On the prevalence of certain codons (“RNY”) in genes for proteins Thomas H. Jukes Articles Pages: 377 - 381
Evolution of fragmented mitochondrial ribosomal RNA genes inChlamydomonas Eileen M. Denovan-WrightDavid SankoffRobert W. Lee Articles Pages: 382 - 391
Mutational mechanisms, phylogeny, and evolution of a repetitive region within a clock gene ofDrosophila melanogaster E. RosatoA. A. PeixotoR. Costa Articles Pages: 392 - 408
Untranslated sequence upstream of MarA in the multiple antibiotic resistance locus ofEscherichia coli is related to the effector-binding domain of the XylS transcriptional activator Herbert HächlerSeth P. CohenStuart B. Levy Articles Pages: 409 - 413
The tryptophan biosynthetic pathway of aphid endosymbionts (Buchnera): Genetics and evolution of plasmid-associated anthranilate synthase (trpEG) within the aphididae Dadbeh RouhbakhshChi-Yung LaiDavid J. Voegtlin Articles Pages: 414 - 421
Intron position as an evolutionary marker of thioredoxins and thioredoxin domains Mariam SahrawyValérie HechtYves Meyer Articles Pages: 422 - 431
Molecular evolution of nitrate reductase genes Jizhong ZhouAndris Kleinhofs Articles Pages: 432 - 442
Geographical variation in insertion site number of retrotransposon 412 inDrosophila simulans C. VieiraC. Biémont Articles Pages: 443 - 451
Evolution in a chronic RNA virus infection: selection on HTLV-I tax protein differs between healthy carriers and patients with tropical spastic paraparesis Stefan NiewieskCharles R. M. Bangham Articles Pages: 452 - 458
Model of amino acid substitution in proteins encoded by mitochondrial DNA Jun AdachiMasami Hasegawa Articles Pages: 459 - 468
Anomalous phylogenies based on bacterial catalase gene sequences J. E. MayfieldM. R. Duvall Letter To The Editor Pages: 469 - 471
Unbiased estimation of symmetrical directional mutation pressure from protein-coding DNA Lars S. JermiinPeter G. FosterRoss H. Crozier Letter To The Editor Pages: 476 - 480