Sequencing of the complete plastome of the thermal adder's-tongue fern, Ophioglossum thermale Kom. (Ophioglossaceae).

ABSTRACT: The Ophioglossaceae family, one of the oldest orders of extant ferns, exhibits diverse morphological and chromosomal characteristics. This study presents the first complete plastome sequence of thermal adder's-tongue fern (Ophioglossum thermale), a species renowned for its antioxidant properties in traditional Chinese medicine. Our analyses revealed 27 simple sequence repeats (SSRs) in the plastome, with variations in SSR frequencies compared to related genera. Our phylogenetic analyses placed O. thermale within the Ophioglossum s.s. clade, supporting previous studies and suggesting polyphyly within the genus Ophioglossum based on the sensu PPG I system. The enlarged noncoding regions in fern organelles (ENRFOs) resulting from foreign DNA insertions in O. the

SUBMITTER: Kim HT 

PROVIDER: S-EPMC11328810 | biostudies-literature | 2024

REPOSITORIES: biostudies-literature