Abstract

The mitochondrial genome of the long-spined black sea urchin, Diadema antillarum, was sequenced using Illumina next-generation sequencing technology. The complete mitogenome is 15,708bp in length, containing two rRNA, 22 tRNA and 13 protein-coding genes, plus a noncoding control region of 133bp. The nucleotide composition is 18.37%G, 23.79%C, 26.84%A and 30.99%T. The A + T bias is 57.84%. Phylogenetic analysis based on 12 complete mitochondrial genomes of sea urchins, including four species of the family Diadematidae, supported familial monophyly; however, the two Diadema species, D.antillarum and D.setosum were not recovered as sister taxa.

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