Characterization of the Complete Chloroplast Genomes of Sequences of Two Diploid Species: Paeonia lactiflora ‘Da Fugui’ and Paeonia ostii ‘Fengdan’ in the Paeoniaceae Family

Paeonia ostii ‘Fengdan’ and Paeonia lactiflora ‘Da Fugui’ are two species of the same genus that are closely related. Paeonia ostii ‘Fengdan’ has a high nutritional and health value in woody oil crops, and is also a good parent material for intraspecific and interspecific hybridization; Paeonia lactiflora ‘Da Fugui’ is a kind of peony variety with high ornamental value. Both ‘Fengdan’ and ‘Da Fugui’are diploid species. The complete cp genome sizes of Paeonia ostii ‘Fengdan’ and Paeonia lactiflora ‘Da Fugui’ were 152731 and 157372bp, respectively. Paeonia ostii ‘Fengdan’ Small Single Copy Area (SSC) is 16968 bp, the Large Single Copy Area (LSC) is 84402 bp, the Inverse Repeat region (IR) is 25681 bp. Paeonia ostii ‘Fengdan’ encods a total of 151 genes, including 101 protein-coding genes, 43 tRNA genes and 7 rRNA genes. In addition, the Paeonia lactiflora ‘Da Fugui’ Small Single Copy Area (SSC) is 14822 bp, the Large Single Copy Area (LSC) is 82,043 bp, the Ieverse Repeat region (IR) is 30254 bp. Paeonia lactiflora ‘Da Fugui’ encods a total of 165 genes, including 110 protein-coding genes, 47 tRNA genes and 8 rRNA genes. The cluster analysis of the NJ(Neighbor-joining) tree showed that Paeoniae genus is distributed in a large branch, and is closely related to the other three genera. Paeonia ostii ‘Fengdan’ and Paeonia sp. Sd0052 are clustered together with herbaceous peony, while Paeonia lactiflora ‘Da Fugui’ is clustered more closely to peony