AMS-dependent or -independent regulatory model during anther development. Genes with differential expression in the ams mutant is divided into eight groups A-H (plus represents for higher expression in mutant compared with wild-type and minus for lower). Negative regulation is shown by a T-bar and positive by an arrow, and stronger impact is shown by a thicker T-bar or arrow.
Ma et al. BMC Plant Biology 2012 12:23 doi:10.1186/1471-2229-12-23