Characterization of the complete chloroplast genome of the Cortusa matthioli subsp. pekinensis (Primulaceae)

The complete chloroplast genome sequence of Cortusa matthioli subsp. pekinensis has been characterized using Illumina pair-end sequencing. The circular genome is 152,239 bp in length, containing a pair of inverted repeats (IRs) of 25,677 bp, separated by a large single copy (LSC) and a small single copy (SSC) region of 83,026 and 17,859 bp, respectively. It contains 131 genes, including 85 protein-coding genes (78 PCG species), 37 transfer RNA genes (28 tRNA species) and eight ribosomal RNA genes (four rRNA species). The most of gene species occur as a single copy, while 18 genes are duplicated. The nucleotide composition is asymmetric (31.1% A, 19.0% C, 18.2% G and 31.7% T) with an overall AT content of 62.8%. The corresponding values for the LSC, SSC and IR regions are 64.7, 69.8 and 57.2%, respectively. Phylogenetic analysis suggested that C. matthioli subsp. pekinensis is closely related to Primula species.