A new research article, written by Nicolas Leroux has been published in Frontiers. This study argue that while an ecologically driven evolution admittedly played a role in Amazonian fish diversification, that a neutral evolutionary processes explain most of the divergence between M. festivus populations.

• Leroux N, Sylvain F-É, Normandeau E, Holland A, Val AL and Derome N (2022) Evolution of an Amazonian Fish Is Driven by Allopatric Divergence Rather Than Ecological Divergence. Front. Ecol. Evol. 10:875961. doi: 10.3389/fevo.2022.875961

A new research article by Sarah El Khoury  has been published in microorganisms. These findings highlight that endogenous bacterial strains may constitute the base material from which to develop a promising probiotic strategy to mitigate the toxic effects of clothianidin exposure on honeybee colony health.

• El Khoury, S.; Giovenazzo, P.; Derome, N. Endogenous Honeybee Gut Microbiota Metabolize the Pesticide Clothianidin. Microorganisms 2022, 10, 493. https://doi.org/10.3390/microorganisms10030493

A new research article written by Jeff Gauhthier has been published in frontiers. It presents A. salmonicida subsp. salmonicida 890054 as a prototype strain for standardized furunculosis challenges with survival data. Computational analysis of sequencing results provided a complete circular genome with annotations of plasmids carrying virulence factors, antimicrobial resistance, and secondary metabolite coding genes.

To read this article:

• Gauthier J., Marquis H., Paquet V.E., Charette S.J., Levesque R.C., and Derome N. Genomic perspectives on Aeromonas salmonicida subsp. salmonicida strain 890054 as a model system for pathogenicity studies and mitigation of fish infections. Frontiers in Marine Science. 8:1679 doi.org/10.3389/fmars.2021.744052

A new research article by Sarah El Khoury, Jeff Gauthier, Sidki Bouslama and Bachar Cheaib has been published in microorganisms. Their findings confirm that exposure to clothianidin triggers a reshuffling of beneficial strains and/or potentially pathogenic taxa within the gut, suggesting a honeybee’s symbiotic defense systems’ disruption, such as resistance to microbial colonization.

To read this article:

• El Khoury, S.; Gauthier, J.; Bouslama, S.; Cheaib, B.; Giovenazzo, P.; Derome, N. Dietary Contamination with a Neonicotinoid (Clothianidin) Gradient Triggers Specific Dysbiosis Signatures of Microbiota Activity along the Honeybee (Apis mellifera) Digestive Tract. Microorganisms 2021, 9, 2283. https://doi.org/10.3390/microorganisms9112283
  

 Photo: @CAMANANART.

A new research article, written by Camille Lavoie has been published in microorganisms. This study is the first to demonstrate the long-term effect of early microbiota ontogeny in artificial rearing for natural population conservation programs, raising the need to implement microbial ecology.

To read this article, click below:

• Lavoie, C.; Wellband, K.; Perreault, A.; Bernatchez, L.; Derome, N. Artificial Rearing of Atlantic Salmon Juveniles for Supportive Breeding Programs Induces Long-Term Effects on Gut Microbiota after Stocking. Microorganisms 2021, 9, 1932. https://doi.org/10.3390/microorganisms9091932

A new research article, written by Émie Audet-Gilbert, François-Étienne Sylvain and Sidki Bouslama has been published in microbiome. It explores a novel hypothesis by testing the effect of remote interaction on epithelial microbiota restructuration in both partners.

To read:

• Émie AG, François-Étienne S, Sidki B, Nicolas D. 2021. Microbiomes of clownfish and their symbiotic host anemone converge before their first physical contact. Microbiome. 9(1):109. doi: 10.1186/s40168-021-01058-1. PMID: 34001275; PMCID: PMC8130386.