TY - JOUR
T1 - Mouse vendor influence on the bacterial and viral gut composition exceeds the effect of diet
AU - Rasmussen, Torben Sølbeck
AU - de Vries, Liv
AU - Kot, Witold
AU - Hansen, Lars Hestbjerg
AU - Castro-Mejía, Josué L.
AU - Vogensen, Finn Kvist
AU - Hansen, Axel Kornerup
AU - Nielsen, Dennis Sandris
PY - 2019
Y1 - 2019
N2 - Often physiological studies using mice from one vendor show different outcome when being reproduced using mice from another vendor. These divergent phenotypes between similar mouse strains from different vendors have been assigned to differences in the gut microbiome. During recent years, evidence has mounted that the gut viral community plays a key role in shaping the gut microbiome and may thus also influence mouse phenotype. However, to date inter-vendor variation in the murine gut virome has not been studied. Using a metavirome approach, combined with 16S rRNA gene sequencing, we here compare the composition of the viral and bacterial gut community of C57BL/6N mice from three different vendors exposed to either a chow-based low-fat diet or high-fat diet. Interestingly, both the bacterial and the viral component of the gut community differed significantly between vendors. The different diets also strongly influenced both the viral and bacterial gut community, but surprisingly the effect of vendor exceeded the effect of diet. In conclusion, the vendor effect is substantial not only on the gut bacterial community but also strongly influences viral community composition. Given the effect of GM on mice phenotype, this is essential to consider for increasing reproducibility of mouse studies.
AB - Often physiological studies using mice from one vendor show different outcome when being reproduced using mice from another vendor. These divergent phenotypes between similar mouse strains from different vendors have been assigned to differences in the gut microbiome. During recent years, evidence has mounted that the gut viral community plays a key role in shaping the gut microbiome and may thus also influence mouse phenotype. However, to date inter-vendor variation in the murine gut virome has not been studied. Using a metavirome approach, combined with 16S rRNA gene sequencing, we here compare the composition of the viral and bacterial gut community of C57BL/6N mice from three different vendors exposed to either a chow-based low-fat diet or high-fat diet. Interestingly, both the bacterial and the viral component of the gut community differed significantly between vendors. The different diets also strongly influenced both the viral and bacterial gut community, but surprisingly the effect of vendor exceeded the effect of diet. In conclusion, the vendor effect is substantial not only on the gut bacterial community but also strongly influences viral community composition. Given the effect of GM on mice phenotype, this is essential to consider for increasing reproducibility of mouse studies.
KW - Animal model reproducibility
KW - Bacteriophages
KW - Gut microbiota
KW - Vendor effect
KW - Virome
U2 - 10.3390/v11050435
DO - 10.3390/v11050435
M3 - Journal article
C2 - 31086117
AN - SCOPUS:85066256665
VL - 11
JO - Viruses
JF - Viruses
SN - 1999-4915
IS - 5
M1 - 435
ER -