Picking Up the Ball at the K/Pg Boundary: the Distribution of Ancient Polyploidies in the Plant Phylogenetic Tree As A Spandrel of Asexuality with Occasional Sex

Van de Peer and colleagues ([Fawcett et al., 2009][1]; [Lohaus and Van de Peer, 2016][2]) have written thought-provoking reviews and commentaries on the nonrandom accumulation of ancient polyploidies at the inferred Cretaceous/Tertiary (K/Pg) boundary in the inferred phylogenetic tree of sequenced