Changes in expression of fiber genes for all possible pair-wise comparisons.

<p>Comparisons are contrasted between: A- fiber development dates (10 vs. 22 dpa), B-genotypes (<i>G. hirsutum</i> and <i>G. barbadense</i>, <i>Gh</i> vs. <i>Gb</i>), and C-sub-genomic origin of reads (A sub-genome vs. D sub-genome). Gene expression was assessed digitally according to the origins of reads within contigs. In each pair-wise comparison bar length is proportional to the number of contigs showing differential over-expression (number of contigs also indicated in parentheses). Symbol ‘*’ indicates a statistical difference (P0.05) for each pair-wise comparison using Fisher’s exact test. For example, within the A panel (all comparisons involving 10 vs. 22 dpa), the comparison Gh10_A vs. Gh22_A (164 vs. 102, significantly different) indicates that within <i>G. hirsutum</i>, there are 164 contigs for which the A-tagged reads are more abundant (≥2-fold) at 10 dpa than at 22 dpa; conversely 102 contigs have more abundant representation of A-tagged reads at 22 dpa than at 10 dpa.