基因型特异性相互作用的模式在强制性宿主特异性昆虫病原性真菌中的模式
Sam Edwards1,2, Andreas Naundrup1, Paul G Becher3
1Department of Plant and Environmental Sciences, University of Copenhagen, Thorvaldsensvej 40, Frederiksberg C. 1871, Denmark.
Journal of evolutionary biology
|December 13, 2024
概括
基因型对基因型的相互作用会影响中的Entomophthora muscae感染. 这项研究证实了这些模式在有义务的昆虫真菌病原体中,影响宿主-病原体的共同进化.
科学领域:
- 菌群学 菌群学是指菌群学的学科.
- 昆虫病理学 昆虫病理学
- 进化生物学 进化生物学
背景情况:
- 宿主-病原体相互作用是由遗传兼容性塑造的.
- 在植物病原体中已知基因型对基因型 (GxG) 相互作用.
- 它们在昆虫真菌病原体中的存在仍然在很大程度上未被探索.
研究的目的:
- 为了研究受义务昆虫病原菌 Entomophthora muscae 的基因型对基因型 (GxG) 相互作用.
- 为了确定E. muscae是否与不同的宿主表现出GxG相互作用.
- 分析E. muscae从各种宿主中分离出来的植物遗传关系.
主要方法:
- 从Drosophila物种中收集了三个新的E. muscae分离物.
- 对E. muscae分离物进行了遗传学分析.
- 使用E. muscae分离物和各种基因型 (家,Drosophila melanogaster,Drosophila suzukii) 进行了交叉感染实验.
- 评估了真菌毒性,宿主死亡率和胞.
主要成果:
- 德洛索菲拉分离的E. muscae形成了一个独特的家族遗传系.
- 所有E. muscae分离物感染并在所有测试的宿主上分泌.
- 在真菌分离物和宿主基因型之间观察到病毒性和死亡率的显著差异,证实了GxG相互作用.
- 室内的易感性最高 (99%的死亡率),而Drosophila物种的死亡率较低.
结论:
- 菌病原体 (E. muscae) 和宿主的遗传构成显著影响感染结果.
- 在强制性菌病原体中证实了GxG相互作用.
- 这些发现有助于理解昆虫及其真菌病原体之间的共同进化动态.
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