The complete chloroplast genome of Catalpa ovata (Bignoniaceae): an important ornamental and medicinal plant

Abstract

Catalpa ovata is an ornamental tree species belonging to the Bignoniaceae family and also a valuable wood production plant. In this study, we sequenced the complete chloroplast genome of C. ovata and discussed its phylogenetic relationship. The complete chloroplast genome of C. ovata is 158,279 bp in size, comprising of a large single-copy (LSC, 85,004 bp) and a small single-copy (SSC, 12,675 bp) regions, separated by two inverted repeat regions (IRs, 30,300 bp each). The total GC content was 38.1%. The chloroplast genome contains 131 genes, including 86 protein-coding genes, 37 tRNA genes, and 8 rRNA genes. Phylogenetic analysis showed that the complete chloroplast genome sequence of C. ovata can be used as a super DNA barcoding to distinguish it from other plants. This study will provide genetic resources for species identification of C. ovata.

Keywords

• catalpa ovata
• chloroplast genome
• bignoniaceae
• phylogenetic analysis