Table 6. Fractions of clustered tissue-specific genes.
| Tissue | No. Tissue-Specific Genes | No. Clustered Tissue-Specific Genes | Fraction in Cluster, % | Total No. of Tissue-Specific Gene Clusters | Fraction of Genes Duplicated in Clusters (No. Genes) | Tissue-Characteristic Proteins Expressed By Duplicated Genes in Clusters |
|---|---|---|---|---|---|---|
| Brain | 36 | 9 | 25 | 4 | 0.22 (2) | |
| Compound eyes | 6 | 0 | 0 | 0 | — | |
| Corpora allata-cardiaca complex | 52 | 8 | 15 | 4 | 0.25 (2) | Adipokinetic hormone |
| Maxillary galea | 1 | 0 | 0 | 0 | — | |
| Wing | 67 | 30 | 45 | 9 | 0.57 (17) | Cuticular protein/osiris |
| Wing disc | 54 | 8 | 15 | 4 | 0.25 (2) | Paralytic peptide binding protein |
| Testis | 745 | 327 | 44 | 113 | 0.20 (66) | Carboxypeptidase/ beta-tubulin/ pyruvate kinase |
| Ovary | 68a | 53a | 78 | 8 | 0.45 (24)a | Chorion |
| Midgut | 185 | 88 | 48 | 27 | 0.89 (78) | Carboxyesterase/ lipase/glucosidase/30kP protease/fatty acid-binding protein/trypsin/cuticle/SEC14/ Bm 122 |
| Malpighian tubule | 48 | 11 | 23 | 4 | 1.0 (11) | Sugar transporter/ Na+-dependent transporter/synaptic vesicle transporter/adenylate cyclase |
| Pheromone gland | 14 | 6 | 43 | 3 | 0.67 (4) | Fatty-acid reductase/aldehyde oxidase |
| Silkgland | 22 | 4 | 18 | 2 | 1.0 (4) | Sericin-like |
| Fat body | 13 | 5 | 38 | 2 | 0.6 (3) | 30-kDa protein |
| Epidermis | 26 | 17 | 63 | 6 | 0.82 (14) | Cuticular protein |
| Verson’s gland | 11 | 3 | 27 | 1 | 1.0 (3) | Serpin |
| Total | 1,365 | 569 | 42 | 187 | 0.40 (230) |
a
These numbers are low estimates since many chorion genes were known to be missing from the assembly (Eickbush and Izzo 2005).