Fuente: WIPO "tomato" The present invention relates generally to the use of auxin-type phytohormones to induce diploid (2n) pollen formation in a plant. More particularly the invention relates to a method to modulate meiosis in male germ cells to ectopically induce meiotic restitution and associated formation of diploid pollen. This method provides a straightforward and human controlled way to create polyploid offspring (plant species with more than the usual two sets of chromosomes) with maximum integration of the genetic diversity of the parental line(s).