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通过小分子抑制剂的素乙化调节,重复了共生体诱导的细胞质不相容性

Rupinder Kaur¹, Mahip Kalra², Madangchanok Imchen³

¹Pennsylvania State University, Departments of Biology and Entomology, University Park, PA, USA; Pennsylvania State University, One Health Microbiome Center, Huck Institutes of the Life Sciences, University Park, PA, USA; Vanderbilt University, Department of Biological Sciences, Nashville, TN, USA.

|October 9, 2025

概括

科学家们发现了一种宿主内在的机制,它模仿了没有微生物的沃尔巴基亚诱导的细胞质不相容性 (CI). 通过改变精子中的组素乙化,他们诱导了可挽救的CI表型,为载体控制提供了新的途径.

科学领域:

微生物学和遗传学微生物学和遗传学
关节动物-宿主共生关系
进化生物学是进化的生物学.

背景情况:

节肢动物和微生物之间的共生关系对于宿主生态,进化和载体控制至关重要.
在机械地定义和重构共生特征,而不依赖于微生物存在方面存在重大知识差距.

研究的目的:

识别和描述一个宿主内在的机制,该机制重新总结了沃尔巴基亚诱导的细胞质不相容性 (CI).
探索素乙化在精子发育中的作用及其在没有共生体的情况下诱导CI的潜力.

主要方法:

研究了Wolbachia在Drosophila melanogaster的精子发育过程中对基因素乙化的影响.
在非共生性 (无微生物) 雄性中,化学抑制了基因酸转移酶 (HAT) 活性.
利用转基因敲除HAT和基因素脱乙酶来调节CI强度.

主要成果:

沃尔巴基亚菌感染会改变正在发育的精子中的组素乙化模式.
在无微生物的男性中抑制HAT活性成功地重新编程了精子染色素,诱导了可挽救的CI表型.
转基因调节HAT和基因素脱乙酶活性允许对CI强度进行可调节的控制.

结论:

希斯乙化代表了一个关键的宿主内在途径,能够诱导共生体独立的CI.
这一发现为基础研究和用于载体控制的战略开辟了新的途径,独立于微生物操纵.

关键词:

CP: 发育生物学科普:分子生物学分子生物学德洛索菲拉的精子发生.沃尔巴基亚的共生方式无心酸是什么无心酸是什么细胞质不相容性细胞质不相容性基因素乙化基因素乙化基因素乙化精子的产生是精子的产生.

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