Chloroplast genome features and phylogenomic placement of var. (Rosaceae).

The complete chloroplast genome of var. was sequenced with Illumina HiSeq 2000 platform. It was a typical quadruple structure as other plants of with 160,050 bp in length, including a large single-copy (LSC: 87,905 bp) region and a small single-copy (SSC: 19,325 bp) which were separated by a pair of inverted repeats (IRa, b: 26,410 bp) region. The overall GC content is 36.5%. A total of 130 genes was annotated which contained 85 protein-coding genes including the Trans splicing gene of 12, 37 tRNA genes, and 8 rRNA genes. ML phylogenetic analysis compared with 7 expressed chloroplast genomes of Rosaceae revealed that var. was a sister to other species. Six species of were divided into two groups, the species of group one is distributed in Asia and the species of group two distributed in Europe. Among group one, var. had the closest genetic relationship with which is a New Endemic Species on Ulleung Island of Korea, and followed by which is only distributed in Sichuan and Guizhou of China. var. has a relatively close relationship with the other three species of in the group two. And, it has a relatively distant from other genera of and .