Cyanophora paradoxa Genome Elucidates Origin of Photosynthesis in Algae and Plants

The primary endosymbiotic origin of the plastid in eukaryotes more than 1 billion years ago led to the evolution of algae and plants. We analyzed draft genome and transcriptome data from the basally diverging alga Cyanophora paradoxa and provide evidence for a single origin of the primary plastid in...

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Published inScience (American Association for the Advancement of Science) Vol. 335; no. 6070; pp. 843 - 847
Main Authors Price, Dana C., Chan, Cheong Xin, Yoon, Hwan Su, Yang, Eun Chan, Qiu, Huan, Weber, Andreas P. M., Schwacke, Rainer, Gross, Jeferson, Blouin, Nicolas A., Lane, Chris, Reyes-Prieto, Adrián, Durnford, Dion G., Neilson, Jonathan A. D., Lang, B. Franz, Burger, Gertraud, Steiner, Jürgen M., Löffelhardt, Wolfgang, Meuser, Jonathan E., Posewitz, Matthew C., Ball, Steven, Arias, Maria Cecilia, Henrissat, Bernard, Coutinho, Pedro M., Rensing, Stefan A., Symeonidi, Aikaterini, Doddapaneni, Harshavardhan, Green, Beverley R., Rajah, Veeran D., Boore, Jeffrey, Bhattacharya, Debashish
Format Journal Article
LanguageEnglish
Published Washington, DC American Association for the Advancement of Science 17.02.2012
The American Association for the Advancement of Science
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Summary:The primary endosymbiotic origin of the plastid in eukaryotes more than 1 billion years ago led to the evolution of algae and plants. We analyzed draft genome and transcriptome data from the basally diverging alga Cyanophora paradoxa and provide evidence for a single origin of the primary plastid in the eukaryote supergroup Plantae. C paradoxa retains ancestral features of starch biosynthesis, fermentation, and plastid protein translocation common to plants and algae but lacks typical eukaryotic light-harvesting complex proteins. Traces of an ancient link to parasites such as Chlamydiae were found in the genomes of C paradoxa and other Plantae. Apparently, Chlamydia-like bacteria donated genes that allow export of photosynthate from the plastid and its polymerization into storage polysaccharide in the cytosol.
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ISSN:0036-8075
1095-9203
DOI:10.1126/science.1213561