摘要
Cold stress is a major environmental factor influencing crop yield,quality,and geographic distribution.With the increasing frequency of extreme weather events globally,the challenges to food security posed by cold are becoming more urgent(Lesk et al.,2016).A key strategy to mitigate cold damage is to deepen our understanding of the molecular mechanisms underlying plant responses to low temperatures,identify critical cold-tolerant genes,and then precisely breed coldtolerant varieties through molecular design.As the world’s most important staple crop,maize is native to tropical and subtropical regions and is highly sensitive to cold stress(Allen and Ort,2001).
基金
supported by the National Natural Science Foundation of China(32170620).
