Don,
That’s a wonderful idea! Just think how much easier our lives would be!!
Of course now, you could start your own lab. (Yes, you can get just about anything on eBay these day!)
All you need (in no particular order) is:
Micro-pestle (to crush the young tissue)
Access to liquid nitrogen (to assist in crushing tissue)
A cordless drill (to attach to micro-pestle)
Thousands and thousands of micro-centrifuge tubes (I prefer to buy the different colored ones to help keep track of things)
Water bath
Timer
The right protocol for extracting the DNA…alas, one ‘size’ does not fit all in the plant kingdom
PCR machine (Actually, Dr. Byrne said he used to do it all by hand when he was in college. I can’t imagine standing around for that many hours going back and forth between an ice bath and a hot bath treatment!)
Electrophoresis equipment
Gelling agent for the electrophoresis process (MetaPhor is really the best as it has ‘high resolution’ capabilities.)
Micro-pipettes (and thousands of tips for them)
Plus all of the other ‘consumables’ you’ll need (example: chemicals, gloves, etc…)
Vent hood (because you don’t want to die inhaling the fumes of some of those chemicals, or at least you don’t want the house to smell like a skunk for the rest of it’s existence!)
It also really, REALLY helps if you know the ploidy level of the plants your working with. It gives you a good indication if the banding patterns your seeing are realistic or not.
You are also assuming that the banding patterns are far enough apart to decipher them on a gel. If not, then you have to sink considerable funds into purchasing a capillary electrophoresis machine. Or, if you’re super lucky, and you live near (or work for) a university that has access to one of these. Then, you get to wait until they tell you they have space for you to use their machine AND charge you for each sample they run.
Hmm…did I mention that it takes more than one day just to extract the DNA and there is no guarantee that the quality of DNA you extract will be useful for the PCR process?
I’m only half joking about this. If you are very creative and have a lot of time, you can figure out alternatives for much of the equipment that you need. (And yes, I did buy a micro-centrifuge on eBay! --And, I’ve a friend who bought her own personal micro-pipette through eBay.)
I am, however, NOT joking about the vent hood. Stinky mercaptoethanol is the least of your concerns when it comes to extracting DNA from roses.
Maybe, by the time I retire from the university (hopefully in 15+ years) they will actually have the technology to hook that clothes pin up to your cell phone and let you know if your trait of interest is present or not! I think that would be awesome!! But then, I have to ask myself, even if the trait isn’t present do I want to just throw it out or look and see if it has some other ‘redeeming’ quality I’d be interested in.
Ugh…I’ve rambled enough and now I’m going back to bed!