The complete plastid genome of Selaginella erythropus (Selaginellaceae), a species with distinctive giant chloroplasts

Chun Lin Huang, Jian Wei Liu, Jia Fang Ho, Ying Hsuan Sun, Chung Shien Wu, Peter Chesson, Chiou Rong Sheue

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


The plastid genome of the deep-shade plant Selaginella erythropus, which has highly unusual chloroplasts, was characterized using Illumina pair-end sequencing. This plastome is 140,151 bp in length with a large single-copy region (LSC) of 56,133 bp, a small single-copy region (SSC) of 61,268 bp, and two direct repeats (DRs) of 11,375 bp. The overall GC content is 50.68%, while those of LSC, SSC, and DR are 48.96%, 50.3%, and 55.96%, respectively. The plastome contains 102 genes, including 76 protein-coding, 15 tRNA (12 tRNA species), and 8 rRNA genes (4 rRNA species). The phylogenetic analysis shows that S. erythropus is closely related to S. moellendorffii and S. doederleinii. This result is consistent with the previous phylogenetic relationship inferred from multiple plastid and nuclear loci. However, only S. erythropus has the two-zoned giant chloroplast, the bizonoplast. The plastome provides an excellent reference for understanding the unique chloroplast differentiation in Selaginellaceae.

Original languageEnglish (US)
Pages (from-to)3369-3371
Number of pages3
JournalMitochondrial DNA Part B: Resources
Issue number12
StatePublished - 2021


  • Bizonoplast
  • direct repeats
  • giant chloroplast
  • phylogenetic analysis
  • subgenus Stachygynandrum

ASJC Scopus subject areas

  • Molecular Biology
  • Genetics


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