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Price D.C., Chan C.X., Yoon HS, Yang E.C., Qiu H., Weber A.P., Schwacke R., Gross J., Blouin N.A., Lane C., Reyes-Prieto A., Durnford D.G., Neilson J.A., Lang F.B., Gertraud Burger G., Steiner J.M., Löffelhardt W., Meuser J.E., Posewitz M.C., Ball S., Arias M.C., Henrissat B., Coutinho P.M., Rensing S.A., Symeonidi A., Doddapaneni H., Green B.R., Rajah V.D., Boore J., and Bhattacharya D. 2012. Cyanophora paradoxa genome elucidates origin of photosynthesis in algae and plants. Science 17 February 2012: Vol. 335 no. 6070 pp. 843-847
doi|Nature news|ScientificAmerican.com|biotechnologie.de [German]|Cyanophora BLAST and data download|
See commentary by
Spiegel FW. 2012. Contemplating the first Plantae. Science 17 February 2012: Vol. 335 no. 6070 pp. 809-810 |doi
Gross J, Bhattacharya D. Mitochondrial and plastid evolution in eukaryotes: an outsiders' perspective. Nature Reviews Genetics 10(7): 495−505; June 9, 2009. [PDF]
Gross J, Bhattacharya D. Revaluating the evolution of the Toc and Tic protein translocons. Trends in Plant Science 14(1): 13−20; January 2009. [PDF]
Reyes−Prieto A, Bhattacharya D. Phylogeny of Nuclear−Encoded Plastid−Targeted Proteins Supports an Early Divergence of Glaucophytes within Plantae. Molecular Biology and Evolution 24(11): 2358−2361; November 2007. [PDF]
Reyes−Prieto A, Bhattacharya D. Phylogeny of Calvin cycle enzymes supports Plantae monophyly. Molecular Phylogenetics and Evolution 45(1): 384−391; October 2007. [PDF]
Tyra HM, Linka M, Weber AP, Bhattacharya D. Host origin of plastid solute transporters in the first photosynthetic eukaryotes. Genome Biology 8(10): R212; October 5, 2007. [PDF]
Hackett JD, Yoon HS, Li S, Reyes−Prieto A, Rümmele SE, Bhattacharya D. Phylogenomic analysis supports the monophyly of cryptophytes and haptophytes and the association of rhizaria with chromalveolates. Molecular Biology and Evolution 24(8): 1702−1713; August 2007. [PDF]
Reyes−Prieto A, Weber AP, Bhattacharya D. The origin and establishment of the plastid in algae and plants. Annual Review of Genetics 41: 147−168; June 28, 2007. [PDF]
Reyes−Prieto A, Hackett JD, Soares MB, Bonaldo MF, Bhattacharya D. Cyanobacterial contribution to algal nuclear genomes is primarily limited to plastid functions. Current Biology 16(23): 2320−2325; December 5, 2006. [PDF]
Archibald JM. Algal genomics: exploring the imprint of endosymbiosis. Current Biology 16(24): R1033−5; December 19, 2006. [PDF]
Weber AP, Linka M, Bhattacharya D. Single, Ancient Origin of a Plastid Metabolite Translocator Family in Plantae from an Endomembrane−Derived Ancestor. Eukaryotic Cell 5(3): 609−612; March 2006. [PDF]
More related publications from PubMed and Google Scholar.
How was photosynthesis established in eukaryotes? To gain insights into this fundamental step in the evolution of our planet, we are determining to high coverage the 140 million base pair nuclear genome sequence of the unicellular alga Cyanophora paradoxa. Cyanophora is a member of the remaining group of photosynthetic eukaryotes (Glaucophyta) that still lacks a complete genome sequence. The single cyanobacterial primary endosymbiosis that gave rise to all plastids (e.g.,chloroplasts) occurred in the common ancestor of Cyanophora, other algae and plants. This was a pivotal and ancient (~1.5 billion years ago) event in the Earth’s history that laid the foundation for modern terrestrial ecosystems. A critical step in plastid establishment was the transfer of endosymbiont genes to the "host" nucleus. It is unclear whether this massive transfer was limited to genes strictly involved in plastid metabolism or whether the host profited from the captured genome to explore other novel functions via recruitment of genes from the cyanobacterium. The Cyanophora genome sequence will enable us to rigorously test this idea in a relatively "simple" algal model. Beyond its contribution to understanding endosymbiosis, the Cyanophora genome sequence will allow countless other insights, which include identifying a set of core genes shared by algae and plants that can be studied in detail to understand the origin of plant−specific characters. In addition, the Cyanophora genome will be invaluable for guiding the annotation of the genomes of plants and other protists.