Abstract
Since the 1980s, a large collection of maize has been preserved in the China National Genebank. To facilitate the evaluation and utilization of these valuable germplasm resources, a core collection was established. The collection was firstly divided into two groups, i.e. the landraces and inbred lines. The percentage of the original collection to be included in the core was given as 7% based on a previous study of sampling strategies in maize. Each group was sequentially stratified based on administrative provinces or regions and kernel types, and a clustering method was applied in further stratification. A logarithmic strategy was used to determine the number of entries in the core at each step. The process resulted in the maize core comprising 951 landraces and 242 inbred lines. Shannon-Weaver diversity index and means were used to validate the core. The core can be used effectively in further in-depth research and maize improvement.
Article PDF
Similar content being viewed by others
Avoid common mistakes on your manuscript.
References
Bisht I.S., Mahajan R.K. and Patel D.P. 1998. The use of characterization data to establish the Indian mungbean core collection and assessment of genetic diversity. Genet. Resour. Crop Evol. 45: 127–133.
Brown A.H.D. 1989. Core collections: a practical approach to genetic resources management. Genome 31: 818–824.
Brown A.H.D., Grace J.P. and Speer S.S. 1987. Designation of a “core” collection of perennialGlycine. Soybean Genet. Newsl. 14: 59–70.
Charmet G. and Balfourier F. 1995. The use of geostatistics for sampling a core collection of perennial ryegrass populations. Genet. Resourc. Crop Evol. 42: 303–309.
Frankel O.H. and Brown A.H.D. 1984. Current plant genetic resources: a critical appraisal.In: Genetics: New Frontiers, vol. IV, Oxford and IBH Publ. Co., New Delhi, India, pp. 1–11.
Galwey N.W. 1995. Verifying and validating the representativeness of a core collection. In: Hodgkin T., Brown A.H.D., van Hintum Th.J.L. and Morales E.A.V. (eds), Core Collection of Plant Genetic Resources. IPGRI. A Wiley-Sayce Publication, pp. 187–198.
Goodman M.M. and Brown W.L. 1988. Races of corn. In: Sprague G.F. and Dudley J.W. (eds), Corn and Corn Improvement, 3rd edn. ASA-CSSA-SSSA, Madison.
Grenier C., Bramel-Cox P.J. and Hamon P. 2001. Core collection of sorghum I. Stratification based on eco-geographical data. Crop Sci. 41: 234–240.
Grenier C., Bramel-Cox P.J., Noirot M., Prasada Rao K.E. and Hamon P. 2000. Assessment of genetic diversity in three subsets constituted from the ICRISAT sorghum collection using random vs. non-random sampling procedures A. Using morpho-agronomical and passport data. Theor. Appl. Genet. 101: 190–196.
Hallauer A.R. 2001. Specialty Corns. 2nd edn. CRC Press, Boca Raton.
Huaman Z., Aguilar C. and Ortiz R. 1999. Selection a Peruvian sweetpotato core collection on the basis of morphological, eco-geographical, and disease and pest reaction data. Theor. Appl. Genet. 98: 840–844.
Igartua E., Gracia M.P., Lasa J.M., Medina B., Molina-Cano J.L., Montoya J.L. and Romagosa I. 1998. The Spanish barley core collection. Genet. Resour. Crop Evol. 45: 475–481.
Jaradat A.A. 1995. The dynamics of a core collection. In: Hodgkin T., Brown A.H.D., van Hintum Th.J.L. and Morales E.A.V. (eds), Core Collection of Plant Genetic Resources. IPGRI, A Wiley-Sayce Publication, pp. 179–186.
Krause A. and Olson M. 2000. The Basics of S and S-PLUS. 2nd edn. Springer-Verlag, New York.
Li Y., Cao Y.S., Shi Y.S. and Wang T.Y. 2003a. Sampling strategy for establishing a core collection of maize landraces collected in Yunnan Province of China. Genet. Resour. Crop Evol. (in press).
Li Y., Shi Y.S., Cao Y.S. and Wang T.Y. 2003. A phenotypic diversity analysis of maize germplasm preserved in China. Maydica 47: 107–114.
Malosetti M. and Abadie T. 2001. Sampling strategy to develop a core collection of Uruguayan maize landraces based on morphological traits. Genet. Resour. Crop Evol. 48: 381–390.
Pecetti L., Annicchiarico P. and Damania A.B. 1992. Biodiversity in a germplasm collection of durum wheat. Euphytica 60: 229–238.
Poole R.W. 1974. An Introduction to Quantitative Ecology. McGraw-Hill, New York.
Rebourg C., Chastanet M., Gouesnard B., Welcker C., Dubreuil P. and Charcosset A. 2004. Maize introduction into Europe: the history reviewed in the light of molecular data. Theor. Appl. Genet. 106: 895–903.
Scippa G., Polignano G.B. and Uggenti P. 2001. Diversity analysis and core collection formation in Bari faba bean germplasm. Plant Genet. Resour. Newsl. 125: 33–38.
Taba S., Diaz J., Franco J. and Crossa J. 1998. Evaluation of Caribbean maize accessions to develop a core subset. Crop Sci. 38: 1378–1386.
Tai P.Y.P. and Miller J.D. 2001. A core collection forSaccharum spontaneum L. from the world collection of sugarcane. Crop Sci. 41: 879–885.
Upadhyaya H.D. and Ortiz R. 2001. A mini core subset for capturing diversity and promoting utilization of chickpea genetic resources in crop improvement. Theor. Appl. Genet. 102: 1292–1298.
Upadhyaya H.D., Bramel P.J. and Singh S. 2001. Development of a chickpea core subset using geographic distribution and quantitative traits. Crop Sci. 41: 206–210.
Upadhyaya H.D., Ortiz R., Bramel P.J. and Singh S. 2004. Development of a groundnut core collection using taxonomical, geographical and morphological descriptors. Genet. Resour. Crop Evol. 50: 139–148.
Van Hintum Th.J.L., Brown A.H.D., Spillane C. and Hodgkin T. 2000. Core Collections of Plant Genetic Resources. IPGRI Technical Bulletin No. 3.
Yozezawa K., Nomura T. and Morishima H. 1995. Sampling strategies for use in stratified germplasm collections. In: Hodgkin T., Brown A.H.D., van Hintum Th.J.L. and Morales E.A.V. (eds), Core Collection of Plant Genetic Resources. IPGRI, A Wiley-Sayce Publication.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Li, Y., Shi, Y., Cao, Y. et al. Establishment of a core collection for maize germplasm preserved in Chinese National Genebank using geographic distribution and characterization data. Genet Resour Crop Evol 51, 845–852 (2005). https://doi.org/10.1007/s10722-005-8313-8
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/s10722-005-8313-8