ISSN:
1432-1432
Keywords:
Key words: Planktic foraminifera — Eukaryote evolution — SSU rDNA phylogeny
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Abstract. Phylogenetic analysis of five partial planktic foraminiferal small subunit (SSU) ribosomal (r) DNA sequences with representatives of a diverse range of eukaryote, archaebacterial, and eubacterial taxa has revealed that the evolutionary origin of the foraminiferal lineage precedes the rapid eukaryote diversification represented by the ``crown'' of the eukaryotic tree and probably represents one of the earliest splits among extant free-living aerobic eukaryotes. The foraminiferal rDNA sequences could be clearly separated from known symbionts, commensals, and food organisms. All five species formed a single monophyletic group distinguished from the ``crown'' group by unique foraminiferal specific insertions as well as considerable nucleotide distance in aligned regions.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF02202115
