Phylogenetic Information Content of Copepoda Ribosomal DNA Repeat Units : ITS1 and ITS2 Impact
Joint Authors
Lazareva, Valentina I.
Grishanin, Andrey K.
Mukha, Dmitry V.
Zagoskin, Maxim V.
Source
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-15, 15 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-08-18
Country of Publication
Egypt
No. of Pages
15
Main Subjects
Abstract EN
The utility of various regions of the ribosomal repeat unit for phylogenetic analysis was examined in 16 species representing four families, nine genera, and two orders of the subclass Copepoda (Crustacea).
Fragments approximately 2000 bp in length containing the ribosomal DNA (rDNA) 18S and 28S gene fragments, the 5.8S gene, and the internal transcribed spacer regions I and II (ITS1 and ITS2) were amplified and analyzed.
The DAMBE (Data Analysis in Molecular Biology and Evolution) software was used to analyze the saturation of nucleotide substitutions; this test revealed the suitability of both the 28S gene fragment and the ITS1/ITS2 rDNA regions for the reconstruction of phylogenetic trees.
Distance (minimum evolution) and probabilistic (maximum likelihood, Bayesian) analyses of the data revealed that the 28S rDNA and the ITS1 and ITS2 regions are informative markers for inferring phylogenetic relationships among families of copepods and within the Cyclopidae family and associated genera.
Split-graph analysis of concatenated ITS1/ITS2 rDNA regions of cyclopoid copepods suggested that the Mesocyclops, Thermocyclops, and Macrocyclops genera share complex evolutionary relationships.
This study revealed that the ITS1 and ITS2 regions potentially represent different phylogenetic signals.
American Psychological Association (APA)
Zagoskin, Maxim V.& Lazareva, Valentina I.& Grishanin, Andrey K.& Mukha, Dmitry V.. 2014. Phylogenetic Information Content of Copepoda Ribosomal DNA Repeat Units : ITS1 and ITS2 Impact. BioMed Research International،Vol. 2014, no. 2014, pp.1-15.
https://search.emarefa.net/detail/BIM-508674
Modern Language Association (MLA)
Zagoskin, Maxim V.…[et al.]. Phylogenetic Information Content of Copepoda Ribosomal DNA Repeat Units : ITS1 and ITS2 Impact. BioMed Research International No. 2014 (2014), pp.1-15.
https://search.emarefa.net/detail/BIM-508674
American Medical Association (AMA)
Zagoskin, Maxim V.& Lazareva, Valentina I.& Grishanin, Andrey K.& Mukha, Dmitry V.. Phylogenetic Information Content of Copepoda Ribosomal DNA Repeat Units : ITS1 and ITS2 Impact. BioMed Research International. 2014. Vol. 2014, no. 2014, pp.1-15.
https://search.emarefa.net/detail/BIM-508674
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-508674