The complete chloroplast genome sequence of Populus davidiana, and a comparative analysis with other Populus species

Abstract

Populus davidiana plays an important ecological role in boreal and temperate forests, serving as wildlife habitats and watersheds. The complete chloroplast genome sequence of P. davidiana was characterized from Illumina pair-end sequencing. The chloroplast genome of P. davidiana was 155,325 bp in length, containing a large single-copy region (LSC) of 84,679 bp, a small single-copy region (SSC) of 16,862 bp, and two inverted repeat (IR) regions of 26,892 bp. The overall GC content is 36.80%, while the corresponding values of the LSC, SSC, and IR regions are 34.5%, 30.5%, and 42.5%, respectively. The genome contains 131 complete genes, including 86 protein-coding genes (62 protein-coding gene species), 37 tRNA genes (29 tRNA species), and 8 rRNA genes (4 rRNA species). The neighbour-joining phylogenetic analysis showed that P. davidiana and P. hopeiensis clustered together as sisters to other Populus species.

Keywords:

• Populus davidiana
• chloroplast genome
• phylogenetic analysis
• genetic information

Disclosure statement

No potential conflict of interest was reported by the author(s).

Data availability statement

The data that support the findings of this study are openly available National Genomics Data Center at https://bigd.big.ac.cn/search?dbId=gwh&q=GWHAMJQ01000000, accession number GWHAMJQ01000000.

Additional information

Funding

Financial support for this research was provided by the Science and Technology Research Project of Chongqing Education Commission [KJQN201801336].