Complete chloroplast genome of Abutilon indicum (L.) Sweet and comparative chloroplast genomics of Malvoideae
Thi Thanh Nga Le and Hoang Dang Khoa Do
Abstract: A. indicum Sweet, commonly known as Indian mallow, is a member of the family Malvaceae and possesses both ornamental and medicinal properties. Although this species has been utilized in folk medicine, the lack of genomic data has hindered further studies on A. indicum. Consequently, the current study sequenced and characterized the chloroplast genome of A. indicum. This genome is 160,066 bp in length, with a GC content of 36.99%, and exhibits a quadripartite structure comprising a large single-copy (88,733 bp), a small single-copy (20,037 bp), and two inverted repeats (25,648 bp each). Comparative analyses revealed conservation in genome structure, gene content, and repeat compositions among Abutilon chloroplast genomes. Additionally, six hyper- variable regions were identified among the examined Malvoideae chloroplast genomes, including accD, matK-trnK-UUU, ndhA, ndhD, rps12-clpP1, and ycf1. Phylogenetic analysis indicated the paraphyletic status of the Abutilon genus.