Barros R M S, Nagamachi C Y, Pieczarka J C, Rodrigues L R R, Neusser M, de Oliveira E H, Wienberg J, Muniz J A P C, Rissino J D, Muller S
Departamento de Genética, Centro de Ciências Biológicas, Universidade Federal do Pará, CCB, 3o andar, Av. Perimetral s/n, CEP 66.075-900, Bairro-Guamá, Belém, PA, Brasil.
Chromosome Res. 2003;11(4):327-34. doi: 10.1023/a:1024039907101.
This paper presents the karyotype of Callicebus donacophilus pallescens for the first time. The analysis included G-, C-, NOR-banding techniques and FISH with chromosome painting probes from Saguinus oedipus and Homo sapiens. The results were compared with the karyotypes of Callicebus moloch donacophilus and C. moloch previously published. These three karyotypes display the same diploid number (2n = 50) but diverge about the number of biarmed and acrocentric chromosomes. The acrocentrics 14 and 15 from C. m. donacophilus and C. moloch have undergone an in-tandem fusion originating a large acrocentric (pair 10) in C. d. pallescens. The major submetacentric pair (pair 1) from C. d. donacophilus and C. moloch have undergone fission originating two acrocentric pairs in C. d. pallescens (pairs 15 and 22). Herein was evidence that, in spite of the high interspecific variation among Callicebus, most of the chromosomes remained conserved.
本文首次展示了淡色唐加拉雀猴（Callicebus donacophilus pallescens）的核型。分析包括G显带、C显带、核仁组织区（NOR）显带技术以及使用来自白领伶猴（Saguinus oedipus）和智人的染色体涂染探针进行荧光原位杂交（FISH）。将结果与先前发表的摩鹿加唐加拉雀猴（Callicebus moloch donacophilus）和摩鹿加唐加拉雀猴（C. moloch）的核型进行了比较。这三种核型显示出相同的二倍体数目（2n = 50），但在双臂染色体和近端着丝粒染色体的数目上有所不同。摩鹿加唐加拉雀猴指名亚种（C. m. donacophilus）和摩鹿加唐加拉雀猴的近端着丝粒染色体14和15发生了串联融合，在淡色唐加拉雀猴指名亚种（C. d. pallescens）中形成了一条大的近端着丝粒染色体（第10对）。淡色唐加拉雀猴指名亚种和摩鹿加唐加拉雀猴的主要亚中着丝粒对（第1对）发生了分裂，在淡色唐加拉雀猴指名亚种中形成了两对近端着丝粒染色体（第15对和第22对）。本文有证据表明，尽管唐加拉雀猴属之间存在高度的种间差异，但大多数染色体仍然保持保守。
