Gust J, a salt-insensitive mutant of Drosophila melanogaster

Jayaram, V. C. ; Siddiqi, O. (1997) Gust J, a salt-insensitive mutant of Drosophila melanogaster Journal of Genetics, 76 (2). pp. 133-145. ISSN 0022-1333

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A set of 340 P insert lines on the X chromosome and the autosomes were screened for altered responses of the labellar chemoreceptors to salts and sucrose. A mutant linegustJ was isolated in which the electrophysiological response of the salt-sensitive neuron to Na+ in the sensilla of the proboscis is reduced. The responses to KC1 and sucrose are unaffected. In feeding tests, gustJ flies have Na+-specific defects. Heterozygotes of gustJ with two other salt mutants gustE and BE1323 are normal. Multiple alleles of gustJ have been obtained by excision of the original P element. All mutants have defects in Na+ sensing specifically, thus defining a new gene that affects Na+ response of the fly.

Item Type:Article
Source:Copyright of this article belongs to Indian Academy of Sciences.
Keywords:Gustatory; Sensory Physiology; Chemosensory
ID Code:52756
Deposited On:04 Aug 2011 08:41
Last Modified:18 May 2016 06:10

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