Figure 1 .

Alternative patterns of expression for genes showing a differential expression under inbreeding. Circles represent the level of expression of genes in an outbred control set (C, shaded circles), in an inbred highly depressed set (+D, in red), and in an inbred lowly depressed set (–D, in blue). Three gene-expression configurations are possible. In the nonprotective configuration, the most depressed set shows an expression that deviates from the outbred control expression more than that for the least depressed set. The opposite occurs in the protective configuration.