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Horizontal transfer of facultative endosymbionts is limited by host relatedness

文献类型： 外文期刊

作者： Lukasik, Piotr 1 ; Guo, Huifang 1 ; van Asch, Margriet 1 ; Henry, Lee M. 1 ; Godfray, H. Charles J. 1 ; Ferrari, Ju 1 ;

作者机构： 1.Univ Oxford, Dept Zool, Oxford OX1 3PS, England

2.Jiangsu Acad Agr Sci, Inst Plant Protect, Nanjing 210014, Jiangsu, Peoples R China

3.Univ York, Dept Biol, York YO10 5DD, N Yorkshire, England

关键词： Acyrthosiphon pisum;Aphidius ervi;Hamiltonella defensa;horizontal transfer;invasion;Pandora neoaphidis;Regiella insecticola;symbiosis

期刊名称：EVOLUTION （ 影响因子：3.694； 五年影响因子：3.987 ）

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收录情况： SCI

摘要： Heritable microbial symbionts can have important effects on many aspects of their hosts' biology. Acquisition of a novel symbiont strain can provide fitness benefits to the host, with significant ecological and evolutionary consequences. We measured barriers to horizontal transmission by artificially transferring facultative symbionts from the grain aphid, Sitobion avenae, and five other aphid species into two clonal genotypes of S. avenae. We found the symbiont Hamiltonella defensa establishes infections more easily following a transfer from the same host species and that such infections are more stable. Infection success was also higher when the introduced symbiont strain was more closely related to the strain that was originally present in the host (but which had previously been removed). There were no differences among successfully established symbiont strains in their effect on aphid fecundity. Hamiltonella defensa did not confer protection against parasitoids in our S. avenae clones, although it often does in other aphid hosts. However, strains of the symbiont Regiella insecticola originating from two host species protected grain aphids against the pathogenic fungus Pandora neoaphidis. This study helps describe the extent to which facultative symbionts can act as a pool of adaptations that can be sampled by their eukaryote hosts.

  • 相关文献

[1]Unrelated facultative endosymbionts protect aphids against a fungal pathogen. Lukasik, Piotr,van Asch, Margriet,Guo, Huifang,Ferrari, Julia,Godfray, H. Charles J.,Guo, Huifang,Ferrari, Julia,Lukasik, Piotr.

[2]Protection against a fungal pathogen conferred by the aphid facultative endosymbionts Rickettsia and Spiroplasma is expressed in multiple host genotypes and species and is not influenced by co-infection with another symbiont. Lukasik, P.,Guo, H.,Van Asch, M.,Ferrari, J.,Godfray, H. C. J.,Guo, H.,Ferrari, J..

[3]Transcriptome Analysis of Green Peach Aphid (Myzus persicae): Insight into Developmental Regulation and Inter-Species Divergence. Fang, Jichao,Ji, Rui,Zhu-Salzman, Keyan,Wang, Yujun,Cheng, Yanbin,Zhang, Meiping,Zhang, Hong-Bin,Zhu, Li. 2016

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[6]Extensive host range of an endophytic fungus affects the growth and physiological functions in rice (Oryza sativa L.). Yuan, Zhi-Lin,Dai, Chuan-Chao,Li, Xia,Tian, Lin-Shuang,Wang, Xing-Xiang. 2007

[7]A native fungal symbiont facilitates the prevalence and development of an invasive pathogen-native vector symbiosis. Zhao, Lilin,Lu, Min,Zhang, Shuai,Sun, Jianghua,Lu, Min,Niu, Hongtao,Fang, Guofei. 2013

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