Abstract
This study was the first report complete chloroplast genome of Aster batangensis (Astereae: Asteraceae), the perennial herb endemic to China. The plastid genome of Aster batangensis include 132 unique genes, with 87 protein-coding genes, 37 tRNA genes, and 8 rRNA genes. Among these genes, 21 duplicate genes, including10 protein-coding genes, 7 tRNA genes, and 4 rRNA genes were detected. The complete genome size of Aster batangensis has a typical quadripartite circular structure with 152,605 bp in total length, consisting a large single copy (LSC) of 84,351 bp and a small single copy (SSC) of 18,212 bp, separated by a pair of invested repeats (IR) of 25,021 bp. The average GC content of whole plastome sequence is 37.3%, and the LSC, SSC and IR regions is 35.3%, 31.3%, and 43.0%, respectively. The phylogenetic analysis by the maximum likelihood method showed that A. batangensis was closely related to the other members of Astereae (e.g. Aztecaster matudae, Conyza bonariensis, Lagenophora cuchumatanica, Baccharis tricuneata, Baccharis genistelloides)
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