Abstract
Prochlorococcus marinus , the dominant photosynthetic organism in the ocean, is found in two main ecological forms: high-light-adapted genotypes in the upper part of the water column and low-light-adapted genotypes at the bottom of the illuminated layer. P. marinus SS120, the complete genome sequence reported here, is an extremely low-light-adapted form. The genome of P. marinus SS120 is composed of a single circular chromosome of 1,751,080 bp with an average G+C content of 36.4%. It contains 1,884 predicted protein-coding genes with an average size of 825 bp, a single rRNA operon, and 40 tRNA genes. Together with the 1.66-Mbp genome of P. marinus MED4, the genome of P. marinus SS120 is one of the two smallest genomes of a photosynthetic organism known to date. It lacks many genes that are involved in photosynthesis, DNA repair, solute uptake, intermediary metabolism, motility, phototaxis, and other functions that are conserved among other cyanobacteria. Systems of signal transduction and environmental stress response show a particularly drastic reduction in the number of components, even taking into account the small size of the SS120 genome. In contrast, housekeeping genes, which encode enzymes of amino acid, nucleotide, cofactor, and cell wall biosynthesis, are all present. Because of its remarkable compactness, the genome of P. marinus SS120 might approximate the minimal gene complement of a photosynthetic organism.
Bibliography
Dufresne, A., Salanoubat, M., Partensky, F., Artiguenave, F., Axmann, I. M., Barbe, V., Duprat, S., Galperin, M. Y., Koonin, E. V., Le Gall, F., Makarova, K. S., Ostrowski, M., Oztas, S., Robert, C., Rogozin, I. B., Scanlan, D. J., de Marsac, N. T., Weissenbach, J., Wincker, P., ⦠Hess, W. R. (2003). Genome sequence of the cyanobacterium Prochlorococcus marinus SS120, a nearly minimal oxyphototrophic genome. Proceedings of the National Academy of Sciences, 100(17), 10020â10025.
Authors
21
- Alexis Dufresne (first)
- Marcel Salanoubat (additional)
- Frédéric Partensky (additional)
- François Artiguenave (additional)
- Ilka M. Axmann (additional)
- Valérie Barbe (additional)
- Simone Duprat (additional)
- Michael Y. Galperin (additional)
- Eugene V. Koonin (additional)
- Florence Le Gall (additional)
- Kira S. Makarova (additional)
- Martin Ostrowski (additional)
- Sophie Oztas (additional)
- Catherine Robert (additional)
- Igor B. Rogozin (additional)
- David J. Scanlan (additional)
- Nicole Tandeau de Marsac (additional)
- Jean Weissenbach (additional)
- Patrick Wincker (additional)
- Yuri I. Wolf (additional)
- Wolfgang R. Hess (additional)
References
54
Referenced
386
10.1007/BF00245165
10.1128/MMBR.63.1.106-127.1999
10.4319/lo.1992.37.2.0425
10.1073/pnas.93.26.15244
10.4319/lo.1999.44.3.0628
- Rocap G. Larimer F. W. Lamerdin J. Malfatti S. Chain P. Ahlgren N. A. Arellano A. Coleman M. Hauser L. Hess W. R. et al. (2003) Nature 10.1038/nature01947.
10.1093/dnares/8.5.205
10.1093/dnares/3.3.109
10.1093/dnares/9.4.123
10.1016/S0014-5793(00)02273-0
10.1111/j.1574-6968.1999.tb08853.x
10.1093/nar/27.23.4636
10.1093/nar/29.12.2607
10.1093/oxfordjournals.molbev.a026133
10.1093/nar/25.5.955
10.1093/nar/gkg398
10.1093/nar/28.1.33
10.1093/nar/25.17.3389
- Koonin E. V. & Galperin M. Y. (2002) Sequence–Evolution–Function: Computational Approaches in Comparative Genomics (Kluwer Boston).
10.1101/gr.174302
10.1016/0378-1119(96)00160-6
10.1111/j.1574-6968.2002.tb11393.x
10.1016/S0022-2836(02)01242-1
10.1126/science.270.5235.397
10.1093/dnares/3.6.407
10.1093/dnares/8.6.271
10.1007/s00203-002-0476-5
10.1111/j.1574-6968.2001.tb10814.x
10.1101/gr.8.8.779
10.1021/bi00127a009
10.1007/BF00047415
10.1023/A:1013835924610
10.1073/pnas.070040897
10.1023/A:1006252013008
10.1105/tpc.13.4.965
10.1146/annurev.genet.31.1.61
10.1046/j.1365-313x.2000.00672.x
10.1073/pnas.95.21.12719
10.3354/meps116259
- Partensky F. & Garczarek L. (2003) in Photosynthesis in Algae ed. Larkum A. W. D. (Kluwer Dordrecht The Netherlands) Vol. 14 in press.
10.1071/PP01188
10.1093/jxb/erg076
10.1016/S0167-4838(97)00208-2
10.1128/JB.181.23.7363-7372.1999
10.1128/AEM.69.2.1299-1304.2003
10.1111/j.1574-6941.2002.tb00930.x
10.1128/JB.182.11.3204-3209.2000
10.1126/science.1072113
10.1128/JB.184.23.6544-6550.2002
10.1128/JB.185.2.674-678.2003
10.1093/plankt/16.5.565
10.1357/0022240933223963
10.1007/PL00006294
10.1073/pnas.131201098
Dates
Type | When |
---|---|
Created | 22 years ago (Aug. 19, 2003, 12:56 p.m.) |
Deposited | 3 years, 4 months ago (April 13, 2022, 3:58 a.m.) |
Indexed | 23 hours, 47 minutes ago (Aug. 26, 2025, 3:16 a.m.) |
Issued | 22 years ago (Aug. 13, 2003) |
Published | 22 years ago (Aug. 13, 2003) |
Published Online | 22 years ago (Aug. 13, 2003) |
Published Print | 22 years ago (Aug. 19, 2003) |
@article{Dufresne_2003, title={Genome sequence of the cyanobacterium Prochlorococcus marinus SS120, a nearly minimal oxyphototrophic genome}, volume={100}, ISSN={1091-6490}, url={http://dx.doi.org/10.1073/pnas.1733211100}, DOI={10.1073/pnas.1733211100}, number={17}, journal={Proceedings of the National Academy of Sciences}, publisher={Proceedings of the National Academy of Sciences}, author={Dufresne, Alexis and Salanoubat, Marcel and Partensky, Frédéric and Artiguenave, François and Axmann, Ilka M. and Barbe, Valérie and Duprat, Simone and Galperin, Michael Y. and Koonin, Eugene V. and Le Gall, Florence and Makarova, Kira S. and Ostrowski, Martin and Oztas, Sophie and Robert, Catherine and Rogozin, Igor B. and Scanlan, David J. and de Marsac, Nicole Tandeau and Weissenbach, Jean and Wincker, Patrick and Wolf, Yuri I. and Hess, Wolfgang R.}, year={2003}, month=aug, pages={10020–10025} }