The Holobiont as a Key to the Adaptation and Conservation of Wild Bees in the Anthropocene

Maebe, Kevin; Vereecken, Nicolas; Piot, Niels; Reverté, Sara; Cejas, Diego; Michez, Denis; Vandamme, Peter; Smagghe, Guy

doi:10.3389/fevo.2021.781470

Cited by 12 publications

(9 citation statements)

References 55 publications

(54 reference statements)

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“…These gut-related organisms coevolved within their hosts during the last 80 million years ( 9 , 10 , 21 ) and contribute to carbohydrate digestion ( 2 , 18 , 22 ) and pathogen defense ( 23 – 26 ). The importance of bees for ecosystem integrity, the contribution of the bee gut microbiota to its hosts’ health, and the relative simplicity of the taxonomic composition of the bee gut microbiota, along with their mode of transmission, which is mainly vertical, have made bees an emerging model organism for the study of gut-related microbial communities ( 1 , 18 , 27 – 29 ).…”

Section: Introductionmentioning

confidence: 99%

Phylogenomic Analyses of Snodgrassella Isolates from Honeybees and Bumblebees Reveal Taxonomic and Functional Diversity

et al. 2022

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Section: Introductionmentioning

confidence: 99%

Phylogenomic Analyses of Snodgrassella Isolates from Honeybees and Bumblebees Reveal Taxonomic and Functional Diversity

et al. 2022

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“…While comprehensive functional microbiota studies can primarily be performed with axenic isolates and functional genome analyses, the present identification results revealed dominant gut bacteria and fungi that are primarily known as environmental microorganisms (Figure 1). While these gut microbes likely contribute some competitive advantages to their host (Maebe et al, 2021), this does not explain the rather exceptional invasive success of M. sculpturalis .…”

Section: Discussionmentioning

confidence: 99%

“…The mechanisms underlying adaptation and plasticity of this species to these novel environments remain unexplored. Researchers are increasingly aware of the importance of the microbiome component within the ‘holobiont’ concept (Maebe et al, 2021) to understand host health and nutrition (Engel & Moran, 2013; Miller et al, 2021). Microbes experience genetic evolution at a higher pace than their bee hosts and can be shared between pollinators via flowers (Gibson et al, 2018; Keller et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

Microbiota and pathogens in an invasive bee: Megachile sculpturalis from native and invaded regions

Tuerlings

Hettiarachchi

Joossens

et al. 2023

Insect Molecular Biology

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The present study aimed to characterise the bacterial, fungal and parasite gut community of the invasive bee Megachile sculpturalis sampled from native (Japan) and invaded (USA and France) regions via 16S rRNA and ITS2 amplicon sequencing and PCR detection of bee microparasites. The bacterial and fungal gut microbiota communities in bees from invaded regions were highly similar and differed strongly from those obtained in Japan. Core amplicon sequence variants (ASVs) within each population represented environmental micro‐organisms commonly present in bee‐associated niches that likely provide beneficial functions to their host. Although the overall bacterial and fungal communities of the invasive M. sculpturalis in France and the co‐foraging native bees Anthidium florentinum and Halictus scabiosae, were significantly different, five out of eight core ASVs were shared suggesting common environmental sources and potential transmission. None of the 46 M. sculpturalis bees analysed harboured known bee pathogens, while microparasite infections were common in A. florentinum, and rare in H. scabiosae. A common shift in the gut microbiota of M. sculpturalis in invaded regions as a response to changed environmental conditions, or a founder effect coupled to population re‐establishment in the invaded regions may explain the observed microbial community profiles and the absence of parasites. While the role of pathogen pressure in shaping biological invasions is still debated, the absence of natural enemies may contribute to the invasion success of M. sculpturalis.

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“…Thus, just as it is important to understand how hybridization impacts the traits of the host, it is equally important to understand how hybridization impacts the traits of the holobiont, including characteristics of the HA microbiome (Miller et al., 2021). Indeed, the eco‐evolutionary basis for holobionts has led to entirely new branches of research in areas as diverse as human health (Postler & Ghosh, 2017; Walter et al., 2013), conservation (Bahrndorff et al., 2016; Banerjee et al., 2020; Carthey et al., 2020; Jiménez & Sommer, 2017; Jin Song et al., 2019; Maebe et al., 2021; Redford et al., 2012; Trevelline et al., 2019; West et al., 2019; Zhu et al., 2021) and biotechnology (Bredon et al., 2020; Ren et al., 2022), and it is currently poised to do so within the field of hybridization research as well.…”

Section: Introductionmentioning

confidence: 99%

A conceptual framework for host‐associated microbiomes of hybrid organisms

Camper,

Laughlin,

Malagon

et al. 2024

Methods Ecol Evol

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Hybridization between organisms from evolutionarily distinct lineages can have profound consequences on organismal ecology, with cascading effects on fitness and evolution. Most studies of hybrid organisms have focused on organismal traits, for example, various aspects of morphology and physiology. However, with the recent emergence of holobiont theory, there has been growing interest in understanding how hybridization impacts and is impacted by host‐associated microbiomes. Better understanding of the interplay between host hybridization and host‐associated microbiomes has the potential to provide insight into both the roles of host‐associated microbiomes as dictators of host performance as well as the fundamental rules governing host‐associated microbiome assembly. Unfortunately, there is a current lack of frameworks for understanding the structure of host‐associated microbiomes of hybrid organisms. In this paper, we develop four conceptual models describing possible relationships between the host‐associated microbiomes of hybrids and their progenitor or ‘parent’ taxa. We then integrate these models into a quantitative ‘4H index’ and present a new R package for calculation, visualization and analysis of this index. We demonstrate how the 4H index can be used to compare hybrid microbiomes across disparate plant and animal systems. Our analyses of these data sets show variation in the 4H index across systems based on host taxonomy, host site and microbial taxonomic group. Our four conceptual models, paired with our 4H index and associated visualization tools, facilitate comparison across hybrid systems. This, in turn, allows for systematic exploration of how different aspects of host hybridization impact the host‐associated microbiomes of hybrid organisms.

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The Holobiont as a Key to the Adaptation and Conservation of Wild Bees in the Anthropocene

Cited by 12 publications

References 55 publications

Phylogenomic Analyses of Snodgrassella Isolates from Honeybees and Bumblebees Reveal Taxonomic and Functional Diversity

Phylogenomic Analyses of Snodgrassella Isolates from Honeybees and Bumblebees Reveal Taxonomic and Functional Diversity

Microbiota and pathogens in an invasive bee: Megachile sculpturalis from native and invaded regions

A conceptual framework for host‐associated microbiomes of hybrid organisms

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