水稻是世界上最重要的粮食作物之一,也是单子叶模式植物.随着高通量测序技术的发展和测序成本的下降,围绕水稻生长发育过程的转录组已有不少研究,然而对于相关基因的转录后调控了解却非常少.选择性多聚腺苷化(alternative polyadenylation,APA)作为一种重要的信使RNA转录后调控方式,广泛存在于真核生物中[1],对转录本的编码功能、稳定性、可翻译性等产生重要的影响.因此,在全基因组范围内对水稻不同发育时期、不同组织的poly(A)位点轮廓进行研究具有重要意义. Rice is one of the most important food crops in the world and also a monocot modeled plant.With the development of high-throughput sequencing technology and the reduction of sequencing cost, there have been many researches on transcriptomes around the process of rice growth and development, however, Although there is little understanding of the post-transcriptional regulation of genes, alternative polyadenylation (APA), an important post-transcriptional regulation of messenger RNA, exists widely in eukaryotes [1] Coding, stability, translatability, etc. Therefore, it is important to study the poly (A) site profile of different tissues at different developmental stages in rice genome-wide.