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Mitochondrial Genome of Prasinophyte Alga Pyramimonas parkeae.
- Source :
-
The Journal of eukaryotic microbiology [J Eukaryot Microbiol] 2017 May; Vol. 64 (3), pp. 360-369. Date of Electronic Publication: 2016 Oct 24. - Publication Year :
- 2017
-
Abstract
- Prasinophytes are a paraphyletic assemblage of nine heterogeneous lineages in the Chlorophyta clade of Archaeplastida. Until now, seven complete mitochondrial genomes have been sequenced from four prasinophyte lineages. Here, we report the mitochondrial genome of Pyramimonas parkeae, the first representative of the prasinophyte clade I. The circular-mapping molecule is 43,294 bp long, AT rich (68.8%), very compact and it comprises two 6,671 bp long inverted repeat regions. The gene content is slightly smaller than the gene-richest prasinophyte mitochondrial genomes. The single identified intron is located in the cytochrome c oxidase subunit 1 gene (cox1). Interestingly, two exons of cox1 are encoded on the same strand of DNA in the reverse order and the mature mRNA is formed by trans-splicing. The phylogenetic analysis using the data set of 6,037 positions assembled from 34 mtDNA-encoded proteins of 48 green algae and plants is not in compliance with the branching order of prasinophyte clades revealed on the basis of 18S rRNA genes and cpDNA-encoded proteins. However, the phylogenetic analyses based on all three genomic elements support the sister position of prasinophyte clades Pyramimonadales and Mamiellales.<br /> (© 2016 The Author(s) Journal of Eukaryotic Microbiology © 2016 International Society of Protistologists.)
- Subjects :
- Base Sequence
Chlorophyta enzymology
DNA, Chloroplast genetics
DNA, Mitochondrial genetics
DNA, Plant
Electron Transport Complex IV genetics
Euglenida genetics
Exons genetics
Genetic Heterogeneity
Introns genetics
Molecular Sequence Annotation
Plant Proteins classification
Plant Proteins genetics
Plants genetics
RNA, Messenger genetics
RNA, Ribosomal, 18S genetics
Trans-Splicing
Chlorophyta genetics
Genome, Mitochondrial genetics
Mitochondrial Proteins classification
Mitochondrial Proteins genetics
Phylogeny
Subjects
Details
- Language :
- English
- ISSN :
- 1550-7408
- Volume :
- 64
- Issue :
- 3
- Database :
- MEDLINE
- Journal :
- The Journal of eukaryotic microbiology
- Publication Type :
- Academic Journal
- Accession number :
- 27678215
- Full Text :
- https://doi.org/10.1111/jeu.12371