MAPK信号的VE-1调节控制了Neurospora crassa的性发育
Sara Cea-Sánchez1, Sara Martín-Villanueva1,2, Gabriel Gutiérrez1
1Departamento de Genética, Facultad de Biología, Universidad de Sevilla, Seville, Spain.
mBio
|September 16, 2024
概括
包括VE-1在内的天复合体对于调节Neurospora crassa等真菌的性繁殖至关重要. 它控制基因表达,特别是MAPK通路,影响对光反应的发育.
科学领域:
- 菌类学 菌类学是指菌类学.
- 分子生物学分子生物学
- 遗传学 是一个遗传学.
背景情况:
- 在真菌中的性繁殖增强了适应的遗传多样性.
- 特定于真菌的天复合体集成了环境线索来调节发育.
- VE-1,VE-2和LAE-1形成Neurospora crassa中的天复合体,影响其发育.
研究的目的:
- 研究天复合体的VE-1成分在Neurospora crassa的性发育调节中的作用.
- 了解VE-1如何控制基因转录,特别是MAPK信号通路,以响应光等环境信号.
- 阐明真菌将环境线索融入其繁殖过程中的机制.
主要方法:
- 在不同的光照条件下,对野生型和∆ve-1突变菌株的Neurospora crassa基因表达的比较分析.
- 对费洛蒙反应和细胞壁完整性通路的分析.
- 西部斑点分析检测总和化MAK-1和MAK-2激酶.
- 试验室内DNA结合测试以评估VE-1/VE-2与MAPK基因促进体的结合.
- 删除光传感器基因白领1以评估依赖光的调节.
主要成果:
- 删除VE-1显著改变了成千上万的基因在性发育期间的转录,特别是在光.
- 费洛蒙反应和细胞壁完整性途径在∆ve-1突变体中被降低,MAK-1和MAK-2激酶活性降低.
- VE-1和VE-2直接与mak-1和mak-2的促进体结合,这表明MAPK基因的转录调节.
- 删除白领1消除了对光的依赖性抑制性发育在∆ve-1突变.
结论:
- VE-1/VE-2复合体在Neurospora crassa的性发育的转录调节中发挥着至关重要的作用.
- 通过VE-1/VE-2复合体调节MAPK通路是控制对光反应性发育的关键机制.
- 菌利用像天复合体这样的复合体来整合环境信号,以适应生殖策略.
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