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- Title
The genome of the diatom Thalassiosira pseudonana: ecology, evolution, and metabolism.
- Authors
Armbrust, E Virginia; Berges, John A; Bowler, Chris; Green, Beverley R; Martinez, Diego; Putnam, Nicholas H; Zhou, Shiguo; Allen, Andrew E; Apt, Kirk E; Bechner, Michael; Brzezinski, Mark A; Chaal, Balbir K; Chiovitti, Anthony; Davis, Aubrey K; Demarest, Mark S; Detter, J Chris; Glavina, Tijana; Goodstein, David; Hadi, Masood Z; Hellsten, Uffe; Hildebrand, Mark; Jenkins, Bethany D; Jurka, Jerzy; Kapitonov, Vladimir V; Kröger, Nils; Lau, Winnie W Y; Lane, Todd W; Larimer, Frank W; Lippmeier, J Casey; Lucas, Susan; Medina, Mónica; Montsant, Anton; Obornik, Miroslav; Parker, Micaela Schnitzler; Palenik, Brian; Pazour, Gregory J; Richardson, Paul M; Rynearson, Tatiana A; Saito, Mak A; Schwartz, David C; Thamatrakoln, Kimberlee; Valentin, Klaus; Vardi, Assaf; Wilkerson, Frances P; Rokhsar, Daniel S
- Abstract
Diatoms are unicellular algae with plastids acquired by secondary endosymbiosis. They are responsible for approximately 20% of global carbon fixation. We report the 34 million-base pair draft nuclear genome of the marine diatom Thalassiosira pseudonana and its 129 thousand-base pair plastid and 44 thousand-base pair mitochondrial genomes. Sequence and optical restriction mapping revealed 24 diploid nuclear chromosomes. We identified novel genes for silicic acid transport and formation of silica-based cell walls, high-affinity iron uptake, biosynthetic enzymes for several types of polyunsaturated fatty acids, use of a range of nitrogenous compounds, and a complete urea cycle, all attributes that allow diatoms to prosper in aquatic environments.
- Publication
Science (New York, N.Y.), 2004, Vol 306, Issue 5693, p79
- ISSN
1095-9203
- Publication type
Journal Article
- DOI
10.1126/science.1101156