Some genetic material is saved as seed or as tissue culture plants.
Tissue culture is a process where tiny plantlets are maintained on a sterile artificial media containing nutrients and growth hormones. Collection of wild beach strawberry, Fragaria chiloensis, originating from coastal regions of British Columbia. Older cultivars have been discarded in favour of higher yielding or better quality clones. Possible sources of disease or insect resistance or local adaptation may have been discarded. In Canada, the disappearance of wild crop germplasm is largely due to deforestation, clearing of marginal land for agricultural purposes and urbanization.