Visual pigments of African cichlid fishes:: evidence for ultraviolet vision from microspectrophotometry and DNA sequences

被引：87

作者：

Carleton, KL

Hárosi, FI

Kocher, TD

机构：

[1] Univ New Hampshire, Dept Zool, Durham, NH 03824 USA

[2] Marine Biol Lab, Lab Sensory Physiol, Woods Hole, MA 02543 USA

[3] Univ New Hampshire, Genet Program, Durham, NH 03824 USA

来源：

VISION RESEARCH | 2000年 / 40卷 / 08期

基金：

美国国家科学基金会;

关键词：

opsin; visual pigment; ultraviolet vision; cichlidae; microspectrophotometry;

D O I：

10.1016/S0042-6989(99)00238-2

中图分类号：

Q189 [神经科学];

学科分类号：

071006 ;

摘要：

We have found evidence for ultraviolet visual capabilities in a Lake Malawi cichlid fish, Metriaclima zebra. Microspectrophotometry of single cones revealed a visual pigment with peak sensitivity at 368 +/- 3 nm. M. zebra also expresses a putative ultraviolet opsin gene whose sequence is closely related to the SWS-1 opsin for other fishes. Several other African cichlids have a functional copy of this UV gene in their genomic DNA, but do not appear to express this gene as adults. These results suggest that ultraviolet vision is important for some cichlid fishes. UV wavelengths should therefore be included in future studies of cichlid vision, behavior and color patterns. (C) 2000 Elsevier Science Ltd. All rights reserved.

引用

页码：879 / 890

页数：12

共 80 条

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