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. 2017 Sep 28;8:1694. doi: 10.3389/fpls.2017.01694

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Copyright © 2017 Wang, Hong, Hu, Wang, Wang, Du, Li, Hu, Cheng, An and Li.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Photoperiod-dependent chlorophyll synthesis in ygl18 leaves. (A) Leaf phenotypes of the 12-day-old wild-type and ygl18 seedlings under short-day (8 h), long-day (14 h) and continuous (24 h) light conditions. (B) Chlorophyll contents of plant leaves in (A). FW, fresh weight. (C) Chlorophyll a/b ratio of the plant leaves in (A). In (B,C), data represent the mean ± SD of four biological replicates (one-way ANOVA analysis). (D–G) Daily expression patterns of YGL18 in the wild-type and ygl18 seedling leaves under the short-day (D,F, 8 h light: 9:00 to 17:00.) and the long-day conditions (E,G, 14 h light: 6:00 to 20:00.). Leaf samples were harvested at 3 h intervals. Data represent the mean ± SD of two biological replicates. Different letters indicate values are statistically different based on a one-way ANOVA analysis.