Orthology confidence cutoff

POInT's orthology inferences have associated statistical confidence representing the likelihood of the best orthology assignment over the sum of the likelihoods of all possible orthology assignments. Hence higher values give greater confidence in the orthology assignments returned.

For events where biased fractionation is detected, these confidences include assigning each gene to a subgenome, and confidence values range from 0.0-1.0.

For events without biased fractionation (here the Yeast WGD), the orthology assignments are degenerate with respect to subgenomes, meaning that the assignment 000..0-111..1 and 111..1-000.0 are equivilent. As such, potential confidence values range from 0.0-0.5, and the picklist is populated accordingly.