Characterization of the complete chloroplast genome of Idesia polycarpa

The whole chloroplast (cp) genome sequence of Idesia polycarpa has been characterized from Illumina pair-end sequencing. The complete cp genome was 157,017 bp in length, containing a large single copy region (LSC) of 84,787 bp and a small single copy region (SSC) of 16,512 bp, which were separated by a pair of 27,859 bp inverted repeat regions (IRs). The genome contained 130 genes, including 86 protein-coding genes (77 PCG species), 36 tRNA genes (29 tRNA species) and 8 ribosomal RNA genes (4 rRNA species). The most of gene species occur as a single copy, while 20 gene species occur in double copies. The overall AT content of I. polycarpa cp genome is 63.3 %, while the corresponding values of the LSC, SSC and IR regions are 65.5, 69.4 and 58.1 %, respectively. Further, phylogenetic analysis suggested that I. polycarpa is closely related to the genera of Salix and Populus.