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

Abstract

<i>Riccia fluitans</i> L. is the most common species in <i>Riccia</i> genus. To investigate intraspecific variations on mitochondrial genomes of <i>R. fluitans</i>, we completed mitochondrial genome of <i>R. fluitans</i>. 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 <i>Marchantia polymorpha</i> subsp. <i>ruderalis</i>. One non-synonymous SNP is found in <i>ccmFN.</i> Phylogenetic trees show that <i>R. fluitans</i> is clustered with <i>Dumortiera hirsuta</i>, requiring additional mitogenome to clarify the phylogenetic relationship.