| Molecular evolution of the psi eta-globin gene locus: gibbon phylogeny and the hominoid slowdown | WJ Bailey, DH Fitch, DA Tagle, J Czelusniak, JL Slightom | 155 |
| Evolutionary origin and diversification of the mammalian CD1 antigen genes | AL Hughes | 185 |
| Study of an isolated population at the nucleotide level: rp49 region of a canarian population of Drosophila subobscura | J Rozas, M Aguade | 202 |
| Isolation and molecular evolutionary analysis of a cytochrome c gene from Oryza sativa (rice) | EC Kemmerer, M Lei, R Wu | 212 |
| Strong reproductive isolation between closely related tropical sea urchins (genus Echinometra) | SR Palumbi, EC Metz | 227 |
| Assessing the reliability of 5S RNA sequence data for phylogenetic analysis in green plants | KP Steele, KE Holsinger, RK Jansen, DW Taylor | 240 |
| 5S ribosomal RNA sequences inappropriate for phylogenetic reconstruction | KM Halanych | 249 |
| What is a genus in the Trypanosomatidae family? Phylogenetic analysis of two small rRNA sequences | E Gomez, AM Valdes, D Pinero, R Hernandez | 254 |
| Erratum | | 260 |