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Intraspecific chromosome variation in Cebus apella (cebidae, platyrrhini): The chromosomes of the yellow breasted capuchin Cebus apella xanthosternos wied, 1820

1986; Wiley; Volume: 10; Issue: 3 Linguagem: Inglês

10.1002/ajp.1350100304

1098-2345

Héctor N. Seuénez, J.L. Armada, L. Freitas, Roberto Rocha e Silva, Alcides Pissinatti, Adelmar F. Coimbra‐Filho,

Genomics and Chromatin Dynamics

Abstract Chromosome studies in six wild‐caught specimens of Cebus apella xanthosternos showed a distinctive chromosome pair number 11 that made it possible to distinguish this subspecies from other Cebus apella . The characteristic chromosome pair had intercalar heterochromatin unlike the “standard” chromosome type of Cebus apella and other species of the same genus, in which this chromosome pair shows a large, terminal, heterochromatic block. A comparison at the chromosomal level between different Cebus apella populations suggests that chromosome 11 in Cebus apella xanthosternos is a derived chromosome that has probably become fixed in this subspecies, either by selection or by drift in a small isolated population.