Figure 2. Abundance of differentially expressed miRNAs between
cold-stress and normal conditions.
(A) qRT-PCR analysis of seven differentially expressed miRNAs
in B_V0 and B_V7 libraries. (B) Relative abundance of three
differentially expressed miRNAs under normal condition and cold
condition detected by northern blotting. (C) Relative abundance
of miR1885 in leaf (top) and SAM (bottom) of B. rapa plants after
cold treatment for 0, 7, 14, 21 and 28 days, respectively. SAM: shoot
apical meristem. “D” represents days. Error bar represents mean ± SE;n = 3. U6 was used as the endogenous reference gene in
expression analyses. * indicates P < 0.05; ** indicatesP < 0.01; Student’s t -test.