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The 18S ribosomal RNA sequence of the sea anemone Ammonia sulcata and its evolutionary position among other eukaryotes
Hendriks, L.; Van de Peer, Y.; Van Herck, M.; Neefs, J.-M.; De Wachter, R. (1990). The 18S ribosomal RNA sequence of the sea anemone Ammonia sulcata and its evolutionary position among other eukaryotes. FEBS Lett. 269(2): 445-449. dx.doi.org/10.1016/0014-5793(90)81212-7
In: FEBS Letters. ELSEVIER SCIENCE BV: Amsterdam. ISSN 0014-5793, more
Peer reviewed article  

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Keyword
    Marine
Author keywords
    Small ribosomal subunit RNA sequence;Metazoan evolution;Ammonia sulcata;srRNA, small ribosomal subunit RNA;rDNA, gene coding for the srRNA

Authors  Top 
  • Hendriks, L.
  • Van de Peer, Y., more
  • Van Herck, M.
  • Neefs, J.-M.
  • De Wachter, R.

Abstract
    Evolutionary trees based on partial small ribosomal subunit RNA sequences of 22 metazoa species have been published [(1988) Science 239, 748-753]. In these trees, cnidarians (Radiata) seemed to have evolved independently from the Bilateria, which is in contradiction with the general evolutionary view. In order to further investigate this problem, the complete srRNA sequence of the sea anemone Ammonia sulcata was determined and evolutionary trees were constructed using a matrix optimization method. In the tree thus obtained the sea anemone and Bilateria together form a monophyletic cluster, with the sea anemone forming the first line of descent of the metazoan group.

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