Skip to main content

Thank you for visiting nature.com. You are using a browser version with limited support for CSS. To obtain the best experience, we recommend you use a more up to date browser (or turn off compatibility mode in Internet Explorer). In the meantime, to ensure continued support, we are displaying the site without styles and JavaScript.

  • Science and Society
  • Published:

Protecting crop genetic diversity for food security: political, ethical and technical challenges

Abstract

Crop genetic diversity — which is crucial for feeding humanity, for the environment and for sustainable development — is being lost at an alarming rate. Given the enormous interdependence of countries and generations on this genetic diversity, this loss raises critical socio-economic, ethical and political questions. The recent ratification of a binding international treaty, and the development of powerful new technologies to conserve and use resources more effectively, have raised expectations that must now be fulfilled.

This is a preview of subscription content, access via your institution

Relevant articles

Open Access articles citing this article.

Access options

Buy this article

Prices may be subject to local taxes which are calculated during checkout

References

  1. FAO. World agriculture: towards 2015/2030. FAO corporate document repository [online], <http://www.fao.org/documents/show_cdr.asp?url_file=/DOCREP/005/Y4252E/Y4252E00.HTM> (2005).

  2. FAO. International Treaty for Plant Genetic Resources for Food and Agriculture. FAO Conference, Rome [online], <ftp://ext-ftp.fao.org/ag/cgrfa/it/ITPGRe.pdf> (2001).

  3. FAO. The state of the world's plant genetic resources for food and agriculture. [online], <http://www.fao.org/WAICENT/FAOINFO/AGRICULT/AGP/AGPS/ Pgrfa/pdf/swrfull.pdf> (1997).

  4. Mangelsdorf, P. C. Genetic potentials for increasing yields of food crops and animals. Proc. Natl Acad. Sci. USA 56, 370–375 (1966).

    Article  CAS  Google Scholar 

  5. National Research Council. Genetic Vulnerability of Major Crops (National Academy of Sciences, Washington DC, 1972).

  6. Chang, T. T. in The Use of Plant Genetic Resources (Cambridge Univ. Press, Cambridge, 1989).

    Google Scholar 

  7. Shands, H. Plant genetic resource conservation: the role of the gene bank in delivering useful genetic materials to the research scientist. J. Hered. 81, 7–10 (1990).

    Article  Google Scholar 

  8. Ten Kate, K. & Laird, S. The Commercial Use of Biodiversity: Access to Genetic Resources and Benefit-Sharing (Earthscan, London, 1999).

    Google Scholar 

  9. Fowler, C. & Hodgkin, T. Plant genetic resources for food and agriculture: assessing global availability, Annu. Rev. Environ. Resour. 29, 143–179 (2004).

    Article  Google Scholar 

  10. McFerson, J. R., Lamboy, W. F. & Kresovich, S. Assessing user perceptions of genetic resources collections in crucifer crops. Crop Sci. 36, 831–838 (1996).

    Article  Google Scholar 

  11. Gómez-Campo, C. Long term seed preservation: the risk of using inadequate containers is very high. Monographs ETSIA, Univ. Politécnica de Madrid 163, 1–10 (2002).

    Google Scholar 

  12. Holden, J. H. W. in Crop Genetic Resources: Conservation and Evaluation (Allen & Unwin, London, 1984).

    Google Scholar 

  13. Lyman, J. Progress and planning for germplasm conservation of major food crops. Plant Genet. Resour. Newsl. 60, 3–21 (1984).

    Google Scholar 

  14. Miller, J. C. & Tanksley, S. D. RFLP analysis of phytogenetic relationship and genetic variation in the genus Lycopersicon. Theor. App. Genet. 80, 437–448 (1990).

    Article  CAS  Google Scholar 

  15. Padulosi, S., Hodgkin, T. & Williams, J. T. in Managing Plant Genetic Diversity (CABI, Wallingford, UK, 2002).

    Google Scholar 

  16. Lund, B., Ortiz, R., Skovgaard, I. M., Waugh, R. & Anderson, S. B. Analysis of potential duplicates in barley genebank collections using re-sampling of micro-satellite data. Theor. Appl. Genet. 106, 1129–1138 (2003).

