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Article dans une revue

No evidence for Wolbachia as a nutritional co-obligate endosymbiont in the aphid Pentalonia nigronervosa

Abstract : Obligate symbiotic associations are present in a wide variety of animals with a nutrient-restricted diet. Aphids (hemiptera: Aphididae) almost-universally host Buchnera aphidicola bacteria in specialised organs (called bacteriomes). These bacteria supply the aphid with essential nutrients lacking from their diet (i.e. essential amino acids and some B vitamins). Some aphid lineages, such as species from the Lacninae subfamily, have evolved co-obligate associations with secondary endosymbionts, deriving from a loss of biotin-and riboflavin-biosynthetic genes. In this study, I re-analyse previously published sequencing data from the banana aphid Pentalonia nigronervosa. I show that the metabolic inference results from De Clerck et al. (Microbiome 3:63, 2015) are incorrect and possibly arise from the use of inadequate methods. Additionally, I discuss how the seemingly biased interpretation of their antibiotic treatment analyses together with an incorrect genome-based metabolic inference resulted in the erroneous suggestion "that a co-obligatory symbiosis between B. aphidicola and Wolbachia occurs in the banana aphid".
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https://hal.inrae.fr/hal-02861796
Déposant : Michèle Rocher <>
Soumis le : mardi 9 juin 2020 - 11:12:59
Dernière modification le : jeudi 2 juillet 2020 - 14:23:20

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Alejandro Manzano-Marin. No evidence for Wolbachia as a nutritional co-obligate endosymbiont in the aphid Pentalonia nigronervosa. Microbiome, BioMed Central, 2020, 8 (1), pp.72. ⟨10.1186/s40168-020-00865-2⟩. ⟨hal-02861796⟩

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