Figure 3.

Preliminary RT-qPCR analysis on developing Li₂ mutant and WT fibers. Genes more abundantly transcribed during the fiber elongation stage in normal WT tetraploid cotton fibers: (A) G. hirsutum α-expansin1 (GhExp1) and G. hirsutum Cu/Zn superoxide dismutase1 (GhCSD1). Genes more abundantly transcribed during the fiber SCW stage in normal WT tetraploid cotton fibers: (B) G. hirsutum cellulose synthase2 (GhCesA2) and G. hirsutum β-1, 3-glucanase-like gene. Genbank accession numbers are shown in parentheses on the graph titles for each gene. The DPA time-points that revealed a significant (≥ 2-fold; p-value < 0.05) difference in transcript abundance are indicated by an asterisk and the fold-change in transcript abundance is shown on the graphs above each indicated time-point. Error bars indicate the standard deviation from three biological replicates.