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Krüppel homolog (Kr h) is a dosage-dependent modifier of gene expression in Drosophila

Published online by Cambridge University Press:  01 April 2000

ELIZAVETA V. BENEVOLENSKAYA ,
MAXIM V. FROLOV  and
JAMES A. BIRCHLER
ELIZAVETA V. BENEVOLENSKAYA
Affiliation:
Division of Biological Sciences, University of Missouri-Columbia, 117 Tucker Hall, Columbia, MO 652 11, USA
MAXIM V. FROLOV
Affiliation:
Division of Biological Sciences, University of Missouri-Columbia, 117 Tucker Hall, Columbia, MO 652 11, USA
JAMES A. BIRCHLER
Affiliation:
Division of Biological Sciences, University of Missouri-Columbia, 117 Tucker Hall, Columbia, MO 652 11, USA
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Abstract

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A lethal mutation in the Krüppel homolog (Kr h) was isolated in screens of P-element insertion mutations for modifiers of white gene expression. The mutation occurs in the 5′ untranslated region of the Kr h gene and causes a lightening of the eye colour for several alleles of white due to a decrease in white steady-state mRNA levels at pupal stages. Two related genes, scarlet and brown, were significantly affected as well in early pupae. Genetic analysis of different white alleles suggests that enhancer sequences are necessary for interaction with KR H. Thus, the Kr h gene is a member of the dosage-dependent hierarchy effective upon white.

Type
Research Article
Information
Genetics Research , Volume 75 , Issue 2 , April 2000 , pp. 137 - 142
Copyright
© 2000 Cambridge University Press