Complete mitochondrial genome of the brain coral <i>Platygyra daedalea</i> (Ellis &amp; Solander, 1786)

<i>Platygyra daedalea</i> Ellis & Solander, 1786, is a dominant species within the world's warmest reefs, making it a critical model for investigating coral stress resistance and adaptive evolutionary mechanisms. This study presents the first sequenced and annotated mitogenome of the reef-building coral <i>P. daedalea</i>. The mitogenome is 16,363 bp in length, containing 13 protein-coding genes, two ribosomal RNA genes, and two transfer RNA genes. The base composition is 24.8% adenine (A), 13% cytosine (C), 20.4% guanine (G), and 41.8% thymine (T), with a G-C content of 33.4%. We conducted a comparative analysis between <i>P. daedalea</i> and <i>P. carnosa</i>. Notably, genetic variations in the <i>ND5</i> and <i>COXI</i> genes emerge as potential markers for distinguishing species within the <i>Platygyra</i> genus. Additionally, the protein-coding gene ND6 has been subjected to strong selective pressure. Phylogenetic analysis based on the complete mitogenome aligns with the internal clade structure of Scleractinia reported in previous studies, reinforcing the evolutionary insights provided by this dataset.