土地盐渍化是日益加剧的环境问题之一,全球范围内近20%的灌溉耕地正受到土壤盐渍化的影响,受影响的土地比例仍在不断增加。土壤盐渍化影响着作物生长,导致作物减产、经济效益降低等一系列问题。然而,许多植物可以通过调节基因表达来适应盐渍环境。mRNA选择性多聚腺苷化(alternativepolyadenylation,缩写APA)作为植物基因表达转录后调控的一种方式,可增加转录的多样性、影响mRNA的稳定性和翻译过程,对植物适应环境具有重要的调控作用。但是,目前APA在植物盐胁迫过程中的作用还没有被系统地研究。本研究中通过对甜土植物(glycophyte)拟南芥(Arabidopsisthalian...Soil salinization is one of the worsening environmental problems in the world, with nearly 20% of the farmland being affected. It can affect crop growth, reduce crop productions and economic benefits. To adapt to salinity environment, some plants can tolerante salinity condition through gene expression regulation. Alternative polyadenylation (APA) is emerging as a way used to control gene expressi...学位:理学硕士院系专业:环境与生态学院_生态学学号:3312014115165