Expression of a receptor protein has, for the first time, been definitively correlated with sensitivity to a particular odorant. This receptor, expressed in the nematode Caenorhabditis elegans, appears to be distinct from the putative vertebrate odorant receptors.

13.

braska and Crook, Colorado, that had been collected by Sibley and Short (1964). The character index scores that we assigned were compared to those of Sibley and Short (unpubl. data) using two statistical tests. First, we correlated the plumage character scores that we assigned to each specimen with scores assigned to the same specimens by Sibley and Short. All 20 correlation coefficients (nine ...