Publication Date:
2021-02-04
Description:
Kelp species (Laminariales, Phaeophyceae) are globally widespread along temperate to Polar rocky coastal lines.
Here we analyse the mitochondrial and chloroplast genomes of Laminaria rodriguezii, in comparison to the
organellar genomes of other kelp species. We also provide the complete mitochondrial genome sequence of
another endemic kelp species from a Polar habitat, the Arctic Laminaria solidungula. We compare phylogenetic
trees derived from twenty complete mitochondrial and seven complete chloroplast kelp genomes. Interestingly,
we found a stretch of more than 700 bp in the mitochondrial genome of L.rodriguezii, which is not present in any
other yet sequenced member of the Phaeophyceae. This stretch matches a protein coding region in the mitochondrial
genome from Desmarestia viridis, another brown seaweed. Their high similarity suggests that these
sequences originated through independent introduction into the two species. Their origin could have been by
infection by yet unknown similar mitoviruses, currently only known from fungi and plants.
Repository Name:
EPIC Alfred Wegener Institut
Type:
Article
,
peerRev
,
info:eu-repo/semantics/article
Format:
application/pdf
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