由状植物Myrionecta rubra保留转录活跃的加密植物核
Matthew D Johnson1, David Oldach, Charles F Delwiche
1University of Maryland Center for Environmental Science, Horn Point Laboratory, Cambridge, Maryland 21613, USA. johnson@marine.rutgers.edu
Nature
|January 26, 2007
概括
海洋状动物Myrionecta rubra窃取并保留功能密码体核长达30天. 这种"karyoklepty"策略使得状细胞能够保持塑性质并获得生物化学潜力.
科学领域:
- 海洋生物学 海洋生物学
- 亲生组织学 亲生组织学 亲生组织学
- 进化生物学是进化的生物学.
背景情况:
- 捕食者对有机细胞的捕捉是已知的,但通常是有限的和短暂的.
- 海洋光合作用状动物Myrionecta rubra捕获了密码植物器官,这引发了关于共生与临时保留的疑问.
- 之前的研究表明,M. rubra从Geminigera cryophila中窃取塑体和猎物核.
研究的目的:
- 研究Myrionecta rubra.中的加密植物核的保留时间和功能.
- 为了确定被隔离的核是否积极支持被盗的塑性质.
- 了解核隔离的进化影响.
主要方法:
- 追踪M. rubra.中被隔离的加密植物核的保留和转录活动.
- 分析与塑功能相关的加密植物核编码基因的表达.
- 观察核损失对塑维护和复制的影响.
主要成果:
- 密码植物核在M. rubra中保留长达30天,并且在转录方面是活跃的.
- 这些核支持来自多个猎物细胞的塑体.
- 隔离核的损失与塑相关基因的表达下降和塑功能受损有关.
- 持续的核盗窃对于M. rubra的塑维护和复制是必不可少的.
结论:
- Myrionecta rubra采用"karyoklepty",这是一个新的策略,用于窃取和保留功能性核.
- 这种核结合对于维持塑功能和使塑复制成为可能至关重要.
- 卡里奥克莱普蒂代表了一条独特的进化途径,用于获得必要的生化能力.
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