Genetica

, Volume 114, Issue 3, pp 253–267

Description of the Cytochrome c Oxidase Subunit II Gene in Some Genera of New World Monkeys (Primates, Platyrrhini)

Authors

  • Marina S. Ascunce
    • GIBE (Grupo de Investigación en Biología Evolutiva), Departamento de Ciencias Biológicas, Facultad de Ciencias Exactas y Naturales (FCEN)Universidad de Buenos Aires (UBA), Ciudad Universitaria
  • Esteban Hasson
    • GIBE (Grupo de Investigación en Biología Evolutiva), Departamento de Ciencias Biológicas, Facultad de Ciencias Exactas y Naturales (FCEN)Universidad de Buenos Aires (UBA), Ciudad Universitaria
  • Marta D. Mudry
    • GIBE (Grupo de Investigación en Biología Evolutiva), Departamento de Ciencias Biológicas, Facultad de Ciencias Exactas y Naturales (FCEN)Universidad de Buenos Aires (UBA), Ciudad Universitaria
Article

DOI: 10.1023/A:1016230421820

Cite this article as:
Ascunce, M.S., Hasson, E. & Mudry, M.D. Genetica (2002) 114: 253. doi:10.1023/A:1016230421820

Abstract

Nucleotide sequence variation at the mitochondrial cytochrome c oxidase subunit II gene (COII) was analyzed in 27 New World monkey specimens, nine newly reported herein. The study involved comparisons among platyrrhines and also between platyrrhines and catarrhines. The analysis of the frequencies of transitions and transversions at each codon position showed transitional saturation at third codon position. Neighbor-Joining trees obtained from genetic distances estimated by means of Kimura's (1980) two-parameter model showed poor resolution of phylogenetic relationships among platyrrhine genera. Rates of nucleotide substitutions were largely homogeneous except in the genus Saimiri that showed low numbers of unique substitutions suggesting the maintenance of ancestral or plesiomorphic states of platyrrhine mt DNA nucleotide characters probably due to its large population sizes as compared to other platyrrhines.

catarrhinesCOII genegenetic distancesmt DNAplatyrrhinessaturationsubstitutional rate

Copyright information

© Kluwer Academic Publishers 2002