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Optimization of the composition of crop collections for ex situ conservation

Published online by Cambridge University Press:  28 January 2009

R. van Treuren ,
J. M. M. Engels ,
R. Hoekstra  and
Th. J. L. van Hintum
R. van Treuren*
Affiliation:
Centre for Genetic Resources, The Netherlands, Wageningen University and Research Centre, PO Box 16, 6700 AA, Wageningen, The Netherlands
J. M. M. Engels
Affiliation:
Bioversity International, Via dei Tre Denari, 472a, 00057 Maccarese, Rome, Italy
R. Hoekstra
Affiliation:
Centre for Genetic Resources, The Netherlands, Wageningen University and Research Centre, PO Box 16, 6700 AA, Wageningen, The Netherlands
Th. J. L. van Hintum
Affiliation:
Centre for Genetic Resources, The Netherlands, Wageningen University and Research Centre, PO Box 16, 6700 AA, Wageningen, The Netherlands
*
*Corresponding author. E-mail: [email protected]
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Abstract

Many crop genetic resources collections have been established without a clearly defined conservation goal or mandate, which has resulted in collections of considerable size, unbalanced composition and high levels of duplication. Attempts to improve the composition of collections are hampered by the fact that conceptual views to optimize collection composition are very rare. An optimization strategy is proposed herein, which largely builds on the concepts of core collection and core selection. The proposed strategy relies on hierarchically structuring the crop gene pool and assigning a relative importance to each of its different components. Comparison of the resulting optimized distribution of the number of accessions with the actual distribution allows identification of under- and over-representation within a collection. Application of this strategy is illustrated by an example using potato. The proposed optimization strategy is applicable not only to individual genebanks, but also to consortia of cooperating genebanks, which makes it relevant for ongoing activities within projects that aim at sharing responsibilities among institutions on the basis of rational conservation, such as a European genebank integrated system and the global cacao genetic resources network CacaoNet.

Keywords

collection compositiongenebanksgenetic resourcesoptimization strategy
Type
Research Article
Information
Plant Genetic Resources , Volume 7 , Issue 2 , August 2009 , pp. 185 - 193
Copyright
Copyright © NIAB 2009

