The complete chloroplast genome sequence of Senna bicapsularis

The complete chloroplast genome sequence of Senna bicapsularis was characterized from Illumina pair-end sequencing. The chloroplast genome of S. bicapsularis was 161,056 bp in length, containing a large single-copy region (LSC) of 90,416 bp, a small single-copy region (SSC) of 18,538 bp, and two inverted repeat (IR) regions of 26,051 bp. The overall GC content is 36.20%, while the correponding values of the LSC, SSC, and IR regions are 64.5%, 69.4%, and 60.2%, respectively. The genome contains 129 complete genes, including8 rRNAs, 37 tRNAs and 84 protein coding genes. A phylogenetic analysis showed that Senna tora and Erythrophleumfordiiform the basis of the produced evolutionary tree. S.bicapsularis and S. occidentalis, which belongto the group Cassia, share the closest relationship. The analysis of the cp genome of S.bicapsularisprovides crucial genetic information for further studies of this precious species and the taxonomy, phylogenetics and evolution of Cassia.