Complete chloroplast genome of Isoetes sinensis, an endemic fern in China.

ABSTRACT: Isoetes sinensis is the only aquatic pteridophyte in China with high research value of phylogeny. It is in endangered status. A conservation strategy is therefore imperative for this endangered pteridophyte. In the study, the complete chloroplast (cp) genome of Isoetes sinensis (Isoetaceae) was assembled and annotated. It is the full length of 145,492?bp, include large single-copy (LSC) region of 91,865?bp, small single-copy (SSC) region of 13,207?bp, and a pair of invert repeats (IR) regions of 27,213?bp. Plastid genome contains 135 genes, 71 protein-coding genes, 36 tRNA genes, and eight rRNA genes. Phylogenetic analysis suggested I. sinensis was most closely related to the clade of I. melanospora, I. mattaponica, I. graniticola, I. engelmannii, I. flaccida, I. valida, and I. butleri, with strong support (bootstrap = 100%). The cp genome will contribute to further research and conservation of I. sinensis.

SUBMITTER: Xie Y 

PROVIDER: S-EPMC7706795 | biostudies-literature | 2019 Sep

REPOSITORIES: biostudies-literature