Integrated transcriptomic and metabolomic analyses of Caucasian clover (Trifolium ambiguum Bieb.) in response to freezing stress - Dan Mou; Zongren Li; Wenhui Liu; Guoling Liang; Zhifeng Jia; Hongyan Yu; Jiuluan Wang; Weiyou Ou; Kai Liu; Xixi Yao; Yu Zhan; Geliang Ma; et al. (Brazilian Journal of Botany, 2022)