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Identification of Potential Metabolic Markers for the Selection of a High-Yield Clone of Quercus acutissima in Clonal Seed Orchard

Division of Forest Tree Improvement, National Institute of Forest Science, Suwon 16631, Gyeonggi, Korea
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Author to whom correspondence should be addressed.
These authors contributed equally to this work.
Forests 2018, 9(3), 116; https://doi.org/10.3390/f9030116
Received: 10 January 2018 / Revised: 26 February 2018 / Accepted: 1 March 2018 / Published: 3 March 2018
(This article belongs to the Section Forest Ecophysiology and Biology)
Quercus acutissima Carruth. is one of the most economically important deciduous tree species in Korea. The acorns of Q. acutissima are used for both food and medicinal purposes in Korea and China. In this study, we analyzed plant hormones and metabolite profiles to identify their correlation with the yield production of Q. acutissima. The contents of sucrose and inositol in the leaves of high-yield clones were significantly higher (p < 0.05) than those of low-yield clones. In addition, high-yield clones have a higher content of phosphoric acid, succinic acid, malic acid, and butane-1,3-diol in stems compared with low-yield clones. Among the identified metabolites, zeatin-9-glucoside showed highly significant negative correlations with tree height, crown volume, and acorn production. It is considered that these metabolites could be useful metabolic markers for the selection of a high yield clone of Q. acutissima. View Full-Text
Keywords: acorn; clonal seed orchard; high-yield clone; metabolites; metabolic marker; oak; hormones; quercus; sawtooth oak; zeatin-9-glucoside(Z9G) acorn; clonal seed orchard; high-yield clone; metabolites; metabolic marker; oak; hormones; quercus; sawtooth oak; zeatin-9-glucoside(Z9G)
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Kang, J.W.; Lee, H.; Lim, H.; Lee, W.Y. Identification of Potential Metabolic Markers for the Selection of a High-Yield Clone of Quercus acutissima in Clonal Seed Orchard. Forests 2018, 9, 116.

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