Figure 3From: Genome-wide analysis reveals rapid and dynamic changes in miRNA and siRNA sequence and expression during ovule and fiber development in allotetraploid cotton (Gossypium hirsutum L.)Differential accumulation of miRNAs in microarray and sequence assays. (a) Hierarchical cluster analysis of miRNA expression variation in leaves (L), fibers (F; +7 DPA) and fiber-bearing ovules (O+; +3 DPA) of TM-1 and ovules without fibers (O-; +3 DPA) of the N1N1 mutant (N1). At, Arabidopsis thaliana; Gm, Glycine max; Mt, Medicago truncatula; Os, Oryza sativa; Pp, Physcomitrella patens; Pt, Populus trichocarpa; Sb, Sorghum bicolor; So, Saccharum officinarum; Zm, Zea mays. Vertical lines indicate similar expression patterns of miRNAs in 'blocks'. (b) Positive correlation of miRNAs between sequencing frequencies and microarray hybridization intensities detected in cotton leaves (R2 = 0.28; P = 0.02; degrees of freedom (df) = 16). (c) Positive correlation of miRNAs between sequencing frequencies and microarray hybridization intensities detected in cotton ovules (+ 3 DPA; R2 = 0.20; P = 0.06; df = 16).Back to article page