Complete plastome sequence of Reevesia pycnantha Y. Ling (Malvaceae): a rare medicinal tree species in South Asia

Abstract

Here, we report and characterize the complete plastome of Reevesia pycnantha, Y. Ling 1951, which is a rare tree in the plant family Malvaceae. It is distributed in central and southern Jiangxi, Fujian, Guangdong, Hunan, and other provinces of China, where it is endemic. It grows in subtropical climates at middle and low altitudes of 200-800 meters within valleys, along mountain foothills, or on hillsides, in evergreen broad-leaved forests or at forest edges. Our results show that the length of the complete plastome is 161,964 bp, including 129 genes consisted of 81 protein-coding genes, 37 tRNA genes and 8 rRNA genes. It exhibits the typical quadripartite structure and gene content of angiosperms plastomes and comprises two inverted repeat (IRS) regions of 2,469 bp, a large single copy (LSC) region of 90,657 bp, and a small single-copy (SSC) region of 20,315 bp. The total G/C content in the plastome of R. pycnantha,Y. Ling 1951 is 36.8%. The complete plastome sequence of R. pycnantha, Y. Ling 1951will make contributions to the conservation genetics of this species as well as to phylogenetic studies in Malvaceae.

Keywords: Malvaceae; Reevesia pycnantha Y. Ling 1951; genome structure; plastome.

Figure 1.

The ML phylogeny of 13 complete plastome sequences of Malvales including the newly sequenced Reevesia pycnantha, Y. Ling 1951. Numbers adjacent to nodes represent bootstrap support values and numbers right of terminal taxon names represent GenBank accession numbers. To the far right, subfamily affiliation within Malvaceae is shown.