The complete mitochondrial genome of Riccia fluitans L. (Ricciaceae, Marchantiophyta): investigation of intraspecific variations on mitochondrial genomes of R. fluitans

Mitochondrial DNA B Resour. 2020 Feb 28;5(2):1220-1222. doi: 10.1080/23802359.2020.1730728. eCollection 2020.

Abstract

Riccia fluitans L. is the most common species in Riccia genus. To investigate intraspecific variations on mitochondrial genomes of R. fluitans, we completed mitochondrial genome of R. fluitans. Its length is 185,640 bp, longer than that of NC_043906 by 19 bp and it contains 74 genes (42 protein-coding genes, 3 rRNAs, 28 tRNAs, and 1 pseudogene). 18 single nucleotide polymorphisms (SNPs) and 19 insertions and deletions are identified, higher than that of Marchantia polymorpha subsp. ruderalis. One non-synonymous SNP is found in ccmFN. Phylogenetic trees show that R. fluitans is clustered with Dumortiera hirsuta, requiring additional mitogenome to clarify the phylogenetic relationship.

Keywords: Riccia fluitans; Ricciaceae; ccmFN; intraspecific variation; mitochondrial genome.

Grants and funding

This work was supported by InfoBoss Research Grant [IBG-0027] and ‘The Consortium of Korea Biodiversity and Sustainable Use’ [TFDV2019051609821691] at the Ministry of Environment, Korea.