The Complete Mitochondrial Genome Ofmeretrix Lusoria(Bivalvia: Veneroida: Veneridae) From Kumamoto, Japan

We sequenced and assembled the complete mitochondrial genome sequence of theMeretrix lusoria, from Kumamoto, Japan. The length of mitogenome is 20,180 bp, including 13 protein-coding genes, two ribosomal RNA genes, and 22 transfer RNA genes. The nucleotide composition of the mitogenome was 25.73% for A, 42.41% for T, 9.35% for C, and 22.49% for G. The AT and GC skewness of mitogenome sequence are -0.245 and 0.412, showing the T-skew and G-skew. The reconstructed phylogenetic relationships of 25 Bivalvia species based on 12 protein-coding genes were highly supported and the clade of allMeretrixclams included had a support value of 99%. Our results shall provide a better understanding in the evolutionary histories of the Veneroida and relative species.