Figure 2.

Up-regulated and down-regulated differentially accumulated metabolites (DAMs) in rice grains among three varieties under different photoperiods. (A) Volcano plot of DAMs in HHZ rice grains. (B) Volcano plot of DAMs in KY131 rice grains. (C) Volcano plot of DAMs in KSR rice grains. DAMs within three kinds of rice grains under varying photoperiods were screened using the criteria VIP ≥ 1, p value < 0.05, and absolute value of |log₂FC| ≥ 1. The red circular dots represent up-regulated DAMs, the blue circular dots represent down-regulated DAMs, and the grey circular dots represent metabolites with insignificant differences.