Eimeria trichosuri: Phylogenetic position of a marsupial coccidium, based on 18S rDNA sequences

Phylogenetic analysis of the genus Eimeria suggests that parasite and host have coevolved over broad evolutionary timescales. Here we extend this analysis by determining the 18S rDNA gene sequence of the marsupial coccidium, Eimeria trichosuri, and assessing its phylogenetic position relative to Eim...

Full description

Saved in:
Bibliographic Details
Published in:Experimental parasitology 2009-06, Vol.122 (2), p.165-168
Main Authors: Power, M.L., Richter, C., Emery, S., Hufschmid, J., Gillings, M.R.
Format: Article
Language:English
Subjects:
18S rDNA
Animals
Base Sequence
Biological and medical sciences
Cloning, Molecular
Coccidiosis - parasitology
Coccidiosis - veterinary
DNA, Ribosomal - chemistry
Eimeria
Eimeria - classification
Eimeria - genetics
Eimeria - ultrastructure
Feces - parasitology
Fundamental and applied biological sciences. Psychology
Life cycle. Host-agent relationship. Pathogenesis
Mammalia
Marsupial
Marsupialia - parasitology
Molecular Sequence Data
Oocysts - ultrastructure
Phylogeny
Polymerase Chain Reaction - veterinary
Protozoa
RNA, Ribosomal, 18S - genetics
Sequence Alignment - veterinary
Sequence Analysis, DNA - veterinary
Vertebrates: general zoology, morphology, phylogeny, systematics, cytogenetics, geographical distribution
Victoria
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Phylogenetic analysis of the genus Eimeria suggests that parasite and host have coevolved over broad evolutionary timescales. Here we extend this analysis by determining the 18S rDNA gene sequence of the marsupial coccidium, Eimeria trichosuri, and assessing its phylogenetic position relative to Eimeria from birds, reptiles and placental mammals. This analysis placed E. trichosuri clones in a clade that diverged before the major clade comprising species from placental mammals. The position of E. trichosuri is consistent with host phylogeny where marsupials represent an ancient evolutionary line that predates the placental mammal line.
ISSN:0014-4894
1090-2449
DOI:10.1016/j.exppara.2009.02.008