ABSTRACT
We sequenced and published the chloroplast genome of Commelina caroliniana Walter, which was previously misidentified as C. diffusa owing to their morphological similarities until 1989. The genome of C. caroliniana is 160,857 bp long [large single copy region: 88,064 bp; a small single copy region: 18,549 bp; two inverted repeat regions: 27,122 bp] and has a GC content of 35.7%. The genome comprises 133 genes, including 87 coding sequences (CDSs), 38 tRNAs, and eight rRNAs. The phylogenetic relationship between C. caroliniana and related species was analyzed using the maximum likelihood method based on the 79 CDSs of the chloroplast genome. Phylogenetic analysis revealed that C. caroliniana is closely related to C. communis. Our findings will contribute to studies on species identification and phylogenetic and evolutionary research. These results enhance our understanding of the Commelina genus.
ABSTRACT
Polygonatum infundiflorum Y.S. Kim, B.U. Oh & C.G. Jang et al. 1998 is a Korean endemic species. This is first report on the complete chloroplast genome sequence of P. infundiflorum. The complete chloroplast genome length was 154,578 bp with a GC content of 37.7%. The large single-copy (LSC) region was 83,527 bp long, and the small single-copy (SSC) region was 18,457 bp long. The paired inverted repeats (IRs) were 26,297 bp and separated the LCS and SSC regions. There were 113 genes, comprising 78 protein-coding genes, four rRNA genes, 30 tRNA genes, and one pseudogene (infA). In total, 16 genes contained one intron, and two genes contained two introns. Phylogenetic analysis suggested that Polygonatum was divided into three sections, each forming a monophyletic group. P. infundiflorum was sister to P. macropodum and formed a monophyletic group with P. inflatum. This study provides basic information for future research and contributes to taxonomic and genetic studies on Polygonatum.
