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Published on: March 8, 2018
The complete chloroplast genome sequence and phylogenetic position of Causonis japonica (Thunb.) Raf. (Vitaceae)
Can Zheng1, Tianzhe Sun1, Jiangwei Zheng1
1School of Life Science and Technology, Wuhan Polytechnic University, Wuhan, China.
Abstract:
Causonis japonica (Thunb.) Raf. 1838 (Vitaceae), the type species of the genus Causonis, holds notable medicinal and systematic value. In this study, we present the complete chloroplast genome of C. japonica (158,414 bp), which exhibits the conserved four-part structure typical of angiosperms-comprising a large single-copy (LSC, 87,629 bp) region, a small single-copy (SSC, 19,101 bp) region, and two inverted repeats (IRa/IRb, 25,842 bp each). The chloroplast genome contains 139 annotated genes, including 92 protein-coding genes, 39 tRNA genes, and 8 rRNA genes, with an overall GC proportion of 37%. Phylogenomic inference based on complete chloroplast sequences of Vitaceae confirms C. japonica as an independent evolutionary lineage, distinct from Cissus and Tetrastigma.
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