Fig. 4

Gene expression analysis of 32 BLH genes in G. hirsutum at 0, 3, 10, 15 DPA samples. 0 and 3 DPA samples were ovules. 10 and 15 DPA samples were fiber cells. For expression analysis of GhBLH genes at different fiber developmental stages, publicly available gene expression files (0–15 DPA) were obtained from CottonGen (https://www.cottongen.org/). A heat map was created using MEV software (Eisen et al. 1998). The expression levels are indicated by the color bar: red means high and green means low