Phylogenetic trees based on the sequence of genes similar to SPO11 in animals, fungi, plants, protists and archaea have led scientists to believe that the version Spo11 currently in eukaryotes emerged in the last common ancestor of eukaryotes and archaea.
As árbores filoxenéticas elaboradas baseándose na secuencia de xenes similares a SPO11 en animais, fungos, plantas, protistas e arqueas levaron aos científicos a crer que a versión Spo11 actual dos eucariotas xurdiu no último antepasado común de eucariotas e arqueas.