Characterization of the complete chloroplast genome of (Zamiaceae), an Endangered monotypic cycad species from Cuba.

is the monotypic species from the critical endangered and endemic cycad genus in Cuba, an important taxon to study the evolution of extant gymnosperms. Here we report the complete chloroplast sequences of and characterize the genome structure of this species. The genome size of is 165,667 bp in length which contains 135 genes, including 88 protein-coding genes, eight ribosomal RNA genes and 39 transfer RNA genes. The GC content of this genome is 39.6%. Phylogenomic study shows is mostly closely related to the cycad genus , which corresponds to previous studies based on multiple nuclear genes and combined plastid and nuclear evidence. The plastome information of offered by this study can contribute to further comparative chloroplast genome in cycads/gymnosperms as well as conservation genetic studies of .