The complete chloroplast genome sequences of Pinus sibirica Du Tour

The complete nucleotide sequence of Pinus sibirica Du Tour chloroplast genome (cp DNA) was determined in this study. The cpDNA was 116,635 bp in length, containing a pair of 473 bp inverted repeat (IR) regions (IRa and IRb), which were separated by large and small single-copy regions (LSC and SSC) of 63,908 and 51,781 bp, respectively. The cpDNA contained 113 genes, including 81 protein-coding genes, 4 ribosomal RNA genes, and 28 tRNA genes. The majority of these genes were single copy genes, while 4 genes existed as double copies, including 2 protein-coding genes (psbA and ycf2), 2 tRNA genes (trnAP and trnS). The overall GC content of P. sibirica cpDNA is 38.7%, while the corresponding values of the LSC, SSC, and IR regions are 38.0, 39.7, and 37.8%, respectively. The phylogenetic analysis confirmed clusterization of P. sibirica in Strobus subgenus.