Most eukaryotic genes are interrupted by one or more introns, and only prokaryotic genomes are composed of mainly single-exon genes without introns. Due to the absence of introns, intronless genes in eukaryotes have become important materials for comparative genomics and evolutionary biology. There is currently no cohesive database that collects intronless genes in plants into a single database, although many databases on exons and introns exist. In this study, we constructed the Rosaceae Intronless Genes Database (RIGD), a user-friendly web interface to explore and collect information on intronless genes from different plants. Six Rosaceae species, Pyrus bretschneideri, Pyrus communis, Malus domestica, Prunus persica, Prunus mume, and Fragaria vesca, are included in the current release of the RIGD. Sequence data and gene annotation were collected from different databases and integrated. The main purpose of this study is to provide gene sequence data. In addition, attribute analysis, functional annotations, subcellular localization prediction, and GO analysis are reported. The RIGD allows users to browse, search, and download data with ease. Blast and comparative analyses are also provided through this online database, which is available at http://www.rigdb.cn/.

大多数真核基因被一个或多个内含子打断，只有原核基因组主要由单外显子基因组成，而没有内含子。由于缺乏内含子，真核生物中的无内含子基因已成为比较基因组学和进化生物学的重要材料。尽管存在许多有关外显子和内含子的数据库，但目前尚没有将植物中无内含子基因收集到一个数据库的内聚数据库。在这项研究中，我们构建了蔷薇科无内含子基因数据库（RIGD），这是一个用户友好的Web界面，用于探索和收集来自不同植物的无内含子基因的信息。六个蔷薇科物种梨（Pyrus bretschneideri），梨（Pyrus communis）， 家蝇， 樱桃李， 梅花和 草莓，包括在当前版本的RIGD中。从不同的数据库收集序列数据和基因注释并进行整合。这项研究的主要目的是提供基因序列数据。此外，还报告了属性分析，功能注释，亚细胞定位预测和GO分析。RIGD使用户可以轻松浏览，搜索和下载数据。通过该在线数据库还提供了爆炸和比较分析，可从以下网站获得http://www.rigdb.cn/。