Abstract

In this study, the complete mitochondrial genome of Heliocidaris crassispina was determined on Illumina HiSeq platform. The genome was 15,678 bp in size and contains 22 tRNA genes, 13 protein-coding genes, 2 rRNA genes and 1 control region (96 bp). The composition of A + T in H. crassispina mtDNA was 59.11%. Except ND6 and 5 tRNAs, the others are on the H-strand. The phylogenetic relationship of 11 species of sea urchins was analyzed using the neighbour-joining method by software MEGA 7.0. H. crassispina was most closely related to Pseudocentrotus depressus.

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