Evolutionary diversity of eukaryotic small-subunit rRNA genes.
Proc Natl Acad Sci U S A
; 83(5): 1383-7, 1986 Mar.
Article
em En
| MEDLINE
| ID: mdl-2419907
ABSTRACT
The small-subunit rRNA gene sequences of the flagellated protists Euglena gracilis and Trypanosoma brucei were determined and compared to those of other eukaryotes. A phylogenetic tree was constructed in which the earliest branching among the eukaryotes is represented by E. gracilis. The E. gracilis divergence far antedates a period of massive evolutionary radiation that gave rise to the plants, animals, fungi, and certain groups of protists such as ciliates and the acanthamoebae. The genetic diversity in this collection of eukaryotes is seen to exceed that displayed within either the eubacterial or the archaebacterial lines of descent.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Trypanosoma brucei brucei
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DNA Ribossômico
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RNA Ribossômico
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Euglena
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Evolução Biológica
Limite:
Animals
Idioma:
En
Revista:
Proc Natl Acad Sci U S A
Ano de publicação:
1986
Tipo de documento:
Article