Skip to main content

Advertisement

Table 3 Numbers of the different evolutionary events inferred in order to reconcile the plant and smut phylogenies by TreeMap (maximizing the number of cospeciation events).

From: Cophylogeny of the anther smut fungi and their caryophyllaceous hosts: Prevalence of host shifts and importance of delimiting parasite species for inferring cospeciation

Approach Plant tree Fungal tree Cospeciation Duplication Host shift Sorting events Nb of events P
Keeping one strain per host species Max A1 11 11 1 60 83 0.021*
   A2 12 11 0 58 81 0.041*
  Min A1 11 12 0 68 91 0.023*
   A2 11 12 0 67 90 0.019*
Keeping a single representative per fungal species MinT B1 5 10 0 48 63 >0.5
   B2 5 10 0 46 61 >0.5
  MaxT B1 6 9 0 43 58 0.287
   B2 6 9 0 41 56 0.268
  1. Eight data sets were used. For the fungi, "A" trees contain one strain per smut species and per host (see Fig. 3) and "B" trees a single representative per smut species (see Fig. 4), and two possible topologies were used, "1" and "2", depending on the position of MvSa. For the plants, poorly supported nodes were resolved in order to maximize the congruence with the fungal trees in the "Max" trees and minimize it in the "Min" trees, and the "T" trees contain only host species on which fungal species are well established (i.e. ignoring the opportunistic infections). See also Figs. 3 and 4 for the correspondence between host and parasite phylogenies for the least congruent combinations.