2013
DOI: 10.1093/gbe/evt106
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Organellar Inheritance in the Green Lineage: Insights from Ostreococcus tauri

Abstract: Along the green lineage (Chlorophyta and Streptophyta), mitochondria and chloroplast are mainly uniparentally transmitted and their evolution is thus clonal. The mode of organellar inheritance in their ancestor is less certain. The inability to make clear phylogenetic inference is partly due to a lack of information for deep branching organisms in this lineage. Here, we investigate organellar evolution in the early branching green alga Ostreococcus tauri using population genomics data from the complete mitocho… Show more

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Cited by 20 publications
(24 citation statements)
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“…Population studies of O. tauri found relatively high levels of π s in its ptDNA (~4 × 10 −3 ) (Blanc‐Mathieu et al . ), much higher than those observed for V. carteri . Likewise, comparative analyses of closely related prasinophytes, such as O. tauri vs. Ostreococcus sp.…”
Section: Support For the Mutational Hazard Hypothesismentioning
confidence: 53%
“…Population studies of O. tauri found relatively high levels of π s in its ptDNA (~4 × 10 −3 ) (Blanc‐Mathieu et al . ), much higher than those observed for V. carteri . Likewise, comparative analyses of closely related prasinophytes, such as O. tauri vs. Ostreococcus sp.…”
Section: Support For the Mutational Hazard Hypothesismentioning
confidence: 53%
“…Interestingly, these authors find sexual encounters to be infrequent and estimate the relative rate of meioses/mitoses among their strains to be 10 −6 . Population-wide analyses of organellar genomes further revealed recombination of plastid genomes approximately one-third as frequent as recombination of nuclear genomes, suggesting a relatively frequent biparental inheritance of the plastid (but not mitochondrion) in O. tauri (39). Also the double nuclei containing diplomonads such as Giardia intestinalis (Fornicata) have mostly been assumed to be asexual.…”
Section: Sex In Eukaryotic Microorganisms: More Voyeurs Neededmentioning
confidence: 99%
“…Evidence for chloroplast DNA recombination has been reported for the prasinophyte O. tauri (Blanc‐Mathieu et al. ). These observations indicate that earliest diverging green algae may display bi‐parental chloroplast genome inheritance.…”
Section: Discussionmentioning
confidence: 96%
“…In the prasinophyte species O. tauri a group II intron similarly evolved rapidly, resulting in sequence loss in some strains (Blanc‐Mathieu et al. ).…”
Section: Discussionmentioning
confidence: 99%
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