Table 1.

Examples of Functional Categories Found to be Transcriptionally Enriched in the Samples of Genes Under- and Overexpressed in Hybrid Females of D. melanogaster and D. simulans




Functional category (GMRC terma, P valueb)
Underexpressed Genes
    Metabolic and Regulatory Pathway Transcription factors (dme03022; P = 2.9 × 10-3)
    Molecular Function Nucleic acid binding activity (GO:0003676; P = 6.6 × 10-13)
RNA binding activity (GO:0003723; P = 4.6 × 10-4)
Helicase activity (GO:0004386; P = 3.3 × 10-2)
    Biological Process DNA metabolism (GO:0006259; P = 1.1 × 10-9)
Cell growth and/or maintenance (GO:0008151; P = 8.8 × 10-7)
Transcription (GO:0006350; P = 4.1 × 10-5)
    Cellular Component Nucleus (GO:0005634; P = 2.0 × 10-25)
Replication fork (GO:0005657; P = 5.0 × 10-6)
Transcription factor complex (GO:0005667; P = 2.8 × 10-4)
Overexpressed Genes
    Metabolic and Regulatory Pathway Oxidative phosphorylation (dme00190; P = 1.6 × 10-7)
Fatty acid metabolism (dme00071; P = 4.6 × 10-6)
Glycolysis/Gluconeogenesis (dme00010; P = 6.3 × 10-6)
    Molecular Function Oxireductase activity (GO:0016491; P = 2.8 × 10-10)
Serine-type peptidase activity (GO:0008236; P = 1.3 × 10-7)
Hydrolase activity (GO:0016787; P = 2.8 × 10-2)
    Biological Process Ion transporter (GO:0006811; P = 4.5 × 10-4)
Defense response (GO:0006952; P = 5.8 × 10-3)
Pathways of carbohydrate metabolism (GO:0006092; P = 7.7 × 10-3)
    Cellular Component Membrane (GO:0016020; P = 8.2 × 10-12)
Microsome (GO:0005792; P = 3.2 × 10-6)

Mitochondrial electron transport chain (GO:0005746; P = 4.7 × 10-3)

a GMRC, Gene Merge Class (see Methods).

b After Bonferroni correction.