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Mitochondrial cytochrome b sequence data are not an improvement for species identification in scleractinian corals.


ABSTRACT: There are well-known difficulties in using the cytochrome oxidase I (COI) mitochondrial gene region for population genetics and DNA barcoding in corals. A recent study of species divergence in the endemic Caribbean genus Agaricia reinforced such knowledge. However, the growing availability of whole mitochondrial genomes may help indicate more promising gene regions for species delineation. I assembled the whole mitochondrial genome for Agaricia fragilis from Illumina single-end 250 bp reads and compared this sequence to that of the congener A. humilis. Although these data suggest that the cytochrome b (CYB) gene region is more promising, comparison of available CYB sequence data from scleractinian and other reef-building corals indicates that multilocus approaches are still probably necessary for phylogenetic and population genetic analysis of recently-diverged coral taxa.

SUBMITTER: Wares JP 

PROVIDER: S-EPMC4168843 | biostudies-literature | 2014

REPOSITORIES: biostudies-literature

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Mitochondrial cytochrome b sequence data are not an improvement for species identification in scleractinian corals.

Wares John P JP  

PeerJ 20140909


There are well-known difficulties in using the cytochrome oxidase I (COI) mitochondrial gene region for population genetics and DNA barcoding in corals. A recent study of species divergence in the endemic Caribbean genus Agaricia reinforced such knowledge. However, the growing availability of whole mitochondrial genomes may help indicate more promising gene regions for species delineation. I assembled the whole mitochondrial genome for Agaricia fragilis from Illumina single-end 250 bp reads and  ...[more]

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