From owner-drosophila@net.bio.net Wed May 31 23:00:00 1995 Path: biosci!bloom-beacon.mit.edu!gatech!rutgers!uwm.edu!newsspool.doit.wisc.edu!news.doit.wisc.edu!NewsWatcher!user From: wrengels@facstaff.wisc.edu (Bill Engels) Newsgroups: bionet.drosophila Subject: Re: yellow body mutant males are not in disadvantage after all! Date: Wed, 31 May 1995 09:02:08 -0500 Organization: University of Wisconsin Lines: 31 Distribution: world Message-ID: References: <3q26db$9m0@ixnews1.ix.netcom.com> NNTP-Posting-Host: wrengels.genetics.wisc.edu In article <3q26db$9m0@ixnews1.ix.netcom.com>, platense@ix.netcom.com () wrote: > I have recently completed the first part of a research on population > genetics in which I observed the changes in allelic frequencies > between wild and yellow mutant. Despite the mating disadvantage that > the yellow mutant males are known to have during the courtship, the > final allelic frequencies I ended up with after 5 generations in two > populations started with different initial proportions of yellow to > wild, favored the yellow mutants 60:40. I observed that the yellow > males hatched much sooner (at least 12 hours) than the wild males, and > they are also consistently smaller in size than their wild > counterparts (faster DNA synthesis => smaller size of eventual > adult??). These are advantages that I observed but could not > corroborate with current literature. Does anybody know something about > this??? Were the females in your populations by any chance C(1)DX, y f? If so, I believe the mating disadvantage of y males would not apply, since y females do not show the preference. Bill \\ /X\ /X\ /X\ /X\ /X\ /X\ /X\ /X\ /X\ /X\ /X\ /X\ /X\ /X\ /X\ /X\ /X\ \X/ \X/ \X/ \X/ \X/ \X/ \X/ \X/ \X/ \X/ \X/ \X/ \X/ \X/ \X/ \X/ \X/ \ William R. Engels : WREngels@facstaff.wisc.edu Genetics Department, 445 Henry Mall : office: (608) 263-2213 University of Wisconsin : lab: (608) 262-5578 Madison, WI 53706 : FAX: (608) 262-2976 ---------------------------------------------------------------------- .