Evidence of higher fertilization frequencies by pollen carrying one allele resulted in differences from expected random mating ratios.
[5][6] Evidence suggests that gametophytic selection may influence the fitness of seedlings in the next sporophytic generation.
[7] In experiments, Dianthus chinensis demonstrated that when pollen tubes had to grow a longer distance through the style the offspring had increased vigor and competitive ability.
[1] Gametophytic selection was apparently responsible for increased seed mass and radicle growth in selfed seedlings.
[7] Flowering plants may have seen benefits from gametophytic selection occurring during pollen-tube growth in the style.