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The rise of the rhizosolenid diatoms
Sinninghe Damsté, J.S.; Muyzer, G.; Abbas, B.; Rampen, S.W.; Massé, G.; Allard, W.G.; Belt, S.T.; Robert, J.-M.; Rowland, S.J.; Moldowan, J.M.; Barbanti, S.M.; Fago, F.J.; Denisevich, P.; Dahl, J.; Trindade, L.A.F.; Schouten, S. (2004). The rise of the rhizosolenid diatoms. Science (Wash.) 304(5670): 584-587. https://dx.doi.org/10.1126/science.1096806
In: Science (Washington). American Association for the Advancement of Science: New York, N.Y. ISSN 0036-8075; e-ISSN 1095-9203, more
Peer reviewed article  

Available in  Authors 

Keywords
    Acids > Organic compounds > Organic acids > Nucleic acids > DNA
    Algae > Diatoms
    Ribosomes

Authors  Top 
  • Sinninghe Damsté, J.S.
  • Muyzer, G., more
  • Abbas, B.
  • Rampen, S.W.
  • Massé, G.
  • Allard, W.G.
  • Belt, S.T.
  • Robert, J.-M.
  • Rowland, S.J.
  • Moldowan, J.M.
  • Barbanti, S.M.
  • Fago, F.J.
  • Denisevich, P.
  • Dahl, J.
  • Trindade, L.A.F.
  • Schouten, S.

Abstract
    The 18S ribosomal DNA molecular phylogeny and lipid composition of over 120 marine diatoms showed that the capability to biosynthesize highly branched isoprenoid (HBI) alkenes is restricted to two specific phylogenetic clusters, which independently evolved in centric and pennate diatoms. The molecular record of C25 HBI chemical fossils in a large suite of well-dated marine sediments and petroleum revealed that the older cluster, composed of rhizosolenid diatoms, evolved 91.5 ± 1.5 million years ago (Upper Turonian), enabling an accurate dating of the pace of diatom evolution that is unprecedented. The rapid rise of the rhizosolenid diatoms probably resulted from a major reorganization of the nutrient budget in the mid-Cretaceous oceans, triggered by plate tectonics.

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