植物ta-siRNA合成作用级联研究进展  

Advances in Biosynthesis and Regulatory Cascades of Plant ta-siRNA

作　　者：张长青[1] 李海玲[1] 李广平[2] 

机构地区：[1]金陵科技学院园艺学院,南京210038 [2]南京林业大学林学院,南京210037

出　　处：《西北植物学报》2014年第12期2576-2582,共7页Acta Botanica Boreali-Occidentalia Sinica

基　　金：国家自然科学基金(31171273);江苏省333人才工程项目;江苏省自然科学基金(BK2010019)

摘　　要：ta-siRNA是一类长21nt的内源非编码小RNA,其合成作用级联参与了植物童期向生殖期的转换、逆境适应、TAS甲基化修饰、花叶等侧生器官背腹性发育等重要生物过程。该文对近年来有关植物ta-siRNA合成作用级联的发现、功能、类型和识别等研究进展进行综述,同时分析了目前存在的问题和不足,并展望了未来的研究方向,以期对ta-siRNA合成作用级联的研究和利用提供参考。ta-siRNA is a class of 21 nt endogenous non-coding small RNA. Its regulatory cascades have been identified as important elements in gene networks involved in the plant phase transition of juvenile-to-a- dult,development of adaxial-abaxial leaf/flower, and response to biotic and abiotic stresses, and DNA methylation at the TAS locus. In this paper,we reviewed the advances of ta-siRNA regulatory cascades,inclu- ding its discovery, function, types and identification, and also discussed its present problems and furture re- search prospects. We hope the review could provide a useful reference for ta-siRNA research and utilization.

关 键 词：ta-siRNA MIRNA 调控级联 

分 类 号：Q753[生物学—分子生物学] Q789