Table 1.
Results of spidroin gene family selection analyses
| FUSTr family | Annotation | Pervasive selection (FUBAR) | Episodic selection (aBSREL) | Relaxed selection (RELAX) | Relax K |
|---|---|---|---|---|---|
| Family_5412 | Sp-907/Sp-74867 (C-terminal) | NA | Malkaridae sp. 17 | Australomimetus sp., Malkaridae sp. 17, T. brevignatha, T. waikamoi | K = 0.22 |
| Family_18703 | Sp-1339 (C-terminal) | NA | NA | T. brevignatha, T. filiciphilia, T. paludicola, T. perreirai, T. quasimodo, T. stelarobusta, T. waikamoi | K = 0.31 |
| Family_19435 | AgSp (repetitive region) | NA | T. polychromata | NA | NA |
| Family_21837 | AgSp (C-terminal) | NA | NA | T. tantalus | K = 0.09 |
| Family_68763 | MaSp (N-terminal) | 15 residues | NA | NA | NA |
| Family_30334 | AgSp (C-terminal) | 3 residues | NA | NA | NA |
| Family_54136 | AgSp (repetitive region) | NA | NA | NA | NA |
| Family_9974 | AcSp (C-terminal) | NA | NA | NA | NA |
For RELAX test, K parameter indicates degree of relaxation, with smaller values indicating greater relaxation in the test branches. AgSp, aggregate spidroin; MaSp, major ampullate spidroin; AcSp, Aciniform spidroin; Non-web building (cursorial) taxa are indicated in bold