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Re: NFC: seeking pumpkinseeds
- To: nfc at actwin_com
- Subject: Re: NFC: seeking pumpkinseeds
- From: "Thom DeWitt" <dewitt at ceeb_uky.edu>
- Date: Mon, 14 Dec 1998 16:00:17 +0000
- Comments: Authenticated sender is <dewitt at darwin_ceeb.uky.edu>
You have it right. The fish-induced shells not changed genes.
It is merely the _expression_ of given genes that changes based on
the presence or absence of fish smell. Thus there is both a genetic and
environmental component to shell shape and strength.
Neat stuff if I do say so myself : )
The story is dragged out in excruciating detail on my webpage, if you
wanted to learn more. Questions are always welcome.
> Date: Mon, 14 Dec 1998 15:40:31 -0500 (EST)
> From: Josh Wiegert <wiegerj at paul_paulsmiths.edu>
> To: nfc at actwin_com
> Subject: Re: NFC: seeking pumpkinseeds
> Reply-to: nfc at actwin_com
> Although pretty much everything is frozen up here, making any help
> rather... difficult at best, your work did strike a bit of curiosity.
> You stated that the snails could change their genes in response to the
> presense of fish.... are you sure this is a genetic change, which would be
> passed down to young and so forth, and not just a reaction to the fish
> scent, the same way your hair grows faster after a haircut, plants grow
> differently if you clip the terminal bud, etc. ?
> J. L. Wiegert
Dr. Thomas J. DeWitt
Research Assistant Professor
Center for Ecology, Evolution, & Behavior
TH Morgan School of Biological Sciences
University of Kentucky
Lexington, KY 40506-0225
tel 606/323-4992; fax 257-1717; email dewitt at ceeb_uky.edu