From owner-drosophila@net.bio.net Tue Sep 20 23:00:00 1994 Path: biosci!CRCVMS.UNL.EDU!ACHRISTENSEN From: ACHRISTENSEN@CRCVMS.UNL.EDU ("Alan C. Christensen, Ph.D.") Newsgroups: bionet.drosophila Subject: X-gal protocol Date: 20 Sep 1994 17:33:19 -0700 Organization: BIOSCI International Newsgroups for Molecular Biology Lines: 15 Sender: daemon@net.bio.net Distribution: world Message-ID: <01HHC03ZKLKG0008PG@crcvms.unl.edu> NNTP-Posting-Host: net.bio.net Hello. We are getting frustrated with protocols for staining embryos with X-gal. We've tried the protocols in Ashburner's Manual, as well as some other published procedures, and they don't work very reliably. Often the stain is diffuse throughout the embryo rather than in a pattern, and more often, they don't stain at all, but just turn light brown. Could someone please help with a detailed protocol, as well as some hints on troubleshooting? Thanks, in advance, Alan Christensen, achristensen@unl.edu School of Biological Sciences University of Nebraska 348 Manter Hall Lincoln, NE 68588-0118 .