Phylogenomic proof of Recurrent Demipolyploidization and Evolutionary Stalling of the "Triploid Bridge" in <i>Arundo</i> (Poaceae).

While the overall pattern of gCF and site concordance factor (sCF; a measure of phylogenetic concordance among sites irrespective of the genes they belong to) support was consistent across branches, highly significant differences between the two indices could be detected for the branch separating A. micrantha / A. plinii s.l. from A. donax / A. formosana at both genes and sites level (see the probability of equal frequencies rejection for genes, gEF_p, and for sites, sEF_p, for branch 13; Table S5 ), indicating

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