Login

Join for Free!
118235 members


Eliminating Predation via Selective Breeding

Discussion of everything related to the Theory of Evolution.

Moderator: BioTeam

Eliminating Predation via Selective Breeding

Postby Liberato » Sat May 28, 2011 8:55 pm

Greetings. I'm not sure this is the right section to post this, but if not correct, I would ask that the mods relocate.

A well-known breeder claims that he has, "bred all predatory fry eating, out of his female guppies, through a few generations of selective breeding."

I'm no scientist, but from what I remember from my introduction to evolutionary biology, what has taken hundreds of thousands of years, at a minimum, to be genetically coded as a survival mechanism (big fish eat little fish), could hardly be wiped clean in a year of selective breeding at most.

Is this claim as erroneous as I interpret it to be or do I need to audit a few courses in my old age? lol.

I appreciate the fact that this does not rise to the level of most questions, here, but in our little world of livebearing tropical fish enthusiasts, a claim like this can set a breeding program back by years.

Any comments will be much appreciated.

Cheers. - Liberato
Liberato
Garter
Garter
 
Posts: 2
Joined: Sat May 28, 2011 8:46 pm

Re: Eliminating Predation via Selective Breeding

Postby skeptic » Sun May 29, 2011 4:13 am

It may be possible. I am not a fish breeder, but behavioural changes have been made in a few generations in other species. The example that comes to mind is the breeding of tameness into the silver fox.
http://en.wikipedia.org/wiki/Domesticated_silver_fox
skeptic
Coral
Coral
 
Posts: 119
Joined: Tue Apr 14, 2009 2:44 am
Location: New Zealand

Postby JackBean » Sun May 29, 2011 7:58 am

the time doesn't matter. If you were breeding elephants, even 20 years wouldn't be enough, but with mice 1 year could do it ;) The important thing is number of generations ;) Thus if he had some fishes, which breed in 2 months, he could have about 5 generations in 1 year and that could be enough for some change.
However, question is, whether his trait can be selected like that.
http://www.biolib.cz/en/main/

Cis or trans? That's what matters.
User avatar
JackBean
Inland Taipan
Inland Taipan
 
Posts: 5678
Joined: Mon Sep 14, 2009 7:12 pm


Postby mith » Sun May 29, 2011 3:12 pm

The proof is in the pudding
Living one day at a time;
Enjoying one moment at a time;
Accepting hardships as the pathway to peace;
~Niebuhr
User avatar
mith
Inland Taipan
Inland Taipan
 
Posts: 5345
Joined: Thu Jan 20, 2005 8:14 pm
Location: Nashville, TN

Postby Liberato » Sun May 29, 2011 11:07 pm

Saying that you have accomplished something is quite meaningless. I thought that "science" dealt with "proving" things to be factual - or, not.

I was in my kitchen, today, making pudding. Guess, what? When I was finished I had a pot o' gold. Really. - Liberato.
Liberato
Garter
Garter
 
Posts: 2
Joined: Sat May 28, 2011 8:46 pm

Postby mith » Tue May 31, 2011 1:23 am

All I'm saying is, if he can perform such a feat, let us see his goods. That's the best "proof".
Living one day at a time;
Enjoying one moment at a time;
Accepting hardships as the pathway to peace;
~Niebuhr
User avatar
mith
Inland Taipan
Inland Taipan
 
Posts: 5345
Joined: Thu Jan 20, 2005 8:14 pm
Location: Nashville, TN


Return to Evolution

Who is online

Users browsing this forum: No registered users and 5 guests