The complete mitochondrial genome of Acanthastrea maxima (Cnidaria, Scleractinia, Lobophylliidae)

Abstract

The complete nucleotide sequence of the mitochondrial genome of the scleractinian coral Acanthastrea maxima has been obtained, representing the first sequenced mitogenome of a member of the Lobophylliidae. The mitochondrial genome is 18,278  bp in length, the longest sequence among the robust corals sequenced mitogenome to date. The overall GC composition (33.7%) and the gene arrangement are similar to those of the other scleractinian corals, including 13 protein-coding genes, 2 rRNA genes (rnl and rns) and 2 tRNA genes (tRNA-Met and tRNA-Trp). All genes except tRNA-Trp, atp8, cox1, tRNA-Met and rnl are engulfed by a large group I intron in the nad5 gene. A second group I intron of 1077 bp in length is inserted in the cox1 gene and it encodes a putative homing endonuclease. There are four regions of gene overlaps totalling 22 bp and nine intergenic spacer regions for a total of 2220 bp, of which the cox3-cox2 region may correspond to the putative control region.

• Coral
• genome organization
• group I intron
• mitogenome
• threatened species

Acknowledgements

Creocean, Total and EPA, Socotra are acknowledged for allowing fieldwork in Socotra.

Declaration of interest

The authors report no conflicts of interest. The authors alone are responsible for the content and writing of the paper. This work was performed at Genoscope by Prometheus (ANR-09-PCS-GENM-217) and France Génomique (ANR-10-INPS-09) grants. The analyzed specimen (UNIMIB SO131, 18/03/2010, Qeso Shore, 12° 40.212′N 53° 26.893′E, Socotra Island, Yemen, Total Yemen Biodiversity project) is deposited at University of Milano-Bicocca (UNIMIB).