Complete chloroplast genome sequence and phylogenetic analysis of Sinojackia sarcocarpa, an endemic plant in Southwest China

Sinojackia sarcocarpa is an endangered plant endemic to China. Here, the complete chloroplast genome of S. sarcocarpa was sequenced and characterized. The total genome size is 158,737 bp, with a typical quadripartite structure including a pair of inverted repeat regions (IRs, 26,090 bp) separated by a large single copy (LSC, 88,002 bp) region and a small single copy (SSC, 18,555 bp) region. The genome contains 137 genes, including 90 protein-coding genes, 38 transfer RNA genes, and 8 ribosomal RNA genes. Phylogenetic analysis revealed that S. sarcocarpa is closely related to Sinojackia xylocarpa and Sinojackia rehderiana, but forms an independent evolutionary branch.