摘要
植物对水分胁迫适应性的生理机理已相继在水稻、小麦、玉米、高梁等作物中得以报道。然而，有关这些性状的遗传控制及其在与逆境下作物生产的关系却了解甚少，由此阻碍了抗性遗传改良的进展。随着基因定位、基因组图谱、基因转移等分子生物学技术的发展，对植物抗逆性状进行分子剖析成为可能。本文综述了主要禾谷类作物对水分胁迫的抗性生理及遗传研究上的最新进展，讨论了植物抗性遗传改良的发展前景。
Several physiological mechanisms affecting water stress adaption in plants including rice, wheat, corn, and sorghum have been reported. However, little information regarding the genetic control of these traits and their relationships with plant productivity in stress environments is available. This situation has made it difficult to make progress in genetic improvement of stress tolerance. Recent advances in gene isolation, gene transfer, and genomic mapping technologies offer new opportunities for the genetic dissection of water stress tolerance traits in plants. Current information on water deficient tolerance and genetic dissection and crop genetic improvement in water stress are discussed.
基金
浙江省自然科学基金
关键词
植物
水分胁迫
分子响应
遗传改良
plants
water stress
molecular response
genetic improvement
