The complete chloroplast genome sequence of Acer morrisonense (Aceraceae).

Acer morrisonense (Aceraceae) is an important forest tree species and is endemic to Taiwan area. In this study, we determined the complete nucleotide sequence of A. morrisonense chloroplast genome (cpDNA) by using next-generation sequencing. The cpDNA was 157 197 bp in size, contained a pair of 26 728 bp inverted repeat (IR) regions, which were separated by a large single copy region (LSC) and a small single copy (SSC) region of 85 655 and 18 086 bp, respectively. The cpDNA contained 134 genes, including 86 protein-coding genes (78 PCG species), 8 ribosomal RNA genes (four rRNA species), and 40 transfer RNA genes (31 tRNA species). The most of gene species occur as a single copy, while 21 gene species occur in double copies. The overall AT content of A. morrisonense chloroplast genome were 62.2%, while the corresponding values of the LSC, SSC, and IR regions were 64.0%, 67.9%, and 57.3%, respectively. The phylogenetic analysis suggested that the cpDNA of A. morrisonense is closely related to that of congeneric A. buergerianum subsp. ningpoense.