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. 2021 Feb 23;26(4):1181. doi: 10.3390/molecules26041181

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© 2021 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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Volcano plots of different metabolites among litchi cultivars. Note: (A) BTY vs. FZX (B) FC vs. FZX (C) YJQ vs. FZX (D) BYL vs. FZX. Each point in the figure represents a metabolite; the abscissa represents the logarithm value of the multiple of quantitative difference of a metabolite in two samples, and the ordinate represents the VIP value. Fold change ≥2 indicates that the difference is up-regulated, and fold change ≤0.5 indicates that the difference is down-regulated. The green dot represents the down-regulated differential metabolite; the red dot represents the up-regulated differential metabolite, and the gray dots represent detected but insignificant metabolites.