Journal
SCIENCE
Volume 333, Issue 6041, Pages 451-452Publisher
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.1200072
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Funding
- NSF [OCE 0602423, OCE 0825020]
- Andrew W. Mellon Foundation
- Division Of Ocean Sciences
- Directorate For Geosciences [0825020] Funding Source: National Science Foundation
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A 7000-year record of Coccolithovirus and its host, the calcifying haptophyte Emiliania huxleyi, was reconstructed on the basis of genetic signatures preserved in sediments underlying the Black Sea. The data show that the same virus and host populations can persist for centuries. Major changes in virus and host populations occurred during early sapropel deposition, similar to 5600 years ago, and throughout the formation of the coccolith-bearing sediments of Unit I during the past 2500 years, when the Black Sea experienced dramatic changes in hydrologic and nutrient regimes. Unit I saw a reoccurrence of the same host genotype thousands of years later in the presence of a different subset of viruses. Historical plankton virus populations can thus be included in paleoecological and paleoenvironmental studies.
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