Data from: Different gene families in Arabidopsis thaliana transposed in different epochs and at different frequencies throughout the rosids

Certain types of gene families, such as those encoding most families of transcription factors, maintain their chromosomal syntenic positions throughout Angiosperm evolutionary time. Other, non-syntenic gene families are prone to deletion, tandem duplication, and transposition. Here we describe the chromosomal positional history of all genes in Arabidopsis thaliana (A. thaliana) throughout the rosid superorder. We introduce a public database where researchers can look up the positional history of their favorite A. thaliana gene or gene family. Finally, we show that specific gene families transposed at specific points in evolutionary time, particularly after whole-genome duplication events in the Brassicales, and suggest that genes in mobile gene families are under different selection pressure than syntenic genes.部分基因家族——例如编码绝大多数转录因子（transcription factors）家族的基因家族——在被子植物（Angiosperm）的演化历程中始终维持其染色体共线性位置（chromosomal syntenic positions）。其余非共线性基因家族（non-syntenic gene families）则易于发生缺失（deletion）、串联重复（tandem duplication）与转座（transposition）事件。本研究阐述了蔷薇超目（rosid superorder）演化全程中，拟南芥（Arabidopsis thaliana，下文简称A. thaliana）所有基因的染色体位置演化历史。我们搭建了一个公开数据库（public database），供科研人员查询任意目标拟南芥基因或基因家族的位置演化历史。最后，我们证实特定基因家族会在演化历程中的特定节点发生转座，尤其是在十字花目（Brassicales）全基因组复制（whole-genome duplication）事件之后；并提出可移动基因家族（mobile gene families）中的基因与共线性基因所受的选择压力（selection pressure）存在差异。