Physcomitrella patens is a bryophyte model plant that is often used to study plant evolution and development. Its resources are of great importance for comparative genomics and evo-devo approaches. However, expression data from Physcomitrella patens were so far generated using different gene annotation versions and three different platforms: CombiMatrix and NimbleGen expression microarrays and RNA sequencing. The currently available P. patens expression data are distributed across three tools with different visualization methods to access the data. Here, we introduce an interactive expression atlas, Physcomitrella Expression Atlas Tool (PEATmoss), that unifies publicly available expression data for P. patens and provides multiple visualization methods to query the data in a single web-based tool. Moreover, PEATmoss includes 35 expression experiments not previously available in any other expression atlas. To facilitate gene expression queries across different gene annotation versions, and to access P. patens annotations and related resources, a lookup database and web tool linked to PEATmoss was implemented. PEATmoss can be accessed at https://peatmoss.online.uni-marburg.de.

中文翻译：

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PEATmoss（Physcomitrella表达图集工具）：用于模型植物Physcomitrella patens的统一基因表达图集。

Physcomitrella patens是苔藓植物模型植物，通常用于研究植物的进化和发育。它的资源对于比较基因组学和evo-devo方法非常重要。但是，到目前为止，来自Physcomitrella patens的表达数据是使用不同的基因注释版本和三个不同的平台生成的：CombiMatrix和NimbleGen表达微阵列以及RNA测序。当前可用的P. patens表达数据分布在具有不同可视化方法的三个工具中，以访问数据。在这里，我们介绍了一个交互式表达地图集，即Physcomitrella表达地图集工具（PEATmoss），该工具统一了P. patens的公共可用表达数据，并提供了多种可视化方法来在一个基于Web的工具中查询数据。而且，PEATmoss包括35个表达实验，这些实验以前没有任何其他表达图集可用。为了方便跨不同基因注释版本的基因表达查询，以及访问P. patens注释和相关资源，实现了与PEATmoss链接的查找数据库和Web工具。可以在https://peatmoss.online.uni-marburg.de上访问PEATmoss。