Figure 2.

Sex-biased differential expression in Drosophila. Scatter plots show global expression in Drosophila testing different sex and tissue conditions. Data are pairwise comparisons of natural log (Ln) Cy3/Cy5 signal ratios averaged from dye flipped and biological replicate experiments. Black color indicates expression ratios that fall within a two-fold cutoff. Microarray element species greater than two-fold are color coded as indicated on each scatter plot. Yellow points indicate 2-fold differences that fail to correspond to the expression variables analyzed. The number of element species included in each pairwise comparison that met stringency conditions are indicated in parentheses. (a) y¹ w^67c males versus y¹ w^67c females (n = 10,688); (b) male versus female progeny of homozygous tud¹ bw¹ sp¹ females (n = 12,836); (c)y¹ w^67c males, no gonads versus y¹ w⁶⁷ female, no gonads (n = 9,778); (d)y¹ w^67c testis versus y¹ w^67c ovary (n = 11,338); (e) y¹ w^67c testis versus y¹ w^67c y¹ w^67c male, no gonads (n = 12,461); (f) y¹ w^67c ovary versus y¹ w^67c female, no gonads (n = 11,223).