Viegas Péquignot E, Koiffmann C P, Dutrillaux B
Cytogenet Cell Genet. 1985;39(2):99-104. doi: 10.1159/000132115.
Based on a comparison of the karyotypes of two Plathyrrhini species, Cacajao melanocephalus (Pitheciinae) and Brachyteles arachnoides (Atelinae), with those of two previously studied species, Lagothrix lagothrica (Atelinae) and C calvus rubicundus (Pitheciinae), it appears that the two Cacajao species have undergone the same number of chromosome rearrangements since they diverged from their common ancestor and that the karyotype of Brachyteles is ancestral to that of Lagothrix. The chromosomal phylogeny of these four species is proposed. A Y-autosome translocation is present in the karyotypes of the two Cacajao species.
基于对两种阔鼻猴亚目物种——黑头僧面猴（僧面猴亚科）和绒毛蛛猴（蜘蛛猴亚科）的核型，与之前研究的两种物种——绒毛猴（蜘蛛猴亚科）和红脸白秃猴（僧面猴亚科）的核型进行比较，似乎这两种僧面猴物种自它们从共同祖先分化以来经历了相同数量的染色体重排，并且绒毛蛛猴的核型是绒毛猴核型的祖先型。提出了这四个物种的染色体系统发育关系。两种僧面猴物种的核型中存在Y染色体与常染色体的易位。
