Fig. 5.

RNA-seq and qRT-PCR analysis of GhWOX genes during different stages of fiber development. a Heat map showing the relative expression levels of the GhWOX genes during different stages of fiber growth based on RNA-seq data. b Expression profiling of the GhWOX13 subfamily genes during cotton fiber development. Gene expression data were obtained from qRT-PCR assays with three independent replicates. The G. hirsutum ubiquitin gene GhUBQ7 was used to normalize the expression of the GhWOX genes