Table 2.
Likelihood ratio test of branch site model performed on 296 amino acids (888 bp) of the HSP 40 kDa including the 29 of the 32 unique alleles (A11, A12 and A18 hybrid alleles are excluded from the analysis) of B. calyciflorus s.s. and B. fernandoi, B. angularis, B. diversicornis and B. rubens.
| Branch site model | Branch | 2∆l | df | p-value | l | BEBs |
|---|---|---|---|---|---|---|
| Selection | CD | 7.398576 | 1 | 0.0065 | − 3477.294043 | – |
| Neutral | − 3480.993331 | |||||
| Selection | C | 0 | 1 | 1.0000 | − 3480.993266 | – |
| Neutral | − 3480.993266 | |||||
| Selection | D | 3.859588 | 1 | 0.0495 | − 3477.544980 | – |
| Neutral | − 3479.474774 |
Phylogeny is based on 532 bp of the ITS1. For each branch selection test, we provide log likelihood (l) value of the compared tests (2∆l), degrees of freedom (df), and the p-value. No sites were inferred to be under positive selection by BEB in this test framework.