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. 2015 Jun 11;10(6):e0129781. doi: 10.1371/journal.pone.0129781

Fig 2. Clock gene expression after light/dark transitions or with exogenous sucrose.

Fig 2

Gene expression, assayed by qRT-PCR, in 5 day old barley seedlings (cv. Sonja) germinated and grown in: (A) constant darkness then shifted to light, (B) constant light then shifted to darkness or (C) constant darkness plus 2% sucrose. RNA was extracted from 3 biological repeats. Average expression is shown relative to ACTIN (Rel. exp.), error bars show standard error. Horizontal axis labels indicate the time (hours) relative to when the first sample was harvested and treatments began.