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Genetic differentiation of the mitochondrial cytochrome oxidase C subunit I gene in genus Paramecium (Protista, Ciliophora).


ABSTRACT:

Background

The mitochondrial cytochrome c oxidase subunit I (COI) gene is being used increasingly for evaluating inter- and intra-specific genetic diversity of ciliated protists. However, very few studies focus on assessing genetic divergence of the COI gene within individuals and how its presence might affect species identification and population structure analyses.

Methodology/principal findings

We evaluated the genetic variation of the COI gene in five Paramecium species for a total of 147 clones derived from 21 individuals and 7 populations. We identified a total of 90 haplotypes with several individuals carrying more than one haplotype. Parsimony network and phylogenetic tree analyses revealed that intra-individual diversity had no effect in species identification and only a minor effect on population structure.

Conclusions

Our results suggest that the COI gene is a suitable marker for resolving inter- and intra-specific relationships of Paramecium spp.

SUBMITTER: Zhao Y 

PROVIDER: S-EPMC3812207 | biostudies-literature | 2013

REPOSITORIES: biostudies-literature

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Publications

Genetic differentiation of the mitochondrial cytochrome oxidase C subunit I gene in genus Paramecium (Protista, Ciliophora).

Zhao Yan Y   Gentekaki Eleni E   Yi Zhenzhen Z   Lin Xiaofeng X  

PloS one 20131029 10


<h4>Background</h4>The mitochondrial cytochrome c oxidase subunit I (COI) gene is being used increasingly for evaluating inter- and intra-specific genetic diversity of ciliated protists. However, very few studies focus on assessing genetic divergence of the COI gene within individuals and how its presence might affect species identification and population structure analyses.<h4>Methodology/principal findings</h4>We evaluated the genetic variation of the COI gene in five Paramecium species for a  ...[more]

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