Rapid evolutionary divergence of Photosystem I core subunits PsaA and PsaB in the marine prokaryote Prochlorococcus
The nucleotide sequences of the genes coding for the subunits of the Photosystem I (PS I) core, PsaA and PsaB were determined for the marine prokaryotic oxyphototrophs Prochlorococcus sp. MED4 (CCMP1378), P. marinus SS120 (CCMP1375) and Synechococcus sp. WH7803. Divergence of these sequences from th...
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| Veröffentlicht in: | Photosynthesis research 2000-01, Vol.65 (2), p.131-139 |
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| creator | van der Staay, G W Moon-van der Staay, S Y Garczarek, L Partensky, F |
| description | The nucleotide sequences of the genes coding for the subunits of the Photosystem I (PS I) core, PsaA and PsaB were determined for the marine prokaryotic oxyphototrophs Prochlorococcus sp. MED4 (CCMP1378), P. marinus SS120 (CCMP1375) and Synechococcus sp. WH7803. Divergence of these sequences from those of both freshwater cyanobacteria and higher plants was remarkably high, given the conserved nature of PsaA and PsaB proteins. In particular, the PsaA of marine prokaryotes showed several specific insertions and deletions with regard to known PsaA sequences. Even in between the two Prochlorococcus strains, which correspond to two genetically different ecotypes with shifted growth irradiance optima, the sequence identity was only 80.2% for PsaA and 88.9% for PsaB. Possible causes and implications of the fast evolution rates of these two PS I core subunits are discussed. |
| doi_str_mv | 10.1023/A:1006445810996 |
| format | Article |
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MED4 (CCMP1378), P. marinus SS120 (CCMP1375) and Synechococcus sp. WH7803. Divergence of these sequences from those of both freshwater cyanobacteria and higher plants was remarkably high, given the conserved nature of PsaA and PsaB proteins. In particular, the PsaA of marine prokaryotes showed several specific insertions and deletions with regard to known PsaA sequences. Even in between the two Prochlorococcus strains, which correspond to two genetically different ecotypes with shifted growth irradiance optima, the sequence identity was only 80.2% for PsaA and 88.9% for PsaB. 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Possible causes and implications of the fast evolution rates of these two PS I core subunits are discussed.</description><subject>Bacteria</subject><subject>Cyanobacteria</subject><subject>Genetics</subject><subject>Prochlorococcus</subject><subject>Prochlorococcus marinus</subject><subject>Synechococcus</subject><issn>0166-8595</issn><issn>1573-5079</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2000</creationdate><recordtype>article</recordtype><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><recordid>eNp9kb1v2zAQxYkgQe26nbsFRIa2i5Kjjh9iN9fIFxAgRpFdoKlTLUcWHVEK4P--DOIsHbzc3fDDu3fvGPsm4FJAjlfzXwJAS6kKAdbqEzYVymCmwNhTNgWhdVYoqybsc4wbACi0wE9sInSeF7KAKYt_3K6pOL2Gdhya0Ll-z6vmlfq_1HnioebLdRhC3MeBtvye-9ATj-Nq7Joh8mV0c-666m34zZuOD2viW9c3HfFdH56TWhiIL_vg121INXg_xi_srHZtpK-HPmNPN9dPi7vs4fH2fjF_yDxKNWQ5obfW1EQe_MoCrkCjQ3S-qmqHea6tldZoUddOgZCglayKyuRojNIKZ-zHu2xy8jJSHMptEz21resojLEs0CYFYXUifx4lRcpQJitSJPT7cdQUKEFiAi_-Azdh7Lt0b2kUvq0VeYLOD9C42lJV7vompbcvP_6D_wBBcZGO</recordid><startdate>20000101</startdate><enddate>20000101</enddate><creator>van der Staay, G W</creator><creator>Moon-van der Staay, S Y</creator><creator>Garczarek, L</creator><creator>Partensky, F</creator><general>Springer Nature B.V</general><scope>NPM</scope><scope>3V.</scope><scope>7QP</scope><scope>7X7</scope><scope>7XB</scope><scope>88A</scope><scope>88E</scope><scope>88I</scope><scope>8AO</scope><scope>8FE</scope><scope>8FH</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BBNVY</scope><scope>BENPR</scope><scope>BHPHI</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>FYUFA</scope><scope>GHDGH</scope><scope>GNUQQ</scope><scope>HCIFZ</scope><scope>K9.</scope><scope>LK8</scope><scope>M0S</scope><scope>M1P</scope><scope>M2P</scope><scope>M7N</scope><scope>M7P</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>Q9U</scope><scope>F1W</scope><scope>H95</scope><scope>L.G</scope><scope>7X8</scope></search><sort><creationdate>20000101</creationdate><title>Rapid evolutionary divergence of Photosystem I core subunits PsaA and PsaB in the marine prokaryote Prochlorococcus</title><author>van der Staay, G W ; 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| subjects | Bacteria Cyanobacteria Genetics Prochlorococcus Prochlorococcus marinus Synechococcus |
| title | Rapid evolutionary divergence of Photosystem I core subunits PsaA and PsaB in the marine prokaryote Prochlorococcus |
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