A recent post on a great site, Panda's Thumb, summarizes a recent article on de novoorigination of a gene. What does this mean? de novo is latin for "from new", and its usage is wide, and can mean different things. It can mean "newly arisen function," and might also be referred to as ab initio, or "from the beginning." Anyway, the paper basically shows how brewer's yeast made a brand new gene from a set of nucleotides.