Characterization of the complete chloroplast genome sequence of Chinese endemic species of Aster batangensis (Asteraceae: Astereae) and its phylogenetic implications

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 )

Characterization and phylogenetic analysis of the complete chloroplast genome of Asterothamnus centraliasiaticus Novopokr. (Asteraceae: Asterothamnus )

“…The following sequences of each species were used: Aster albescens NC063953.1, Aster argyropholis NC063954, Aster polius NC063453, Aster yunnanensis NC069917, Aster procerus NC069914.1, Aster pycnophyllus NC069915.1, Aster fanjingshanicus ON055287.1, Aster spathulifolius MN539621.1 (Choi and Park 2015 ), Aster indicus NC040126.1, Aster batangensis MZ292735 (Xie et al. 2021 ), Aster lavandulifolius MZ474495, Aster sampsonii NC058574.1 (Chang et al. 2021 ), Aster poliothamnus NC0796264.1, Medicago truncatula NC003119.8, Medicago arabica MZ905469.1 (Jiao et al.…”