Here's a cool article on how scientist have completed the first high quality reference for the chile genome. Pretty interestong. They indicate tomatos have the same gene that causes the burn but it is nonfunctioning. One day tomatos could contain heat like a chile. Here's the link: http://www.huffingtonpost.com/2014/01/27/hot-pepper-genome_n_4661103.html?utm_hp_ref=science. Chiles may also get hotter as a result of this research. I think they're hot enough now!
Ken
Ken