A continuous sequence of 20,374 bp has been produced corresponding to an equivalent region of the mitochondrial
genome of the fern Asplenium nidus. The information content of this sequence includes: several segments from
chloroplast origin, three tRNA genes of probable native type, a couple of inverted repeats, three protein genes and a segment
of a fourth.
Among the tRNA genes trnN, usually from chloroplast origin in the Spermatophyte mitochondrial genomes, shows the
characteristics of a native gene.