| Sequences of primate insulin genes support the hypothesis of a slower rate of molecular evolution in humans and apes than in monkeys | S Seino, GI Bell, WH Li | 193 |
| Mitochondrial DNA-like sequence in the nuclear genome of an akodontine rodent | MF Smith, WK Thomas, JL Patton | 204 |
| Coevolution of the vertebrate integrin alpha- and beta-chain genes | AL Hughes | 216 |
| Phylogenetic position of phylum Nemertini, inferred from 18S rRNA sequences: molecular data as a test of morphological character homology | JM Turbeville, KG Field, RA Raff | 235 |
| Molecular relationships between alcohol dehydrogenase null-activity alleles from natural populations of Drosophila melanogaster | JB Gibson, AV Wilks, A Agrotis | 250 |
| The Drosophila subobscura Adh genomic region contains valuable evolutionary markers | G Marfany, R Gonzalez-Duarte | 261 |
| Two ascomycete classes based on fruiting-body characters and ribosomal DNA sequence | ML Berbee, JW Taylor | 278 |
| Molecular evolution of the fungi: relationship of the Basidiomycetes, Ascomycetes, and Chytridiomycetes | BH Bowman, JW Taylor, AG Brownlee, J Lee, SD Lu | 285 |
| The two similarly expressed genes encoding U3 snRNA in Schizosaccharomyces pombe lack introns | DA Selinger, GL Porter, PJ Brennwald, JA Wise | 297 |
| Character analysis and the integration of molecular and morphological data in an understanding of sand dollar phylogeny | CR Marshall | 309 |
| Rapid surveying of DNA sequence variation in natural populations | EP Lessa | 323 |
| Sequence instability and functional inactivation of murine Y chromosomes can occur on a specific genetic background | FS Nallaseth | 331 |
| The number of replications needed for accurate estimation of the bootstrap P value in phylogenetic studies | SB Hedges | 366 |
| Substitution bias, weighted parsimony, and amniote phylogeny as inferred from 18S rRNA sequences | CR Marshall | 370 |
| 18S rRna and amniote phylogeny: reply to Marshall | SB Hedges and LR Maxson | 374 |
| Commentary on letters of Marshall and of Hedges and Maxson | WM Fitch | 378 |