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Genetic variation for tuber mineral concentrations in accessions of the Commonwealth Potato Collection

Subramanian, Nithya K.; White, Phillip J.; Broadley, Martin R.; Ramsay, Gavin

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Authors

Nithya K. Subramanian

Phillip J. White

Gavin Ramsay



Abstract

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, 3.6, and 4.5-fold respectively) than others, such as (K, P and S; all <3-fold). 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.

Citation

Subramanian, N. K., White, P. J., Broadley, M. R., & Ramsay, G. (2017). Genetic variation for tuber mineral concentrations in accessions of the Commonwealth Potato Collection. Genetic Resources and Crop Evolution, 64(8), 1927-1935. https://doi.org/10.1007/s10722-016-0483-z

Journal Article Type Article
Acceptance Date Dec 16, 2016
Online Publication Date Jan 27, 2017
Publication Date 2017-12
Deposit Date Jan 20, 2017
Publicly Available Date Jan 27, 2017
Journal Genetic Resources and Crop Evolution
Print ISSN 0925-9864
Electronic ISSN 1573-5109
Publisher Springer Verlag
Peer Reviewed Peer Reviewed
Volume 64
Issue 8
Pages 1927-1935
DOI https://doi.org/10.1007/s10722-016-0483-z
Keywords Potato (Solanum tuberosum); Commonwealth Potato Collection (CPC); Tuber;
minerals; ICP-MS; Biofortification; Altitude
Public URL https://nottingham-repository.worktribe.com/output/838889
Publisher URL http://link.springer.com/article/10.1007%2Fs10722-016-0483-z
Additional Information The final publication is available at Springer via http://dx.doi.org/10.1007/s10722-016-0483-z
Contract Date Jan 20, 2017

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