Abstract
Casuarina cunninghamiana Miq. naturally occurs in eastern Australia from New South Wales to north Queensland. After being introduced to China, it has become an important tree species of ecological shelter plantations in coastal areas of southern China. In this study, the complete chloroplast (cp) genome of C. cunninghamiana was sequenced and analyzed based on the Illumina NovaSeq 6000 platform. The cp genome of C. cunninghamiana was found to be 15,6129 bp in length, including a large single copy (LSC) region of 86,200 bp and a small single copy (SSC) region of 18,457 bp, which were separated by two inverted repeats (IRs) of 25,736 bp. The cp genome contains 132 genes, consisting of 87 protein-coding genes, 37 tRNA genes, and eight rRNA genes. The overall GC content of the cp genome was 36.34%. The phylogenetic analyses indicated that C. cunninghamiana was closely related to C. glauca and C. equisetifolia and clustered with 4 Betulaceae species.
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