Gene expression and chromatin conformation differs between worker bees performing different tasks

文献类型： 外文期刊

第一作者： Fang, Fang

作者： Fang, Fang;Feng, Xiaojuan;Wang, Zhen;Zhao, Shuhong;Li, Xiang;Fang, Fang;Feng, Xiaojuan;Wang, Zhen;Zhao, Shuhong;Li, Xiang;Fang, Fang;Feng, Xiaojuan;Wang, Zhen;Li, Xiang;Zhou, Huanhuan;Chen, Xiasang;Zhao, Shuhong

作者机构：

关键词： Honeybee; Transcriptomic regulation; Open chromatin regions; Behavioral differences

期刊名称：GENOMICS （ 影响因子：4.31； 五年影响因子：4.38 ）

ISSN： 0888-7543

年卷期： 2022 年 114 卷 3 期

页码：

收录情况： SCI

摘要： Background: Revealing the effect of transcriptomic regulation on behavioral differences is a fundamental goal in biology, but the relationship between gene regulatory networks and individual behavior differences remains largely unknown. Honey bees are considered as good models for studying the mechanisms underlying gene expression changes and behavioral differences since they exhibit strong and obvious differences in tasks between individuals. The cis-regulatory regions usually contain the binding sites of diverse transcription factor (TFs) influencing bee behavior. Thus, the identification of cis-regulatory elements in the brains across different behavioral states is important for understanding how genomic and transcriptomic variations affect different tasks in honeybees. Methods: In this study, we employed transcriptome and genome-wide chromatin accessibility assays to analyze brain tissues of honey bees in different behavioral states for examining the relationship between individual behavior differences and brain gene expression changes. We also used the obtained open chromatin regions to identify cis-motifs associating differentially expressed TFs and genes in order to reveal the transcriptional regulatory mechanism related to the different tasks. Results: We identified genetic regulatory modules regulating different tasks that contained key TFs (CTCF, Trl and schlank) associated with open chromatin regions enriched for DNA sequence motifs belonging to the family of the corresponding TFs. The most prominent transcriptomic changes, which correlated with chromatin accessibility modifications within their proximal promoter regions, occurred in nervous system development, and were associated with behavior switch. Conclusions: Our results revealed the regulatory landscape among three behavioral stages in honeybees and identified interactive molecular networks regulating different tasks. These results provide a comprehensive insight into behavioral differences of honeybees, which offers reference for future study.

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