Proceedings of the Korean Society of Crop Science Conference (한국작물학회:학술대회논문집)
- 2017.06a
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- Pages.31-31
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- 2017
Contrasting rice sub-populations to tocols ratio associated with seed longevity
- Lee, Jae-Sung (T.T. Chang Genetic Resources Center, International Rice Research Institute) ;
- Kwak, Jieun (National Institute of Crop Science, Rural Development Administration) ;
- Yoon, Mi-Ra (National Institute of Crop Science, Rural Development Administration) ;
- Lee, Jeom-Sig (National Institute of Crop Science, Rural Development Administration) ;
- Hay, Fiona R. (T.T. Chang Genetic Resources Center, International Rice Research Institute)
- Published : 2017.06.04
Abstract
Understanding the mechanism(s) to overcome or prevent seed ageing deterioration during storage is of fundamental interest to seed physiologists. Vitamin E (tocols) is known as a key metabolite to efficiently scavenge lipid peroxy radicals which cause membrane breakdown resulting in seed ageing. However, in rice research this hypothesis has been tested for very few lines only without considering intraspecific variation in genomic structure. Here, we present a correlation study between tocols and seed longevity using a diverse rice panel. Seeds of 20 rice accessions held in the International Rice Genebank at the International Rice Research Institute, representing aus, indica, temperate japonica and tropical japonica subpopulations, were used for tocols analysis (quantification of