ArticleScientific reports2017
Multiple origins of endosymbionts in Chlorellaceae with no reductive effects on the plastid or mitochondrial genomes.
Article in Scientific reports, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
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Who cites it
15 citing papers in PubMed, 20 citations in OpenAlex.
- De Novo Genome Sequence Assembly of the Algal Endosymbiont Micractinium conductrix Derived From Its Host Paramecium bursaria 186b.Genome biology and evolution · 2026Article
- Lineage-Specific Retention of the Plastid tilS-trnI(CAU) Module and Its Variable Relationship With Codon Usage Evolution in Green Algae.Genome biology and evolution · 2026Article
- Plastomes provide new insights into phylogeny and evolution in Chlorellaceae (Chlorophyta, Trebouxiophyceae).BMC plant biology · 2025Article
- The complex DNA molecular combination with a linear and circular structure inFrontiers in plant science · 2025Article
- Recurrent evolutionary switches of mitochondrial cytochrome c maturation systems in Archaeplastida.Nature communications · 2024Article
- Genetic Diversity of Symbiotic Green Algae ofPlants (Basel, Switzerland) · 2021Article
- Mitochondrial genome of the Antarctic microalgaMitochondrial DNA. Part B, Resources · 2021Article
- Diversity of tRNA Clusters in the Chloroviruses.Viruses · 2020Article
- What Is in Umbilicaria pustulata? A Metagenomic Approach to Reconstruct the Holo-Genome of a Lichen.Genome biology and evolution · 2020Article
- Complete chloroplast genome ofMitochondrial DNA. Part B, Resources · 2020Article
- Complete mitochondrial genome ofMitochondrial DNA. Part B, Resources · 2020Article
- Complete chloroplast ofMitochondrial DNA. Part B, Resources · 2019Article
- Complete mitochondrial genome ofMitochondrial DNA. Part B, Resources · 2019Article
- Dynamic evolution of mitochondrial genomes in Trebouxiophyceae, including the first completely assembled mtDNA from a lichen-symbiont microalga (Trebouxia sp. TR9).Scientific reports · 2019Article
- Article
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Authors and funding
4 authors at 1 institution in 1 country.
Funding
Abstract
Ancient endosymbiotic relationships have led to extreme genomic reduction in many bacterial and eukaryotic algal endosymbionts. Endosymbionts in more recent and/or facultative relationships can also experience genomic reduction to a lesser extent, but little is known about the effects of the endosymbiotic transition on the organellar genomes of eukaryotes. To understand how the endosymbiotic lifestyle has affected the organellar genomes of photosynthetic green algae, we generated the complete plastid genome (plastome) and mitochondrial genome (mitogenome) sequences from three green algal endosymbionts (Chlorella heliozoae, Chlorella variabilis and Micractinium conductrix). The mitogenomes and plastomes of the three newly sequenced endosymbionts have a standard set of genes compared with free-living trebouxiophytes, providing no evidence for functional genomic reduction. Instead, their organellar genomes are generally larger and more intron rich. Intron content is highly variable among the members of Chlorella, suggesting very high rates of gain and/or loss of introns during evolution. Phylogenetic analysis of plastid and mitochondrial genes demonstrated that the three endosymbionts do not form a monophyletic group, indicating that the endosymbiotic lifestyle has evolved multiple times in Chlorellaceae. In addition, M. conductrix is deeply nested within the Chlorella clade, suggesting that taxonomic revision is needed for one or both genera.
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