Register for an account


Enter your name and email address below.

Your email address is used to log in and will not be shared or sold. Read our privacy policy.


Website access code

Enter your access code into the form field below.

If you are a Zinio, Nook, Kindle, Apple, or Google Play subscriber, you can enter your website access code to gain subscriber access. Your website access code is located in the upper right corner of the Table of Contents page of your digital edition.


Gene expression isn't that different

Gene ExpressionBy Razib KhanMarch 22, 2006 3:16 AM


Sign up for our email newsletter for the latest science news

A review paper worth checking out in Molecular Ecology, Variation within and among species in gene expression: raw material for evolution. The salient bit:

We find: (i) microarray-based measures of gene expression are precise given appropriate experimental design; (ii) there is large inter-individual variation, which is composed of a minor nongenetic component and a large heritable component; (iii) variation among populations and species appears to be affected primarily by neutral drift and stabilizing selection, and to a lesser degree by directional selection; and (iv) neutral evolutionary divergence in gene expression becomes nonlinear with greater divergence times due to functional constraint.

In Darwin's Dangerous Idea Daniel Dennett contended that selection is "substrate neutral." If that is so than the wide open realm of gene regulation and differential expression is going to be a twist on a familiar theme.

    3 Free Articles Left

    Want it all? Get unlimited access when you subscribe.


    Already a subscriber? Register or Log In

    Want unlimited access?

    Subscribe today and save 70%


    Already a subscriber? Register or Log In