在类属Cacopsyllaylla中,强制性内共生的进化动态
Erika Corretto1, Liliya Štarhová Serbina2,3, Jessica Dittmer2,4
1Competence Centre for Plant Health, Free University of Bozen-Bolzano, Bolzano, Italy. erika.corretto@unibz.it.
Communications biology
|November 6, 2025
概括
昆虫内共生体,如卡森氏菌,对于植物养昆虫至关重要. 这项研究揭示了Cacopsylla psyllids中的动态共生关系,表明细菌收购驱动了昆虫的进化和适应.
科学领域:
- * 微生物学 微生物学
- * 进化生物学 进化生物学
- * 昆虫与宿主之间的交互
背景情况:
- * 吸的半角动物依赖于有义务的,可遗传的共生细菌来补充其缺乏营养的饮食.
- * 共生生物的多样性从古老的初级共生生物到获得的二级共生生物,提供适应性优势.
研究的目的:
- * 调查类属Cacopsylla中的多种内共生生物的多样性和进化动态.
- * 了解共生体获取和替代在昆虫适应中的作用.
主要方法:
- * 生物基因组分析被用来追踪共生动物及其宿主的进化历史.
- *研究了各种Cacopsylla物种中的细菌共生物种多样性.
主要成果:
- *主要的共生生物Carsonella在分析的Cacopsylla物种中普遍存在.
- * 赛洛菲拉 (Psyllophila) 是一个古老的共同主要共生生物,在Cacopsylla pyrisuga中缺席,而Cacopsylla pyrisuga则是拥有更大基因组的Sodalis共生生物的宿主.
- * 遗传学数据表明卡森拉和Psyllophila与宿主的共同分歧,而Sodalis则显示了在psyllid血统中多个独立的收购.
- *还确定了可选的Sodalis和Serratia共生体,强调了动态的宿主-共生体关联.
结论:
- *这项研究突出了psyllids内共生关系的动态性质,涉及共和共生者的独立收购.
- *获取多样化的共生体,包括Sodalis和Serratia,在昆虫适应和进化轨迹中起着关键作用.
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