The complete mitochondrial genome of a transitional form in secondary endosymbiotic Cryptophyte algae Guillardia theta strain CCMP2712

The complete mitochondrial genome of Guillardia theta strain CCMP2712 was sequenced, assembled, and annotated in this study. The circular genome is 35,013bp in size and it contains 36 protein-coding genes (PCGs), 28 transfer RNA genes (tRNA), and 2 ribosomal RNA genes (rRNA). The overall GC contents of the mitochondrial genome are 28.9%. The phylogenetic tree was constructed to validate the taxonomic relationship based on the complete mitogenomes of G. theta strain CCMP2712 through combining with seven Cryptophyta and four Heterokontophyta algae. The complete mitochondrial genome of the Guillardia theta strain CCMP2712 will provide more information for the evolution of secondary endosymbiotic species.