Table 1 Summary of the number of isoforms exhibiting cis and/or trans regulatory divergence between IR64 and Apo under non- and water-stress conditions. χ2 statistics (with P-values; test for 2 × 2 contingency or two independent proportions with Yates’ continuity correction) indicates the significant difference of the number of isoforms classified in each regulatory category between the two treatments.

From: Unraveling regulatory divergence, heterotic malleability, and allelic imbalance switching in rice due to drought stress

Regulatory factors/interactions

Non-stress

No. of genes (%)

Water-stress

No. of genes (%)

χ2 statistics

(P-value)

cis

415 (11.2)

456 (12.6)

3.19 (0.074)

cis + trans (synergistic)

75 (2.0)

194 (5.4)

56.45 (< 0.001)

cis × trans (antagonistic)

135 (3.6)

118 (3.3)

0.72 (0.397)

compensatory

187 (5.1)

188 (5.2)

0.05 (0.828)

trans

328 (8.9)

551 (15.2)

69.34 (< 0.001)

Ambiguous

696 (18.8)

752 (20.7)

4.315 (0.038)

Conserved

1869 (50.4)

1366 (37.7)

120.529 (< 0.001)

Total

3705

3626