title: Marmoset evolution: the molecular evidence.
abstract: We report here the results of comparative immunological and electrophoretic studies of the serum proteins of the New World monkeys. Specifically, we find that the New World monkeys share a long period of common ancestry with the Catarrhini and that the divergence between these two groups occurred some 35-40 million years ago. The extant New World monkey lineages are then seen as sharing a long period of common ancestry subsequent to that divergence, with their radiation beginning in the early Miocene. We see seven distinct lineages stemming from this radiation: (1) Aotus, (2) Callicebus, (3) Cebus, (4) Saimiri, (5) Ateles-Lagothrix-Alouatta, (6) Pithecia-Cacajao and (7) Callimico-Callimico with Cebuella-Saguinus-Leontideus. Within those Ateles with Lagonthrix, and Callimico with Callithrix-Cebuella form further subgroups. The marmoset radiation appears to have begun some 7-10 million years ago.
mesh_terms: D000818:Animals; D005075:Biological Evolution; D002143:Callitrichinae / Q000145:classification / Q000235:genetics / Q000276:immunology; D000882:Haplorhini; D010802:Phylogeny; D012709:Serum Albumin / Q000235:genetics; D013020:South America; D014168:Transferrin / Q000235:genetics
chemical_list: D012709:Serum Albumin; D014168:Transferrin