Fig. 8From: Systematic analysis of Histidine photosphoto transfer gene family in cotton and functional characterization in response to salt and around toleranceExpression levels of 6 GhHPs in 20% PEG6000 drought stresses. Error bars represent SD of three independent experiments. The data represent the means _ SE from three independent experiments, t-tests: * p < 0.05, ** p < 0.01Back to article page