Table 2.
Examples of putative horizontal gene transfer events of SAM clusters among species of Fusarium inferred initially by NOTUNG reconciliation analysis and supported (+) or not supported (−) by constraint analysis using Shimodaira-Hasegawa and Approximately Unbiased (SH-AU) tests and by synonymous site divergence analysis
| Cluster | Potential Donor | Potential Recipient | NOTUNG | SH-AUa | Synonymous Site Divergenceb |
|---|---|---|---|---|---|
| SAM1 | F. hostae | F. austroamericanum-F. brasilicum-F. cortaderia | + | + | + |
| SAM1 | F. hostae | Fusarium sp. 66182 | + | nt | + |
| SAM1 | F. bulbicola | F. oxysporum | + | + | + |
| SAM3 | F. burgessii | FIESC18-FIESC24-F. kyushuense | + | + | + |
| SAM3 | F. denticulatum | F. begonia | + | nt | + |
| SAM4 | F. pseudonygamai | F. phyllophilum | + | + | + |
| SAM4 | F. newnesense | F. acuminatum | + | nt | + |
| SAM4 | F. subglutinans | F. circinatum | + | – | + |
| SAM5 | F. denticulatum-F. pseudcircinatum- F. udum | F. mangiferae | + | + | + |
| SAM5 | F. newnesense | F. concolor | + | + | + |
| SAM5 | F. tupiense | F. mexicanum | + | – | – |
a Results of the SH-AU tests were considered to be consistent with horizontal transfer only when P values from both tests were < 0.01. nt indicates that, given the tree topology in question, it was not possible to test the branch conflict indicative of the transfer event
b Results of the dS analysis were considered to be consistent with horizontal transfer when, for a given pairwise combination of taxa, the dS value for SAM genes was less than dS for housekeeping genes