Trichromatic colour vision in New World monkeys
Trichromatic colour vision in New World monkeys
复制标题
DOI：
10.1038/382156a0
复制
发表时间：
1996-07-11
期刊：
影响因子：
64.8
通讯作者：
Neitz, J
中科院分区：
文献类型：
--
作者：
Jacobs, GH;Neitz, M;Neitz, J
三色视觉依赖于三种视锥光色素的存在。三色视觉是所有旧大陆猴子、猿和人类的标准，但在一些新大陆猴子属中，颜色视觉是惊人的多态(1)。新旧大陆灵长类动物的色觉差异源于X染色体上色素基因的不同排列。在东半球灵长类动物中，常规三色视觉所需的三种光色素由两个或多个x染色体色素基因和一个常染色体色素基因编码。新世界猴通常只有一个x染色体色素基因；多个等位基因允许不同类型的二色视觉，并且在这个位点杂合的雌性中，三色视觉的变体形式。在这里，我们报告了多个x染色体色素基因和三色视觉是一种猕猴属，吼猴，Alouatta的标准。
TRICHROMATIC colour vision depends on the presence of three types of cone photopigment. Trichromacy is the norm for all Old World monkeys, apes and humans, but in several genera of New World monkeys, colour vision is strikingly polymorphic(1). The difference in colour vision between these New and Old World primates results from differing arrangements of the pigment genes on the X chromosome. In Old World primates the three photopigments required for routine trichromatic colour vision are encoded by two or more X-chromosome pigment genes and an autosomal pigment gene. New World monkeys typically have only one X-chromosome pigment gene; multiple alleles allow different types of dichromatic colour vision and, in females heterozygous at this locus, variant forms of trichromatic colour vision. Here we report that multiple X-chromosome pigment genes and trichromatic colour vision are the norm for one genus of platyrrhine monkey, the howler monkey, Alouatta.