i wanna know if there are any kits about aDNA extration.i have some samples date from 2000-2500 years.in my research, fist difficult lays in how to extract DNA from these samples ,even though i know some common protocols and practiced them,they were not work well. i think some kits can help me maybe.
if there are some friends intrested in these area,please contact with me in e-mail:tommey@eeyes.net

Try Qiagen kits, DNeasy tissue kits seem to work well for most samples that I have done, however all my samples have been less than 10 years old. Another thing to think about is what your samples are preserved in, formaldehyde and similar chemicals can make DNA extraction very difficult or impossible.

Good luck

I don't know how many samples you have. I prefare to use my own recipe for aDNA isolation from bones and teeth instead of kits, but it really depends on how many you have. I have experience with kits from a company Mo-Bio (www.mobio.com) - forensic sample extraction. Good Luck