Characterization of the complete chloroplast genome of Populus deltoides Zhonglin 2025

The complete chloroplast genome of Populus deltoides was characterized by reference-based assembly using whole-genome sequencing data. The total chloroplast genome size of Populus deltoides included a pair of inverted repeat regions (IRs) of 27,649 bp each, a small single-copy region (SSC) of 16,563 bp, and large single-copy region (LSC) of 85,096 bp, which was 156,957 bp in length. A total of 109 genes were predicted from the chloroplast genome, including 83 protein-coding genes, 22 tRNA genes, and four rRNA genes. The GC content of chloroplast genome for Populus deltoides was 36.68%. The phylogenetic analysis based on the reported chloroplast genomes of Populus showed that the chloroplast of the Populus deltoides is most closely related to the Populus fremontii. The complete chloroplast genome of Populus deltoides provides new insights into Populus evolutionary and genomic studies.