Identification of a Novel snoRNA Gene in Arabidopsis thaliana L.

拟南芥中1个新snoRNA基因的鉴定

[ Objective] To identify a novel snoRNA gene in Arabidopsis thalianan. [ Method ] Genome sequence of Arabidopsis thalianan was screened by using bioinformatics methods, and the sequence structure, organization form and function of typical candidate gene were analyzed. [ Result] The identified snR95 box H/ACA snoRNA had conservative component and structural features of box C/D snoRNA family, possessed two more than 10 nt long rRNA antisense elements. The result revealed that the novel snoRNA is a partial counterpart of the rice Z270, named box C/D snoRNA -AthZ270. [ Conclusion ] Z270 snoRNA in Arabidopsis thalianan has different function with common snoRNA.

核仁小分子RNA（snoRNA）分为box C／DsnoRN A，boxH／ACA snoRNA和MRPRNA3类，前2类以数量繁多，基因组织形式复杂，功能多样而成为snoRNA的主要研究对象。笔者综合运用生物信息学方法，在拟南芥基因组中发现了一个新的box C／DsnoRNA．AthZ270，对其序列结构、基因组织形式和功能进行了分析。