    Article  CAS  Google Scholar 

  17. Van Hintum, T. J. L. & Visser, D. L. Duplication within and between germplasm collections. II. Duplication in four European barley collections. Genet. Resour. Crop Evol. 42, 135–145 (1995).

    Article  Google Scholar 

  18. Altieri, M. A. & Merrick, L. C. In situ conservation of crop genetic resources through maintenance of traditional farming systems. Econ. Bot. 41, 86–96 (1987).

    Article  Google Scholar 

  19. Brush, S. (ed.) Genes in the Field: On-farm Conservation of Crop Diversity (International Development Resources Centre/International Plant Genetic Resources Institute/Lewis, Boca Raton, Florida, 2000).

    Google Scholar 

  20. Brush, S. Providing farmers' rights through in situ conservation of crop genetic resources. CGRFA Background Study Paper No. 3 [online], <ftp://ext-ftp.fao.org/ag/cgrfa/BSP/bsp3E.pdf> (1994).

    Google Scholar 

  21. Jarvis, D. I., Zoes, V., Nares, D. & Hodgkin, T. On-farm management of crop genetic diversity and the Convention on Biological Diversity's programme of work on agricultural biodiversity. Plant Genet. Resour. Newsl. 138, 5–17 (2004).

    Google Scholar 

  22. Jarvis, D. I. et al. A Training Guide for In Situ Conservation On-farm Version 1 (International Plant Genetic Resource Institute, Rome, 2000).

    Google Scholar 

  23. Prescott-Allen, R. & Prescott-Allen, C. In Situ Conservation of Crop Genetic Resources: a Report to the International Board for Plant Genetic Resources (International Board for Plant Genetic Resources, Rome, 1981).

    Google Scholar 

  24. Prescott-Allen, R. & Prescott-Allen, C. Genes from the Wild 2nd edn (Kogan Page, London, 1983).

    Google Scholar 

  25. Jarvis, A. et al. Biogeography of wild arachis: assessing conservation status and setting future priorities. Crop. Sci. 43, 1100–1108 (2003).

    Article  Google Scholar 

  26. CGRFA. Progress report on the development of a network of in situ conservation areas. GIAHS home page [online], <ftp://ext-ftp.fao.org/ag/cgrfa/cgrfa9/r9w13e.pdf> (2002).

  27. Kloppenburg, J. R. Jr (ed.) Seeds and Sovereignty — The Use and Control of Plant Genetic Resources (Duke Univ. Press, Durham, North Carolina, 1988).

    Google Scholar 

  28. Palacios, X. F. Contribution to the estimation of countries' interdependence in the area of plant genetic resources. CGRFA Background Study Paper No. 7 Rev. 1 [online], <ftp://ext-ftp.fao.org/ag/cgrfa/BSP/bsp7E.pdf> (1998).

    Google Scholar 

  29. Vavilov, N. I. Centers of origin of cultivated plants. Bull. App. Bot. Genet. Plant Breed. 16, 1–248 (1926).

    Google Scholar 

  30. Vavilov, N. I. Phytogeographic basis of plant breeding. The origin, variation, immunity and breeding of cultivated plants. Chronica Bot. 13, 1–366 (1951).

    Google Scholar 

  31. Zeven, A. C. & De Wet, J. M. J. Dictionary of Cultivated Plants and their Regions of Diversity Excluding Most Ornamentals, Forest Trees and Lower Plants 2nd edn (Pudoc, Wageningen, Netherlands, 1982).

    Google Scholar 

  32. Gollin, D. in Agricultural Values of Plant Genetic Resources (CABI, Wallingford, UK, 1998).

    Google Scholar 

  33. Frankel, O. H. in Genetic Resources in Plants — Their Exploration and Conservation (Blackwell, London, 1970).

    Google Scholar 

  34. Correa, C. Sovereign and property rights over plant genetic resources. CGRFA Background Study Paper No. 2 [online], <ftp://ext-ftp.fao.org/ag/cgrfa/BSP/bsp2E.pdf> (1994).

