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Genetic identity and genotype × genotype interactions between symbionts outweigh species level effects in an insect microbiome.
Smee, Melanie R; Raines, Sally A; Ferrari, Julia.
Afiliação
  • Smee MR; Department of Biology, University of York, York, UK. melaniesmee@gmail.com.
  • Raines SA; Microbiology Department, Cornell University, Ithaca, NY, USA. melaniesmee@gmail.com.
  • Ferrari J; Department of Biology, University of York, York, UK.
ISME J ; 15(9): 2537-2546, 2021 09.
Article em En | MEDLINE | ID: mdl-33712703
ABSTRACT
Microbial symbionts often alter the phenotype of their host. Benefits and costs to hosts depend on many factors, including host genotype, symbiont species and genotype, and environmental conditions. Here, we present a study demonstrating genotype-by-genotype (G×G) interactions between multiple species of endosymbionts harboured by an insect, and the first to quantify the relative importance of G×G interactions compared with species interactions in such systems. In the most extensive study to date, we microinjected all possible combinations of five Hamiltonella defensa and five Fukatsuia symbiotica (X-type; PAXS) isolates into the pea aphid, Acyrthosiphon pisum. We applied several ecological challenges a parasitoid wasp, a fungal pathogen, heat shock, and performance on different host plants. Surprisingly, genetic identity and genotype × genotype interactions explained far more of the phenotypic variation (on average 22% and 31% respectively) than species identity or species interactions (on average 12% and 0.4%, respectively). We determined the costs and benefits associated with co-infection, and how these compared to corresponding single infections. All phenotypes were highly reliant on individual isolates or interactions between isolates of the co-infecting partners. Our findings highlight the importance of exploring the eco-evolutionary consequences of these highly specific interactions in communities of co-inherited species.
Assuntos

Texto completo: 1 Base de dados: MEDLINE Assunto principal: Afídeos / Microbiota Limite: Animals Idioma: En Ano de publicação: 2021 Tipo de documento: Article

Texto completo: 1 Base de dados: MEDLINE Assunto principal: Afídeos / Microbiota Limite: Animals Idioma: En Ano de publicação: 2021 Tipo de documento: Article