Fig. 1.

Flowchart of the analyses described in this paper. Based on their relative expression levels (red, higher expression; blue, lower expression), paralogous pairs were grouped into those having similar (red box; log₂-ratio < 1.25) or differential (log₂-ratio ≥ 7) expression. Differentially expressed paralogs were further grouped into “higher expression” (black box) or “lower expression” (gray box). Conserved non-coding A. thaliana sequences reported in three published studies were analyzed for their presence at paralogous gene pairs