Primates

, Volume 33, Issue 2, pp 227–238

Protein variation, taxonomy and differentiation in five species of marmosets (genusCallithrixErxleben, 1777)

  • C. M. M. Meireles
  • M. I. C. Sampaio
  • H. Schneider
  • M. P. C. Schneider
Article

Abstract

The electrophoretic patterns of 15 protein systems codified for 20 genetic loci were investigated using horizontal electrophoresis. A total of 150 blood samples, from five species of the genusCallithrix were analyzed. Polymorphic variation was observed in 10 out 20 loci analyzed. The genotypic distributions are in Hardy-Weinberg equilibrium. The average heterozygosity (H) varied from 1% to 5%, similar to those observed for other Neotropical primates. The genetic distance coefficients revealed a phylogenetic separation of these species into two groups: (1) “argentata” (C. humeralifer andC. emiliae); (2) “jacchus” (C. jacchus, C. penicillata, andC. geoffroyi). This arrangement is according to the taxonomic arrangement proposed byHershkovitz (1977),de Vivo (1988), andMittermeier et al. (1988). The results in each group are compatible with the subspecies values recorded for the Platyrrhini. These values showed that:C. humeralifer andC. emiliae are subspecies ofC. argentata;C. jacchus, C. penicillata, andC. geoffroyi are subspecies ofC. jacchus. These results also suggest thatC. j. geoffroyi is the “jacchus” group taxon, most similar genetically to the “argentata” group.

Key Words

Callithrix Heterozygosity Biochemical markers Taxonomy Polymorphism Evolution 

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Copyright information

© Japan Monkey Centre 1992

Authors and Affiliations

  • C. M. M. Meireles
    • 1
  • M. I. C. Sampaio
    • 1
  • H. Schneider
    • 1
  • M. P. C. Schneider
    • 1
  1. 1.Departamento de Genética, Centro de Ciências BiológicasCampus Universitário do Guamá, Universidade Federal do Pará, CEP 66.075Belém, ParáBrasil

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