I have tomato samples to use in a Chip-seq procedure. I can't process them immediately after harvesting and I would like to know if someone has experience with this kind of problem?
Can you do the first step (crosslinking and sonication) immediately? If you can do this step then you can freeze your samples at -80°C during months. I'm not sure if you can use later your frozen tomatos... I hope it helps.
In my experience it's better to keep the frozen pellet (mammalian tissue). Sonicated chromatin perform worse compared to freshly prepared one. Just make sure you freeze after a wash in PBS with protease inhibitors.