The complete chloroplast genome of Populus tomentosa narrow crown, native to Northern China

摘要

Populus tomentosa narrow crown [P. tomentosa (NC)], natural distributes in northern China, is an economically important ecotype of P. tomentosa . In this study, we assembled its complete chloroplast (cp) genome. The total genome size of P. tomentosa (NC) is 156,368 bp in length, containing a large single copy region of 84,623?bp, a small single copy region of 16,533?bp, and a pair of inverted repeat regions of 27,606?bp. We annotated 130 genes in the genome, including 85 protein-coding genes, 37 tRNA genes, and 8 rRNA genes, 12 genes of which have 1 intron and 3 genes contain 2 introns. The overall GC content of the whole genome is 36.8%. Phylogenetic analysis using 24 complete cp genome of Salicaceae suggested that P. tomentosa (NC) is most closely related to P. alba. var. pyramidalis .