• Register
X
Forgot Password

If you have forgotten your password you can enter your email here and get a temporary password sent to your email.

X

Leaving Community

Are you sure you want to leave this community? Leaving the community will revoke any permissions you have been granted in this community.

No
Yes

The genome of the diatom Thalassiosira pseudonana: ecology, evolution, and metabolism.

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.

Pubmed ID: 15459382

Authors

  • Armbrust EV
  • Berges JA
  • Bowler C
  • Green BR
  • Martinez D
  • Putnam NH
  • Zhou S
  • Allen AE
  • Apt KE
  • Bechner M
  • Brzezinski MA
  • Chaal BK
  • Chiovitti A
  • Davis AK
  • Demarest MS
  • Detter JC
  • Glavina T
  • Goodstein D
  • Hadi MZ
  • Hellsten U
  • Hildebrand M
  • Jenkins BD
  • Jurka J
  • Kapitonov VV
  • Kröger N
  • Lau WW
  • Lane TW
  • Larimer FW
  • Lippmeier JC
  • Lucas S
  • Medina M
  • Montsant A
  • Obornik M
  • Parker MS
  • Palenik B
  • Pazour GJ
  • Richardson PM
  • Rynearson TA
  • Saito MA
  • Schwartz DC
  • Thamatrakoln K
  • Valentin K
  • Vardi A
  • Wilkerson FP
  • Rokhsar DS

Journal

Science (New York, N.Y.)

Publication Data

October 1, 2004

Associated Grants

None

Mesh Terms

  • Adaptation, Physiological
  • Algal Proteins
  • Animals
  • Biological Evolution
  • Cell Nucleus
  • Chromosomes
  • DNA
  • Diatoms
  • Ecosystem
  • Energy Metabolism
  • Genome
  • Iron
  • Light
  • Light-Harvesting Protein Complexes
  • Mitochondria
  • Molecular Sequence Data
  • Nitrogen
  • Photosynthesis
  • Plastids
  • Restriction Mapping
  • Sequence Alignment
  • Sequence Analysis, DNA
  • Silicic Acid
  • Symbiosis
  • Urea