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Normal and Defective Colour Vision$
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John D. Mollon, Joel Pokorny, and Ken Knoblauch

Print publication date: 2003

Print ISBN-13: 9780198525301

Published to Oxford Scholarship Online: April 2010

DOI: 10.1093/acprof:oso/9780198525301.001.0001

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PRINTED FROM OXFORD SCHOLARSHIP ONLINE (oxford.universitypressscholarship.com). (c) Copyright Oxford University Press, 2021. All Rights Reserved. An individual user may print out a PDF of a single chapter of a monograph in OSO for personal use. date: 19 October 2021

Genotypic Variation in Multi-Gene Dichromats

Genotypic Variation in Multi-Gene Dichromats

Chapter:
(p.299) Chapter 31 Genotypic Variation in Multi-Gene Dichromats
Source:
Normal and Defective Colour Vision
Author(s):

S. S. Deeb

W. Jagla

H. Jägle

T. Hayashi

L. T. Sharpe

Publisher:
Oxford University Press
DOI:10.1093/acprof:oso/9780198525301.003.0031

The gene arrays of multi-gene dichromats are quite heterogeneous with respect to both the type of hybrid gene and the total number of genes. Hybrid genes play a major role in causing dichromacy. This chapter shows that dichromacy results if the first two pigments encoded by the first two genes have identical or near identical spectral sensitivities. The difference in sequence of exon 2 does not confer any colour discrimination capacity.

Keywords:   gene arrays, colour vision defect, dichromats, colour discrimination, dichromacy

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