Abstract
Hevea pauciflora belongs to the Euphorbiaceae family, an important wild relative of the rubber tree. This study sequenced, assembled, and annotated the complete chloroplast genome of H. pauciflora. The complete chloroplast genome is 161,123 bp with a canonical quadripartite structure containing a large single-copy (LSC) region (89,109 bp), a small single-copy (SSC) region (18,376 bp), and two inverted repeat regions (IRa and IRb) (26,819 bp, each). A total of 134 genes were annotated, including 86 protein-coding genes, four pseudogenes, 36 tRNA genes, and eight rRNA genes. The 134 genes include four major groups: ‘self-replication’, ‘photosynthesis’, ‘unknown function’, and ‘others’. A phylogenetic analysis clustered H. pauciflora, H. brasiliensis, H. camargoana, and H. benthamiana into one clade, consistent with traditional taxonomy. This study provides useful data for further studies of Hevea genus and the phylogenetic relationships of Euphorbiaceae species.
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