NtWHY1 negatively regulates tobacco cold tolerance via interfering with flavonoid biosynthesis - Zhen Gao; Qingxia Zheng; Leyu Zhang; Xiao Wei; Tianshu Kou; Hui Zhang; Guoyun Xu; Hongxiang Tan; Xiaokun Guo; Huina Zhou; Yuntao Fan; Niu Zhai (Plant Cell Reports, 2026)