The growth of the vascular meristem is negatively regulated by CLV1 in Arabidopsis

Map-based cloning of a regulator of the vascular cambium in Arabidopsis thaliana

“…For this reason, it was hypothesized that down-regulation of C L V 1 expression would result in a larger SAM and a corresponding larger VC that differentiated to yield more secondary xylem. This was demonstrated to be correct; the transgenic clv1 plants produced 50% more secondary xylem than their wild type counterparts (Han, 2004).…”