植物子内生生物的任意细菌内定位作为适应其垂直传播的适应
Anna Michalik1, Diego C Franco1,2, Teresa Szklarzewicz1
1Department of Developmental Biology and Morphology of Invertebrates, Institute of Zoology and Biomedical Research, Faculty of Biology, Jagiellonian University, Krakow, Poland.
mSystems
|June 27, 2024
概括
植物的共生体使用一种不寻常的母性传播策略,其中Acetobacteraceae细菌被封闭在女性的Sulcia细胞内. 这种适应,以及古代共生体的基因组变化,揭示了新的昆虫-微生物相互作用和进化.
科学领域:
- 微生物学 微生物学
- 进化生物学 进化生物学
- 昆虫学 昆虫学是一门学科.
背景情况:
- 昆虫内共生体为提供必需营养素的昆虫内共生体而言,跨卵巢传播至关重要.
- 并非所有的内共生体都能独立地在宿主组织中导航,到达卵子细胞进行传播.
研究的目的:
- 为了研究植物跳Trypetimorpha occidentalis中的一个不寻常的内生生体传播策略.
- 分析内共生体的基因组特征及其对宿主-共生体相互作用的影响.
主要方法:
- 植物组织的显微镜检查,以观察内共生体的局部化.
- 对内共生生物的基因组分析,以了解它们的进化历史和功能.
- 在雄性和雌性植物跳中对共生物定位的比较分析.
主要成果:
- 在雌性植物中,Acetobacteraceae内生共生体在Sulcia内生共生体细胞中传播,这是一种新的母性传播策略.
- 在男性中,Acetobacteraceae殖民细菌细胞,但仍然没有被包裹,这表明性别特异性适应.
- 基因组分析揭示了Acetobacteraceae的水平传播和营养益处潜力,以及Sulcia和Vidania等古代共生体的显著基因组侵蚀.
结论:
- 在T. occidentalis中独特的内生生态本地化是对母性传播的专门适应.
- 古代共生体的基因组可塑性支了多方昆虫共生体的进化.
- 这项研究扩大了对昆虫微生物共生中的各种策略及其进化后果的理解.
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