Figure 1. Number of genes differentially expressed during fiber development within and between wild and domesticated cottons.

Left: Representative images of individual seeds with attached fiber are presented for domesticated (top) and wild (bottom) accessions. Right: Number of differentially expressed genes in developing cotton fiber within and between wild and domesticated cottons (RPKM≧1, FDR<0.05, fold-change≧1.5). For example, between two developmental stages within domesticated cottons, 362 genes were up-regulated at 10 dpa, whereas 762 genes were more highly expressed at 20 dpa. Similarly, between wild and domesticated cottons at 10 dpa, 1,844 genes were up-regulated in domesticated cottons, while 1,737 genes were more highly expressed in wild cottons.