完全异质植物中的细胞核进化:生活方式和基因功能决定了场景
Xuelian Guo1, Hanchen Wang1, Dongliang Lin1
1State Key Laboratory of Plant Diversity and Specialty Crops & Key Laboratory of Systematic and Evolutionary Botany, Institute of Botany, Chinese Academy of Sciences (IBCAS), Beijing, 100093, China.
BMC plant biology
|October 20, 2024
概括
核补偿进化驱动异质植物中的线粒核相互作用. 塑体中的基因损失与异质变异相关,而核基因适应维持基本功能.
科学领域:
- 植物基因组学 植物基因组学
- 进化生物学是进化的生物学.
- 分子进化的分子进化.
背景情况:
- 异质植物表现出减少的细胞器基因组和改变的线粒体进化.
- 这些植物中细胞核共同进化的机制在很大程度上是未知的.
- 萨普里亚喜马拉雅 (内寄生虫) 和菌异质性胃/平坦为研究细胞核进化提供了模型.
研究的目的:
- 研究异质植物中细胞核相互作用的进化驱动因素.
- 专注于核编码的塑/线粒体 (N-pt/mt) 向蛋白质复合体.
- 分析氨酸蛋白酶 (ClpP),RuBisCo,OXPHOS,DNA-RRR和PPR蛋白质. 这些蛋白质的分离方法是:
主要方法:
- 在N-pt PPR和pt-RRR基因中评估基因损失相对于异质.
- 在蛋白质复合体中评估了有机细胞和核基因的替代率.
- 在内寄生虫和菌异质植物中比较细胞核进化.
主要成果:
- 在N-pt PPR和pt-RRR基因中的基因损失与异质性增加相关.
- N-mt PPR和mt-RRR基因显示保留.
- 在S. himalayana中观察到细胞核共同进化;在OXPHOS复合体中不成比例的进化.
结论:
- 在塑和核编码蛋白质复合体中发现的核补偿进化.
- 诸如代偏好,功能约束和基因调节等因素促进了线粒核进化.
- 这项研究增强了对完全异质植物的基因组共同进化的理解.
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