Patterns of Microbiome Variation Among Infrapopulations of Permanent Bloodsucking Parasites
Metadatos
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FRONTIERS MEDIA SA
Materia
Genome-resolved metagenomics Host-symbiont Intraspecific variation Lice Microbiota Shotgun metagenomics Symbiont
Fecha
2021Referencia bibliográfica
Doña J, Virrueta Herrera S, Nyman T, Kunnasranta M and Johnson KP (2021) Patterns of Microbiome Variation Among Infrapopulations of Permanent Bloodsucking Parasites. Front. Microbiol. 12:642543. doi: 10.3389/fmicb.2021.642543
Resumen
While interspecific variation in microbiome composition can often be readily explained by
factors such as host species identity, there is still limited knowledge of how microbiomes
vary at scales lower than the species level (e.g., between individuals or populations).
Here, we evaluated variation in microbiome composition of individual parasites among
infrapopulations (i.e., populations of parasites of the same species living on a
single host individual). To address this question, we used genome-resolved and
shotgun metagenomic data of 17 infrapopulations (balanced design) of the permanent,
bloodsucking seal louse Echinophthirius horridus sampled from individual Saimaa ringed
seals Pusa hispida saimensis. Both genome-resolved and read-based metagenomic
classification approaches consistently show that parasite infrapopulation identity is a
significant factor that explains both qualitative and quantitative patterns of microbiome
variation at the intraspecific level. This study contributes to the general understanding
of the factors driving patterns of intraspecific variation in microbiome composition,
especially of bloodsucking parasites, and has implications for understanding how wellknown processes occurring at higher taxonomic levels, such as phylosymbiosis, might
arise in these systems.