title: Molecular phylogeny of Old World monkeys (Cercopithecidae) as inferred from gamma-globin DNA sequences.
abstract: DNA sequence data of the nuclear-encoded gamma1-gamma2-globin duplication region were used to examine the phylogenetic relationships of 16 cercopithecid (Old World monkey) species representing 12 extant genera. Morphology- and molecular-based hypotheses of Old World monkey branching patterns are generally congruent, except for generic relationships within the subtribe Papionina. The cercopithecids divide into colobines (leaf-eating monkeys) and cercopithecines (cheek-pouched monkeys). The colobines examined by the DNA data divide into an Asian clade (Nasalis, proboscis monkeys; Trachypithecus, langurs) and an African clade (Colobus, colobus monkeys). The cercopithecines divide into tribes Cercopithecini (Erythrocebus, patas monkey; Chlorocebus, green monkeys; Cercopithecus, guenons) and Papionini. Papionins divide into subtribes Macacina (Macaca, macaques) and Papionina (Papio, hamadryas baboons; Mandrillus, drills and mandrills; Theropithecus, gelada baboons; Lophocebus, arboreal mangabeys; Cercocebus, terrestrial mangabeys). In a morphologically based classification, Mandrillus is a subgenus of Papio, whereas Lophocebus is a subgenus of Cercocebus. In contrast, the molecular evidence treats Mandrillus as a subgenus of Cercocebus, and treats both Theropithecus and Lophocebus as subgenera of Papio. Local molecular clock divergence time estimates were used as a yardstick in a "rank equals age" system to propose a reduction in taxonomic rank for most clades within Cercopithecidae.
authors.affiliation: Department of Anatomy and Cell Biology, Wayne State University School of Medicine, Detroit, Michigan 48201, USA.
authors.forename: S L
authors.initials: SL
authors.lastname: Page
authors.forename: Ch
authors.initials: Ch
authors.lastname: Chiu
authors.forename: M
authors.initials: M
authors.lastname: Goodman
mesh_terms: D000818:Animals; D002520:Cercopithecidae / Q000145:classification / Q000235:genetics*; D004247:DNA / Q000737:chemistry / Q000235:genetics*; D019143:Evolution, Molecular; D005914:Globins / Q000235:genetics*; D010802:Phylogeny; D017422:Sequence Analysis, DNA; D013223:Statistics as Topic; D013997:Time Factors
chemical_list: D005914:Globins; D004247:DNA