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Chromosomal evolution in Callithrix emiliae
R M de Souza Barros1, C Y Nagamachi, J C Pieczarka
1Departamento de Genética, Centro de Giências Biológicas, Universidade Federal do Pará, Campus Universitario do Guamá, Brazil.
Chromosoma
|October 1, 1990
Abstract:
We studied the karyotype of specimens of Callithrix emiliae (Callithricidae, Primates) from Rondonia, Brazil. Comparison with the karyotype of Callithrix jacchus showed that, even though these two species show many karyotypic similarities, they differ by a Robertsonian translocation, a paracentric inversion and large-scale addition of heterochromatin. The C. emiliae species appears to be in an active phase of chromosome evolution by the addition of constitutive heterochromatin.