How histone modifications are reprogrammed through germline development in plants is poorly understood. We found that H3K27me3 and H3K4me3 are extensively reprogrammed throughout the development of Arabidopsis male gametophyte. This reprogramming leads to widespread chromatin bivalency and selective removal of H3K27me3 marks from key developmental regulators in sperm.

中文翻译：

---

植物精子中普遍存在的假定染色质二价性和 H3K27me3 的部分重置

人们对组蛋白修饰如何通过植物种系发育进行重新编程知之甚少。我们发现 H3K27me3 和 H3K4me3 在拟南芥雄性配子体的整个发育过程中被广泛重编程。这种重新编程导致广泛的染色质二价性和选择性地从精子中的关键发育调节因子中去除 H3K27me3 标记。