    Google Scholar 

  35. Correa, C. The access regime and the implementation of the FAO International Treaty on Plant Genetic Resources in the Andean group countries. J. World Intellect. Prop. Rights 6, 795–806 (2003).

    Article  Google Scholar 

  36. Correa, C. in Strengthening Partnerships in Agricultural Research for Development in the Context of Globalization: Proceedings of the GFAR-2000 Conference 40–43 (GFAR/IPGRI, Rome, 2003). (2003).

    Google Scholar 

  37. Fowler, C. & Lower, R. The politics of plant breeding. Plant Breeding Rev. 25, 21–56 (2004).

    Google Scholar 

  38. Palmberg, C. & Esquinas-Alcázar, J. T. The role of the United Nations agencies and other international organizations in the conservation of plant genetic resources. For. Ecol. Manage. 35, 171–197 (1990).

    Article  Google Scholar 

  39. Frankel, O. H. & Bennet, E. Genetic Resources in Plants — Their Exploration and Conservation (Blackwell Scientific, Oxford, 1970).

    Google Scholar 

  40. Frankel, O. H. & Hawkes, J. G. Crops Genetic Resources for Today and Tomorrow (Cambridge Univ. Press, 1975).

    Google Scholar 

  41. Holden, J. H. W. & Williams, J. T. Crop Genetic Resources: Conservation and Evaluation (Allen & Unwin, London, 1984).

    Google Scholar 

  42. CGRFA. Overview of the FAO Global System for the Conservation and Sustainable Utilization of Plant Genetic Resources for Food and Agriculture and its potential contribution to the implementation of the International Treaty on Plant Genetic Resources for Food and Agriculture. FAO paper, Rome [online], <ftp://ext-ftp.fao.org/ag/cgrfa/cgrfa10/r10w3e.pdf> (2004).

  43. FAO. Global Plan of Action for the Conservation and Sustainable Utilization of Plant Genetic Resources for Food and Agriculture. International Technical Conference on Plant Genetic Resources, Leipzig, Germany [online], <http://www.fao.org/WAICENT/FaoInfo/Agricult/AGP/AGPS/ Pgrfa/Pdf/GPAENG.PDF> (1996).

  44. Commission on Genetic Resources for Food and Agriculture. World Information and Early Warning System on PGRFA. WIEWS home page [online], <http://apps3.fao.org/wiews/wiews.jsp?i_l=EN> (2002).

  45. Kalaugher, E. & Visser, B. A summary and analysis of existing international plant genetic resources networks. CGRFA Background Study Paper No. 16 [online], <ftp://ext-ftp.fao.org/ag/cgrfa/BSP/bsp16e.pdf> (2002).

    Google Scholar 

  46. FAO. International code of conduct for plant germplasm collecting and transfer. FAO Conference, Rome [online], <ftp://ext-ftp.fao.org/ag/cgrfa/GS/CCgermpE.pdf> (2003).

  47. CGRFA. Progress on the draft Code of Conduct on Biotechnology as it relates to genetic resources for food and agriculture: policy issues, gaps and duplications. Code of Conduct on Biotechnology web site [online], <http://www.fao.org/ag/cgrfa/biocode.htm> (2004).

  48. Secretariat of the Convention on Biological Diversity. Convention on Biological Diversity Handbook 3rd edn [online], <http://www.biodiv.org/handbook/> (2003).

  49. Correa, C. in Strengthening Partnerships in Agricultural Research for Development in the Context of Globalization: Proceedings of the GFAR-2000 Conference 34–39 (GFAR/IPGRI, Rome, 2003). (2003).

    Google Scholar 

  50. Commission on Genetic Resources for Food and Agriculture. Report on the status of the Global Crop Diversity Trust. Start with a Seed home page [online], <http://www.startwithaseed.org/items/homepage.php> (2004).

