Glow in the dark fish in the U.S.A. yay!

[Opcn]

Almost all zebra danios are amssively inbred they are not wild caught they breed ten untill they have ten thousand. Pet mice are the same way but there are mouse populations on EVERY ontinent even antartia (for some reason my key in between x and v on a qwerty has stoped working ... shiza!) flourascent Zebras will not form stable population more redily than regular zebras but mice will always be able to from su(h a population.

Addressing the (on(ern that all these fish are bred from just 2 or 3 maiting pairs the fact (yay I have c's again!) of the matter is that they will breed with regular zebras and When the gene is expressed heterozygusly (I know Spelling! Spelling!) It will still show up (I so wanted to say alleal but I know that that would be the wrongg word) so from one fish they could breed a bunch of them with the gene and they dont need to sell true breeding ones to th public they just need to glo for one generation. And even if they did muddy up the population with non true breeders they could fix that problem in as few as two spawnings with wild types because they are not like live berors who carry sperm with them.

Opcn

 

[nightlife20]

hmm sorry if it has already ben put across... but dont they cross breed bettas to see what colours they can come out with???

i personaly woudlnt buy them... but as someone has already said each to there own...


Dawn

 

[Exiled]

....yes just like the glowing mice) and a type of coral for the pink *zebra danios*

There's Glowing Mice available on the market?!!!! WOOHOOO! My snake is gonna LOVE this! SO will I, watching her stalk the furry light source! :kira:

 

[Opcn]

They will be expensive if you find them and they don't glow they are just flourescent.

Opcn

 

[pmoyniha]

opcn you make a lot of good points. This semester when we cloned "glowinthedark" genes from Vibrio fischeri into E. Coli we had a success rate of about 1/200 000 cells. Now we were shotgun cloning, so the success rate is lower than the process I imagine the used with the glo fish, but still, the success rate is really low. Hence, a limited gene pool, hence trouble for them down the road.

The process itself should be harmless, unless you count the number of fish killed in the process as experimental error, but the question, like others have raised is why? Well, if it is a useful thing for water quaility testing I say ok. It's like the canaries in mining shafts. but to then mass produce them says something entirely different about our veiw of animals and our waste of resources.

Just my opinion.
Pat

 

[Opcn]

You end up with a much tinyer gene pool from line breeding and as I said b4 the trait is most likly expressed when it is present heterozygously. Also if I'm compleatly wrong and they bred all of them from 2 fish they would probably need to breed ten generations at least for scientific purposes and after ten generations of inbreeding any more would have no ill effects.

Opcn hey and 1/200000 for E. Coli is quite good seeing as how that is what 10 or 20 petri dishes max.

Opcn

 

[pmoyniha]

opcn: good points. Yeah, we got lucky. Most of the people in the lab didnt get any glowing E. Coli. But my point was that when you step that up from bacteria to "real" animals those success rates are going to drop. At any rate I saw them today in the LFS and I think they are a bit goofy and too expensive for most of the people around here. If they have any staying power on the market it will be small (or so I think...).

Out of curiosity why is it that you think the trait is expressed in the Hets?

Pat

 

[petshop johnny]

ive seen glassfish injected with flourecent dye.no hurt in keeping them except they look gaudy and who knows if they live long in that condition.these fish are imported from asian countries where animals cruelty laws do not apply.i find the plain transparent glassfish more attractive and they are available

 

[Opcn]

If you have one copy of a gene and the activation sequence is right the gene will still produce a protein (although it may be half of that produced by two copies) and the presence of GFP will still show up although it may only show up at half the strength.

As far as glass fish go dyed fish generaly don't live long and are very unhealthy I would not buy a dyed fish but thats just me.

Opcn

 

[Landlocked]

Dyed fish, inverts tend not to live as long as others of their species who haven't been dyed.