Fig. 1. Adaptive divergence to flood and drought in A. thaliana accessions Sichuan and Tibet.

(A and B) Representative seedlings and survival of Sichuan and Tibet accessions after 64 hours of dark/submergence and 5-day recovery (A), or without watering for 21 days, followed by 5-day rewatering (B), showing contrasting opposite tolerance to flooding and drought between Sichuan and Tibet accession. Data are means ± SE (n = 5 repeats). **P < 0.01 (Student’s t test). Scale bars, 2 cm.