The complete chloroplast genome of Zelkova schneideriana (Rosales: Ulmaceae), an Endangered species endemic to China

Abstract

Zelkova schneideriana Hand.-Mazz. (Ulmaceae) is an endangered species endemic to China. In this study, we reported its complete chloroplast (cp) genome based on Illumina pair-end sequencing. The whole genome was 158,999 bp long, consisting of a pair of inverted repeat (IR) regions of 26,427 bp, a large single copy (LSC) region of 87,397 bp and a small single copy (SSC) region of 18,748 bp. The cp genome contained 133 genes, including 88 protein-coding genes (80 PCG species), 37 tRNA genes (30 tRNA species), and eight rRNA genes (4 rRNA species). The overall G+C content of the whole genome was 35.6%, and the corresponding values of the LSC, SSC, and IR regions were 33.0, 28.3, and 42.4%, respectively. The maximum likelihood phylogenetic analysis of 25 selected chloroplast genomes demonstrated that Z. schneideriana was closely related to Ulmus macrocarpa and Ulmus pumila.

Keywords

• zelkova schneideriana
• endangered species
• chloroplast genome
• phylogenetic analysis