夜猴属的Q带和G带核型及自然杂交种。

Genus Aotus Q- and G-band karyotypes and and natural hybrids.

作者信息

Yunis E, De Caballero O M, Ramirez C

出版信息

Folia Primatol (Basel). 1977;27(3):165-77. doi: 10.1159/000155785.

Abstract

Q- and G-banding studies of Aotus trivigatus trivirgatus and Aotus trivirgatus griseimembra are presented. After the analysis of 8 specimens, 2 A.t. trivirgatus and 6 A.t. griseimembra and the review of the literature on the field we state the existence of two different karyotypes, 2n = 54 and 2n = 50, for A.t. trivirgatus and three different karyotypes, 2n = 54, 2n = 52 and 2n = 50, for A.t. griseimembra. It was found that Robertsonian translocations were the mechanism involved in the numerical reduction of the chromosomes. The data presented include the statement of two natural hybrids and the cross-breedings which originated them.

摘要

本文展示了对三带夜猴指名亚种（Aotus trivigatus trivirgatus）和灰肢三带夜猴（Aotus trivigatus griseimembra）的Q带和G带研究。在分析了8个样本（2只三带夜猴指名亚种和6只灰肢三带夜猴）并查阅了该领域的文献后，我们指出三带夜猴指名亚种存在两种不同的核型，即2n = 54和2n = 50；灰肢三带夜猴存在三种不同的核型，即2n = 54、2n = 52和2n = 50。研究发现，罗伯逊易位是染色体数目减少的机制。所呈现的数据包括两个自然杂交种及其杂交起源的说明。