Ribosomal RNA Gene Sequences and Hominoid Phylogeny

Overview

Journal Mol Biol Evol

Publisher Oxford University Press

Specialty Biology

Date 1990 May 1

PMID 2359361

Citations 17

Authors

I L Gonzalez

J E Sylvester

T F Smith

D Stambolian

R D Schmickel

Affiliations

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Abstract

Sequences totaling 3,500 bases from the 28S rRNA gene and from one of the ribosomal internal transcribed spacers (ITS1) have been determined for human, chimpanzee (Pan troglodytes), gorilla (Gorilla gorilla), and orangutan (Pongo pygmaeus). Analyses of the rRNA alignments show (1) a clustering of substitutions in the "variable regions" of the 28S gene, (2) a 1.5-3-fold increase in divergence in the transcribed spacer over that in the exon, and (3) that human and chimpanzee are the most closely related pair, in agreement with the results of Miyamoto et al., Sibley and Ahlquist, and Caccone and Powell.

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