Abstract
The complete chloroplast (cp) genome of Caulerpa sertularioides f. longipes was first assembled and characterized using Illumina pair-end sequencing from the South China Sea. It is 133,626 bp long, with a GC content of 32.94%. In total, 92 genes were identified in the genome, and they consisted 60 protein-coding genes (PCGs), 30 tRNA genes, and 2 rRNA genes. Like other species in Caulerpa, the whole cp genome of C. sertularioides f. longipes did not demonstrate an obvious quadripartite structure. A total of 31 microsatellites (SSRs) were identified in the cp genome using MISA. A phylogenetic tree revealed that C. sertularioides f. longipes was closer to Caulerpa cupressoides, which further clarified the phylogenetic relationships of species in Caulerpa.