Fig. 4

First nucleotide bias of length classes of Camellia sinensis novel miRNAs under drought stress conditions. Drought stress conditions were as follows: a normal water supply, CK; b mild drought stress, T1; c moderate drought stress, T2; and d severe drought stress, T3. Brown, green, red, and blue correspond to guanine (G), cytosine (C), adenosine (A), and uracil (U), respectively