Abstract Drought tolerance is a complex trait and being a yield limiting factor has become a significant threat to global food security. The complexity has limited the development of drought tolerant wheat cultivars by classical breeding. In recent years, molecular markers associated with genes for drought signaling pathways have been reported. Marker assisted selection (MAS) and genetic transformation of wheat with different genes/transcription factors have been used to improve drought tolerance. Notably, emergence of “Omics” techniques including transcriptomics and proteomics have helped to identify and characterize genes involved in drought tolerance. Together, all these efforts have helped us to improve our understanding of the complex drought tolerance mechanism(s). Here, we have reviewed the different approaches for improvement of drought tolerance in wheat including MAS, QTL mapping, transgenic development, genome editing, and the application of “Omics” technologies.

中文翻译：

---

“组学”对提高小麦耐旱性的影响

摘要 耐旱性是一个复杂的性状，作为产量限制因素已成为全球粮食安全的重大威胁。这种复杂性限制了通过经典育种开发耐旱小麦品种。近年来，已经报道了与干旱信号通路基因相关的分子标记。具有不同基因/转录因子的小麦的标记辅助选择 (MAS) 和遗传转化已被用于提高耐旱性。值得注意的是，包括转录组学和蛋白质组学在内的“组学”技术的出现有助于识别和表征与耐旱性相关的基因。总之，所有这些努力帮助我们提高了对复杂的耐旱机制的理解。这里，