ArticleMolecular genetics and genomics : MGG2006
Distinctive architecture of the chloroplast genome in the chlorophycean green alga Stigeoclonium helveticum.
Article in Molecular genetics and genomics : MGG, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.
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28 citing papers in PubMed, 63 citations in OpenAlex.
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- Taxonomic scheme of the order Chaetophorales (Chlorophyceae, Chlorophyta) based on chloroplast genomes.BMC genomics · 2020Article
- Amazing symmetrical clustering in chloroplast genomes.BMC bioinformatics · 2020Article
- Complete mitogenomes of the chlorophycean green algaeMitochondrial DNA. Part B, Resources · 2020Article
- The first plastid genome of a filamentous taxon 'Bangia' sp. OUCPT-01 in the Bangiales.Scientific reports · 2018Article
- Large Diversity of Nonstandard Genes and Dynamic Evolution of Chloroplast Genomes in Siphonous Green Algae (Bryopsidales, Chlorophyta).Genome biology and evolution · 2018Article
- Divergent copies of the large inverted repeat in the chloroplast genomes of ulvophycean green algae.Scientific reports · 2017Article
- The linear plastid chromosomes of maize: terminal sequences, structures, and implications for DNA replication.Current genetics · 2016Article
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- Comparative Chloroplast Genome Analyses of Streptophyte Green Algae Uncover Major Structural Alterations in the Klebsormidiophyceae, Coleochaetophyceae and Zygnematophyceae.Frontiers in plant science · 2016Article
- Genomic perspectives on the birth and spread of plastids.Proceedings of the National Academy of Sciences of the United States of America · 2015Article
- Dynamic Evolution of the Chloroplast Genome in the Green Algal Classes Pedinophyceae and Trebouxiophyceae.Genome biology and evolution · 2015Article
- The chloroplast genomes of Bryopsis plumosa and Tydemania expeditiones (Bryopsidales, Chlorophyta): compact genomes and genes of bacterial origin.BMC genomics · 2015Article
- Article
- Gene arrangement convergence, diverse intron content, and genetic code modifications in mitochondrial genomes of sphaeropleales (chlorophyta).Genome biology and evolution · 2014Article
- Analyses of charophyte chloroplast genomes help characterize the ancestral chloroplast genome of land plants.Genome biology and evolution · 2014Article
- Article
- The Bryopsis hypnoides plastid genome: multimeric forms and complete nucleotide sequence.PloS one · 2011Article
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Authors and funding
6 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The chloroplast genome has experienced many architectural changes during the evolution of chlorophyte green algae, with the class Chlorophyceae displaying the lowest degree of ancestral traits. We have previously shown that the completely sequenced chloroplast DNAs (cpDNAs) of Chamydomonas reinhardtii (Chlamydomonadales) and Scenedesmus obliquus (Sphaeropleales) are highly scrambled in gene order relative to one another. Here, we report the complete cpDNA sequence of Stigeoclonium helveticum (Chaetophorales), a member of a third chlorophycean lineage. This genome, which encodes 97 genes and contains 21 introns (including four putatively trans-spliced group II introns inserted at novel sites), is remarkably rich in derived features and extremely rearranged relative to its chlorophycean counterparts. At 223,902 bp, Stigeoclonium cpDNA is the largest chloroplast genome sequenced thus far, and in contrast to those of Chlamydomonas and Scenedesmus, features no large inverted repeat. Interestingly, the pattern of gene distribution between the DNA strands and the bias in base composition along each strand suggest that the Stigeoclonium genome replicates bidirectionally from a single origin. Unlike most known trans-spliced group II introns, those of Stigeoclonium exhibit breaks in domains I and II. By placing our comparative genome analyses in a phylogenetic framework, we inferred an evolutionary scenario of the mutational events that led to changes in genome architecture in the Chlorophyceae.
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