Gene bank is collection of

Gene bank is the repositories where biological material is collected, stored, and made available for the future purpose. The main role of plant gene banks is to preserve genetic diversity, in the form of seeds or cuttings in the case of plants reproduced vegetatively and subsequently make this material, together with associated information, available for future use in research and plant breeding. A seed bank preserves dried seeds by storing them at a very low temperature. Spores and pteridophytes are conserved in seed banks. In tissue bank, buds, protocorm and meristematic cells are conserved through particular light and temperature arrangements in a nutrient medium. This technique is used to preserve seedless plants and plants which reproduce asexually. Pollen bank is a method in which pollen grains are stored. Field gene bank is a method of planting plants for the conservation of genes.