Satellite DNA sequences in the neotropical marmoset Callimico goeldii (Primates, Platyrrhini)

Chromosoma
T FanningL Forman

Abstract

Two families of tandemly repeated satellite DNAs were isolated from the neotropical primate Callimico goeldii (Goeldi's marmoset). One satellite, CgoA, is over 70% A + T and has a monomer length of 338 bp. The other satellite, CgoB, is 50% A + T and has a monomer length of 916 bp. Both CgoA and CgoB hybridize strongly with Callimico DNA, but not with the DNA of other new and old world primates. Based upon a neutral substitution rate of 1.5 X 10(-9)/site per year for primates, sequence data from 15 CgoA monomers indicate that the tandem array is at least 30 million years old. Since no other neotropical primate has amplified CgoA sequences, the data suggest that the ancestor of Callimico separated from the other neotropical primates at least 30 million years ago. This value is about fourfold larger than the value of 7-9 million years derived from immunological data by Sarich and Cronin (1980). Possible reasons for this discrepancy are discussed.

References

Dec 1, 1977·Proceedings of the National Academy of Sciences of the United States of America·F SangerA R Coulson
Jan 1, 1988·Cytogenetics and Cell Genetics·T FanningS J O'Brien
Oct 20, 1987·Journal of Molecular Biology·T Fanning
Oct 6, 1985·Nature·G R Daniels, P L Deininger
Mar 7, 1985·Nature·A J JeffreysS L Thein
Jan 1, 1982·International Review of Cytology·M F Singer

Citations

Jun 1, 1995·Chromosome Research : an International Journal on the Molecular, Supramolecular and Evolutionary Aspects of Chromosome Biology·G AlvesT Fanning
Nov 6, 2002·Genome Génome / Conseil National De Recherches Canada·A Martínez-LageJ Méndez
Apr 20, 2005·Genome Génome / Conseil National De Recherches Canada·A Martínez-LageJ Méndez
Sep 1, 2017·DNA Research : an International Journal for Rapid Publication of Reports on Genes and Genomes·Naiara Pereira AraújoMarta Svartman
Apr 29, 1998·Genome Génome / Conseil National De Recherches Canada·B K PadhiR K Mandal
Jan 1, 1994·American Journal of Primatology·S CrovellaY Rumpler

Related Concepts

Metazoa
DNA Sequence
Callitrichinae
Satellite I DNA
Phylogeny

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