Abstract
Polyspora tiantangensis (Theaceae) is an endangered woody plant in southwestern China. In this study, we assembled complete chloroplast (cp) genome of P. tiantangensis based on the Illumina reads. The cp genome of P. tiantangensis is 157,057 bp in length, including a large single-copy (LSC) region of 86,593 bp and a small single-copy (SSC) region of 18,284 bp, separated by two inverted repeat (IR) regions of 26,090 bp each. The cp genome encoded 132 genes including 87 protein-coding genes, 37 tRNA genes, and eight rRNA genes. The GC content of cp genome of P. tiantangensis is 37.3%. A total of 68 SSRs were discovered. Phylogenetic analysis of cp genomes from 26 species of Theaceae revealed that all species of Polyspora formed one monophyletic clade and P. tiantangensis was closely related with its congeneric species P. longicarpa with 100% bootstrap value.
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