Reference Report

Reference
Citation	Kennison, J., Cook, K. (2008.11.20). e[1] versus e[4]. (Export to RIS)
FlyBase ID	FBrf0206271
Publication Type	Personal communication to FlyBase
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PubMed Abstract
Text of Personal Communication	From: Kevin Cook <kcook@XXXXXXXXXXXXXXX> To: FlyBase-Cambridge <flybase-cambridge@XXXXXXXXXXXXXXX> Subject: e¹ versus e⁴ Date: Thu, 20 Nov 2008 13:20:14 -0500 (18:20 GMT) Hi-- Jim Kennison brought the fact to my attention that most of the stocks in the Bloomington collection that we say are marked with e¹ are probably marked with e⁴. According to Loring Craymer in http://flybase.org/reports/FBrf0063385.html, e¹ was isolated on In(3R)C and the inversion and mutation were never successfully separated. We usually choose allele ¹ as the default when we write genotypes of alleles that have been around a long time and were traditionally denoted without a superscripted allele number. Unfortunately, this was the wrong choice with ebony. For all practical purposes, e¹ is now a synonym for e⁴. We think it would create too much confusion to change the genotypes of several hundred stocks at this point. Nevertheless, it would be good to include a statement similar to the following in the e¹, e⁴ and In(3R)C entries:"According to Craymer in FBrf0063385, e¹ was isolated on In(3R)C and was never successfully separated from it. Most ebony alleles denoted simply as "e" without a specific allele designation can be traced back to Muller's e⁴. Most ebony mutations in Stock Center stocks designated as e¹ are probably e⁴." Thanks! Kevin __________________________________________________________ Kevin Cook, Ph.D. Bloomington Drosophila Stock Center Department of Biology http://flystocks.bio.indiana.edu Jordan Hall 142 Indiana University 812-856-1213 1001 E. Third St. 812-855-2577 (fax) Bloomington, IN 47405-7005 kcook@XXXXXXXXXXXXXXX
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Language of Publication	English
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Aberrations (1)
	In(3R)C
Alleles (2)
	e¹ e⁴
Genes (1)
	e