期刊
GENETIC RESOURCES AND CROP EVOLUTION
卷 64, 期 8, 页码 1927-1935出版社
SPRINGER
DOI: 10.1007/s10722-016-0483-z
关键词
Altitude; Biofortification; Commonwealth Potato Collection (CPC); Minerals; ICP-MS; Solanum tuberosum L.; Tuber
资金
- International Office, University of Nottingham
- Rural and Environment Science and Analytical Services Division (RESAS) of the Scottish Government
The variation in tuber mineral concentrations amongst accessions of wild tuber-bearing Solanum species in the Commonwealth Potato Collection (CPC) was evaluated under greenhouse conditions. Selected CPC accessions, representing the eco-geographical distribution of wild potatoes, were grown to maturity in peat-based compost under controlled conditions. Tubers from five plants of each accession were harvested, bulked and their mineral composition analysed. Among the germplasm investigated, there was a greater range in tuber concentrations of some elements of nutritional significance to both plants and animals, such as Ca, Fe and Zn (6.7-fold, 3.6-fold, and 4.5-fold, respectively) than others, such as K, P and S (all less than threefold). Significant positive correlations were found between mean altitude of the species' range and tuber P, K, Cu and Mg concentrations. The amount of diversity observed in the CPC collection indicates the existence of wide differences in tuber mineral accumulation among different potato accessions. This might be useful in breeding for nutritional improvement of potato tubers.
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