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Evolutionary connections of biological kingdoms based on protein and nucleic acid sequence evidenceProkaryotic and eukaryotic evolutionary trees are developed from protein and nucleic-acid sequences by the methods of numerical taxonomy. Trees are presented for bacterial ferredoxins, 5S ribosomal RNA, c-type cytochromes , cytochromes c2 and c', and 5.8S ribosomal RNA; the implications for early evolution are discussed; and a composite tree showing the branching of the anaerobes, aerobes, archaebacteria, and eukaryotes is shown. Single lines are found for all oxygen-evolving photosynthetic forms and for the salt-loving and high-temperature forms of archaebacteria. It is argued that the eukaryote mitochondria, chloroplasts, and cytoplasmic host material are descended from free-living prokaryotes that formed symbiotic associations, with more than one symbiotic event involved in the evolution of each organelle.
Document ID
19840058038
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Dayhoff, M. O.
Date Acquired
August 12, 2013
Publication Date
January 1, 1983
Publication Information
Publication: Precambrian Research
Volume: 20
ISSN: 0301-9268
Subject Category
Life Sciences (General)
Accession Number
84A40825
Funding Number(s)
CONTRACT_GRANT: NIH-GM-08710
CONTRACT_GRANT: NASW-3317
Distribution Limits
Public
Copyright
Other

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