionary origin of a tRNAserAGN that contains a dihydrouridine arm replacement loop, and of serine-specifying AGA and AGG codonsJournal of Molecular Evolution, 1989
- A technique for radiolabeling DNA restriction endonuclease fragments to high specific activityAnalytical Biochemistry, 1984
- Molecular identification and isolation of the Waxy locus in maizeCell, 1983
- The use of restriction endonucleases to measure mitochondrial DNA sequence relatedness in natural populationsJournal of Molecular Evolution, 1981