Table 1.
Ratio of expression between X chromosome(s) and autosomes for males and females using minimum RPKM threshold
| Genes taken into account | Number of genes retained | Female | Male | |||
|---|---|---|---|---|---|---|
| X | A | XX/AA ratio | p value* | X/AA ratio | p value* | |
| All genes | 13,708 | 19,230 | 0.00 | <2.20E−16 | 0.00 | <2.20E−16 |
| Genes with RPKM >1 | 1886 | 9087 | 0.45 | <2.20E−16 | 0.83 | 1.16E−04 |
| Genes with RPKM >2 | 1484 | 7871 | 0.58 | <2.20E−16 | 0.94 | 0.372 |
| Genes with RPKM >3 | 1260 | 7010 | 0.62 | <2.20E−16 | 0.99 | 0.891 |
| Genes with RPKM >4 | 1069 | 6275 | 0.69 | <2.20E−16 | 0.91 | 0.119 |
All genes or different mean RPKM cutoffs have been considered to filter expressed genes
* p values were calculated using Wilcoxon rank sum tests to compare X-linked and autosomal genes expression for a given morph