The complete chloroplast genome sequence of Populus szechuanica, a medicinal plant for child anesthesia application

Populus szechuanica C.K. Schneid. is used for wind and sand fixation, farmland protection, soil and water conservation. And some varieties bud fat and inflorescence are available for medicinal use; poplar bark contains tannin and can be used as tanning material. It is also widely used in afforestation and greening in cities across China. In addition, the P. szechuanica also showed vital important application values on the child anesthesia, which could significantly reduce the occurrence of hypotension after anesthesia. The complete chloroplast genome sequence of P. szechuanica was characterized from Illumina pair-end sequencing. The chloroplast genome of P. szechuanica was 156,717 bp in length, containing a large single-copy region (LSC) of 84,900 bp, a small single-copy region (SSC) of 16,527 bp, and two inverted repeat (IR) regions of 27,645 bp. The overall GC content is 36.70%, while the corresponding values of the LSC, SSC, and IR regions are 34.5%, 30.7%, and 41.9%, respectively. The genome contains 131 complete genes, including 86 protein-coding genes (68 protein-coding gene species), 37 tRNA genes (29 tRNA species) and 8 rRNA genes (4 rRNA species). The Maximum Likelihood phylogenetic analysis showed that P. szechuanica and P. koreana clustered together as sisters to other Populus species.