The complete plastid genome of Zenia insignis Chun (Leguminosae).

Zenia insignis Chun is a rare and threatened species of the monotypic genus Zenia Chun in the subfamily Dialioideae of Leguminosae. The complete plastid genome of Zenia insignis was sequenced for the first time which also represents the first complete plastid genome of the subfamily Dialioideae. The total length of this genome is 159,358 bp with a large single copy (LSC) region (88,507 bp), a small single copy (SSC) region (18,689 bp), and two inverted repeat regions (IRs, 26,081 bp). We recovered 128 functional genes, including 83 protein-coding genes, 37 tRNA genes and 8 rRNA genes. Phylogenetic analysis strongly supported a sister relationship between Z. insignis and the clade consisting of Caesalpinioideae and Papilionoideae.