Genome divergence in two Prochlorococcus ecotypes reflects oceanic niche differentiation
- G. Rocap, Frank W. Larimer, S. Chisholm
- BiologyNature
- 28 August 2003
The genomes of two Prochlorococcus strains that span the largest evolutionary distance within the Pro chlorococcus lineage are compared and reveal dynamic genomes that are constantly changing in response to myriad selection pressures.
Resolution of Prochlorococcus and Synechococcus Ecotypes by Using 16S-23S Ribosomal DNA Internal Transcribed Spacer Sequences
- G. Rocap, D. Distel, J. Waterbury, S. Chisholm
- BiologyApplied and Environmental Microbiology
- 1 March 2002
The results provide further evidence that natural populations of Prochlorococcus and Synechococcus consist of multiple coexisting ecotypes, genetically closely related but physiologically distinct, which may vary in relative abundance with changing environmental conditions.
Physiology and molecular phylogeny of coexisting Prochlorococcus ecotypes
- Lisa R. Moore, G. Rocap, S. Chisholm
- Biology, Environmental ScienceNature
- 4 June 1998
Direct evidence supporting the coexistence and distribution of multiple ecotypes permits the survival of the population as a whole over a broader range of environmental conditions than would be possible for a homogeneous population is reported.
Utilization of different nitrogen sources by the marine cyanobacteria Prochlorococcus and Synechococcus
- Lisa R. Moore, A. Post, G. Rocap, S. Chisholm
- Environmental Science
- 1 July 2002
Study of the capa2 3 bilities of different Prochlorococcus and Synechococcus strains to grow on a variety of N sources found that all the isolates grew well on NH and all were capable of urea utilization, occasionally at a lower growth rate.
Cyanobacterial photosynthesis in the oceans: the origins and significance of divergent light-harvesting strategies.
- Claire Ting, G. Rocap, J. King, S. Chisholm
- Environmental Science, BiologyTrends in Microbiology
- 1 March 2002
Sulfolipids dramatically decrease phosphorus demand by picocyanobacteria in oligotrophic marine environments.
- B. V. Van Mooy, G. Rocap, H. Fredricks, Colleen T. Evans, A. Devol
- Environmental ScienceProceedings of the National Academy of Sciences…
- 6 June 2006
Evolution of this "sulfur-for-phosphorus" strategy set the stage for the success of picocyanobacteria in oligotrophic environments and may have been a major event in Earth's early history when the relative availability of sulfate and PO4(3-) were significantly different from today's ocean.
Production of cobalt binding ligands in a Synechococcus feature at the Costa Rica upwelling dome
- M. Saito, G. Rocap, J. Moffett
- Environmental Science
- 1 January 2005
Cobalt speciation analysis of incubation experiments revealed large quantities of strong cobalt-ligand complexes in the cobalt addition treatments, demonstrating that the Synechococcus-dominated community is a source of strong Cobalt ligands.
Co-occurring Synechococcus ecotypes occupy four major oceanic regimes defined by temperature, macronutrients and iron
- J. A. Sohm, N. Ahlgren, G. Rocap
- Environmental ScienceThe ISME Journal
- 24 July 2015
It is speculated that parallel evolution of ecotypes may be a common feature of diverse marine microbial communities that contributes to functional redundancy and the potential for resiliency.
Plastid proteome prediction for diatoms and other algae with secondary plastids of the red lineage
- Ansgar Gruber, G. Rocap, P. Kroth, E. Armbrust, T. Mock
- BiologyThe Plant Journal
- 6 January 2015
The plastids of ecologically and economically important algae from phyla such as stramenopiles, dinoflagellates and cryptophytes were acquired via a secondary endosymbiosis and are surrounded by three or four membranes and therefore represent the putative plastid proteomes of these algae.
Culture Isolation and Culture-Independent Clone Libraries Reveal New Marine Synechococcus Ecotypes with Distinctive Light and N Physiologies
- N. Ahlgren, G. Rocap
- BiologyApplied and Environmental Microbiology
- 25 August 2006
Light and nitrogen utilization are important factors in ecotype differentiation in the marine Synechococcus lineage, as in its sister genus Prochlorococcus.
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