  51. Hodgkin, T., Rao, V. R., Cibrian-Jaramillo, A. & Gaiji, S. The use of ex situ conserved plant genetic resources. Plant Genet. Resour. 1, 19–29 (2003).

    Article  Google Scholar 

  52. Tanksley, S. D. & McCouch, S. R. Seed banks and molecular maps: unlocking genetic potential from the wild. Science 277, 1063–1066 (1997).

    Article  CAS  Google Scholar 

  53. Agreement to establish a consortium for the Generation Challenge Program. Cultivating plant diversity for the resource-poor [online], <http://www.generationcp.org/sccv10/sccv10_upload/ Consortium_agreement.pdf> (2004).

  54. Görg, C. & Brand, U. Global enviromental politics and competition between nation-states: on the regulation of biological diversity. Rev. Int. Polit. Econ. 7, 371–398, (2000).

    Article  Google Scholar 

  55. Fanton, M. & Fanton, J . The Seed Savers' Handbook (Seed Savers' Network, Sydney, 1993).

    Google Scholar 

  56. Fernald, A., Milano, S. & Sardo, P. A World of Presidia. Food Culture & Community (Slow Food Editore, 2004).

    Google Scholar 

  57. Kronstad, W. E. Genetic Improvement of Yield in Wheat (Crop Science Society of America, Madison, Wisconsin, 1986).

    Google Scholar 

  58. Kihara, H. Origin and history of 'Daruma', a parental variety of Norin 10. Proc. Sixth Int. Wheat Genet. Symp. 6, 13–19 (1983).

    Google Scholar 

  59. Esquinas-Alcázar, J. T. Genetic Resources of Tomatoes and Wild Relatives (International Board for Plant Genetic Resources, Rome, 1981).

    Google Scholar 

  60. Doney, D. L. & Whitney, E. D. Genetic enhancement in Beta for disease resistance using wild relatives — a strong case for the value of genetic conservation. Econ. Bot. 44, 445–451 (1990).

    Article  Google Scholar 

  61. FAO Nutritional Division. Nutritional value of some of the crops under discussion in the development of a multilateral system. CGRFA Background Study Paper No. 11 [online], <ftp://ext-ftp.fao.org/ag/cgrfa/BSP/bsp11e.pdf> (2001).

Download references

Acknowledgements

I am very grateful to M. Rucli and M. Smith for their important assistance in the preparation of this paper. I also want to thank F. Ayala, D. Boerma, C. Correa, C. Fowler, P. Gulick, G. Hawtin, T. Hodgkin, C. Stannard, S. Tanksley, E. Tewolde and Á. Toledo for their contributions. This paper expresses the views of the author and does not necessarily reflect the views of FAO and its member countries.

Author information

Authors and Affiliations

Authors

Ethics declarations

Competing interests

The author declares no competing financial interests.

Supplementary information

Related links

Related links

FURTHER INFORMATION

Action Group on Erosion, Technology and Concentration web site

Biological Diversity in Food and Agriculture

Commission on Genetic Resources for Food and Agriculture

Ethics in Food and Agriculture

Generation Challenge Programme web site

Globally Important Ingenious Agricultural Heritage Systems

International Union for the Protection of New Varieties of Plants web site

The Convention on Biological Diversity

The Global Crop Diversity Trust — Start with a Seed

The International Agricultural Research Centers

The Seed Savers Network

The Slow Food web site

The State of the World's Plant Genetic Resources for Food and Agriculture

Trade-Related Aspects of Intellectual Property Rights

World Intellectual Property Organization web site

Rights and permissions

Reprints and permissions

About this article

Cite this article

Esquinas-Alcázar, J. Protecting crop genetic diversity for food security: political, ethical and technical challenges. Nat Rev Genet 6, 946–953 (2005). https://doi.org/10.1038/nrg1729

Download citation

  • Issue Date:

  • DOI: https://doi.org/10.1038/nrg1729

This article is cited by

Search

Quick links

Nature Briefing

Sign up for the Nature Briefing newsletter — what matters in science, free to your inbox daily.

Get the most important science stories of the day, free in your inbox. Sign up for Nature Briefing