Genomes of the Week?
Friday, August 27th, 2010
Minutes after the Tracker wrote (above) about the Gene of the Week phenomenon, he noted reports in today’s news of two newly sequenced genomes. It’s all good news for sure, but as we should remember from the results of getting the human genome ten years ago, practical benefits take a while longer, sometimes a great while longer.
The new genomes that have been sequenced are those of two widespread species–wheat and ants.
Despite history, most stories on the wheat genome confidently told of expected improvements in wheat that would reduce world hunger. On a trivial note, many reporters couldn’t resist referring in one way or another to the cracked wheat genome–five times bigger than the human genome. The AP‘s Raphael G. Satter quoted one researcher saying the practical benefits of having the wheat genome could come in less than five years. Wish I could share that optimism.
Other wheat servings: Katia Moskvitch of BBC; The Financial Times’s Clive Cookson.
Meanwhile, in ant genome news, an international team of researchers reports in today’s Science that they have sequenced the genomes of two different species of ants. One is a Florida carpenter ant, which lives in large colonies that depend on one queen for as many as ten years. The other is a the Indian jumping ant, which lives in smaller, less rigidly social structures in which a queen is easily replaced. Researchers hope to find genetic differences linked to the different behaviors.
Gwyneth Dickey has a good account of it in Science News. She reports that the project has already found differences in gene expression between two kinds of workers in the Florida species: The workers that go out to find food have more of a certain brain signaling molecule than workers that stay behind to defend the nest. Figures.
Katherine Harmon in Scientific American.
Grist: The Science paper’s abstract. The full article costs money. The University of Pennsylvania’s news release, which leads with the idea that this research establishes a new model species for epigenetics studies.
-Boyce Rensberger