| Summary: | Ageratum conyzoides L. is an important Chinese medicinal plant. In this study, we reported the complete chloroplast genome of A. conyzoides. The chloroplast genome sequence is 151,309 bp in length and consisted of a large single copy (LSC) region (83,884 bp), a small single copy (SSC) region (17,771 bp), and two inverted repeats (IRs) (24,827 bp). It was composed of 126 genes and they were 81 protein-coding genes, 30 tRNA genes, 8 rRNA genes, and 7 pseudogene. Phylogenetic analysis with reported chloroplast genomes can not only show that A. conyzoides has a close genetic relationship with Centaurea diffusa and Carthamus tinctorius, but also provide new evidence for the identification of Praxelis clematidea and A. conyzoides.
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