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References

Bonnier, FJM, Reinink, K and Groenwold, R (1992) New sources of major gene resistance in Lactuca to Bremia lactucae. Euphytica 61: 203–211.CrossRefGoogle Scholar
Cruz, V, Nason, J, Luhman, R, Marek, L, Shoemaker, R, Brummer, E and Gardner, C (2006) Analysis of bulked and redundant accessions of Brassica germplasm using assignment tests of microsatellite markers. Euphytica 152: 339–349.CrossRefGoogle Scholar
Endler, JA (1986) Natural Selection in the Wild. Princeton, NJ: Princeton University Press.Google Scholar
Engels, JMM and Visser, L (2003) A guide to effective management of germplasm collections. IPGRI Handbook for Genebanks No. 6. Rome: International Plant Genetic Resources Institute.Google Scholar
FAO(1998) The State of the World's Plant Genetic Resources for Food and Agriculture. Rome: Food and Agriculture Organization of the United Nations.Google Scholar
Frankel, OH and Brown, AHD (1984) Plant genetic resources today: a critical appraisal. In: Holden, JHW and Williams, JT (eds) Crop Genetic Resources: Conservation and Evaluation. London: George Allen & Urwin Ltd, pp. 249–257.Google Scholar
Greene, SL and Morris, JB (2001) The case for multiple-use plant germplasm collections and a strategy for implementation. Crop Science 41: 886–892.CrossRefGoogle Scholar
Hammer, K (1993) The 50th anniversary of the Gatersleben genebank. Plant Genetic Resources Newsletter 91/92: 1–8.Google Scholar
Hanneman, RE Jr (1994) Assignment of endosperm balance numbers to the tuber-bearing Solanums and their close non-tuber-bearing relatives. Euphytica 74: 19–25.CrossRefGoogle Scholar
Harlan, JR and de Wet, JMJ (1971) Towards a rational classification of cultivated plants. Taxon 20: 509–517.CrossRefGoogle Scholar
Jansen, J and van Hintum, ThJL (2007) Genetic distance sampling – a novel sampling method for obtaining core collections using genetic distances with an application to cultivated lettuce. Theoretical and Applied Genetics 114: 421–428.CrossRefGoogle ScholarPubMed
Johnston, SA, den Nijs, TPM, Peloquin, SJ and Hanneman, RE Jr (1980) The significance of genic balance to endosperm development in interspecific crosses. Theoretical and Applied Genetics 57: 5–9.CrossRefGoogle ScholarPubMed
Lebeda, A, Doležalová, I and Astley, D (2004 a) Representation of wild Lactuca spp. (Asteraceae, Lactuceae) in world genebank collections. Genetic Resources and Crop Evolution 51: 167–174.CrossRefGoogle Scholar
Lebeda, A, Doležalová, I, Feráková, V and Astley, D (2004 b) Geographical distribution of wild Lactuca species (Asteraceae, Lactuceae). The Botanical Review 70: 328–356.CrossRefGoogle Scholar
Loskutov, IG (1999) Vavilov and his institute. A History of the World Collection of Plant Genetic Resources in Russia. Rome: International Plant Genetic Resources Institute.Google Scholar
Morris, JB and Greene, SL (2001) Defining a multiple-use germplasm collection for the genus Trifolium. Crop Science 41: 893–901.CrossRefGoogle Scholar
Plucknett, DL, Smith, HJH, Williams, JT and Anishetty, NM (1987) Gene Banks and the World's Food. Princeton, NJ: Princeton University Press.CrossRefGoogle Scholar
Sackville Hamilton, NR, Engels, JMM and van Hintum, ThJL (2003) Rationalization of genebank management. In: Engels, JMM and Visser, L (eds) A guide to effective management of germplasm collections. IPGRI Handbook for Genebanks No. 6. Rome: International Plant Genetic Resources Institute, pp. 80–92.Google Scholar
Sackville Hamilton, NR, Engels, JMM, van Hintum, ThJL, Koo, B and Smale, M (2002) Accession management – combining or splitting accessions as a tool to improve germplasm management efficiency. IPGRI Technical Bulletin No. 5. Rome: IPGRI.Google Scholar
Spooner, DM and Castillo, RT (1997) Reexamination of series relationships of South American wild potatoes (Solanaceae: Solanum sect. Petota): evidence from chloroplast DNA restriction site variation. American Journal of Botany 84: 671–685.CrossRefGoogle ScholarPubMed
van den Berg, RG, Miller, JI, Ugarte, ML, Kardolus, JP, Villand, J, Nienhuis, J and Spooner, DM (1998) Collapse of morphological species in the wild potato Solanum brevicaule complex (Solanaceae: sect. Petota). American Journal of Botany 85: 92–109.CrossRefGoogle Scholar
van Hintum, ThJL (1999) The core selector, a system to generate representative selections of germplasm accessions. Plant Genetic Resources Newsletter 118: 64–67.Google Scholar
van Hintum, ThJL, Brown, AHD, Spillane, C and Hodgkin, T (2000) Core collections of plant genetic resources. IPGRI Technical Bulletin No. 3. Rome: IPGRI.Google Scholar
van Hintum, ThJL, Sackville Hamilton, NR, Engels, JMM and van Treuren, R (2002) Accession management strategies: splitting and lumping. In: Engels, JMM, Rao, VR, Brown, AHD and Jackson, MT (eds) Managing Plant Genetic Resources. Wallingford: CABI Publishing, pp. 113–120.Google Scholar
van Hintum, ThJL, van Treuren, R, van de Wiel, CCM, Visser, DL and Vosman, B (2007) The distribution of genetic diversity in a Brassica oleracea genebank collection related to the effects on diversity of regeneration, as measured with AFLPs. Theoretical and Applied Genetics 114: 777–786.CrossRefGoogle Scholar
van Treuren, R and van Hintum, ThJL (2003) Marker-assisted reduction of redundancy in germplasm collections: genetic and economic aspects. Acta Horticulturae (ISHS) 623: 139–149.CrossRefGoogle Scholar
van Treuren, R, Bas, N, Goossens, P, Jansen, H and van Soest, LJM (2005) Genetic diversity in perennial ryegrass and white clover among old Dutch grasslands as compared to cultivars and nature reserves. Molecular Ecology 14: 39–52.CrossRefGoogle ScholarPubMed
van Treuren, R, van Hintum, ThJL and van de Wiel, CCM (2008) Marker-assisted optimization of an expert-based strategy for the acquisition of modern lettuce varieties to improve a genebank collection. Genetetic Resources and Crop Evolution 55: 319–330.CrossRefGoogle Scholar
van Treuren, R, van Soest, LJM and van Hintum, ThJL (2001) Marker-assisted rationalisation of genetic resources collections: a case study in flax using AFLPs. Theoretical and Applied Genetics 103: 144–152.CrossRefGoogle Scholar
Widrlechner, MP (1997) Managerial tools for seed regeneration. Plant Varieties and Seeds 10: 185–193.Google Scholar
Widrlechner, MP and Burke, LA (2003) Analysis of germplasm distribution patterns for collections held at the North Central Regional Plant Introduction Station, Ames, Iowa, USA. Genetic Resources and Crop Evolution 50: 329–337.CrossRefGoogle Scholar