Towards an understanding of the avian virome

François, Sarah; Pybus, Oliver G.

doi:10.1099/jgv.0.001447

Cited by 20 publications

(19 citation statements)

References 39 publications

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“…As in many recent avian virome studies, most of the newly identified viruses were from the families Picornaviridae , Parvoviridae , Circoviridae , and Caliciviridae [ 40 ]. Generally, all the closest relatives of the viruses discovered in this study were avian viruses, indicative of a relatively long evolutionary history in birds.…”

Section: Discussionmentioning

confidence: 99%

Meta-transcriptomic analysis of the virome and microbiome of the invasive Indian myna (Acridotheres tristis) in Australia

2021

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Invasive species exert a serious impact on native fauna and flora and have become the target of eradication and management efforts worldwide. Invasive avian species can also be important pathogen reservoirs, although their viromes and microbiomes have rarely been studied. As one of the top 100 invasive pest species globally, the expansion of Indian mynas ( Acridotheres tristis ) into peri-urban and rural environments, in conjunction with increasing free-ranging avian agricultural practices, may increase the risk of microbial pathogens jumping species boundaries. Herein, we used a meta-transcriptomic approach to explore the microbes present in brain, liver and large intestine of 16 invasive Indian myna birds in Sydney, Australia. From this, we discovered seven novel viruses from the families Adenoviridae, Caliciviridae, Flaviviridae, Parvoviridae and Picornaviridae . Interestingly, each of the novel viruses identified shared less than 80% genomic similarity with their closest relatives from other avian species, indicative of a lack of detectable virus transmission between invasive mynas to native or domestic species. Of note, we also identified two coccidian protozoa, Isospora superbusi and Isospora greineri , from the liver and gut tissues of mynas. Overall, these data demonstrate that invasive mynas can harbor a diversity of viruses and other microorganisms such that ongoing pathogen surveillance in this species is warranted.

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Section: Discussionmentioning

confidence: 99%

Meta-transcriptomic analysis of the virome and microbiome of the invasive Indian myna (Acridotheres tristis) in Australia

2021

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“…Research based on other molecular techniques would be advisable for better understanding of the real role of the viruses mentioned in this paper. A promising alternative could be viral metagenomics (viromics), which is based on the unbiased amplification of genetic material rather than the amplification of conserved genes that are not shared by all viruses, allowing the simultaneous detection of all the members of viral communities (thus the detection of co-infections), and putatively to the discovery of new viral agents responsible for watery droppings [114].…”

Section: Discussionmentioning

confidence: 99%

Occurrence and Role of Selected RNA-Viruses as Potential Causative Agents of Watery Droppings in Pigeons

Łukaszuk

Stenzel

2020

Pathogens

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The diseases with watery droppings (diarrhea and/or polyuria) can be considered some of the most severe health problems in domestic pigeons of various ages. Although they do not always lead to bird death, they can contribute to poor weight gains and hindered development of young pigeons and, potentially, to poor racing results in sports birds. The gastrointestinal tract disorders of pigeons may be of various etiology, but some of the causative agents are viral infections. This review article provides information collected from scientific reports on RNA-viruses belonging to the Astroviridae, Picornaviridae, and Coronaviridae families; the Avulavirinae subfamily; and the Rotavirus genus that might be implicated in such health problems. It presents a brief characterization, and possible interspecies transmission of these viruses. We believe that this review article will help clinical signs of infection, isolation methods, occurrence in pigeons and poultry, systemize and summarize knowledge on pigeon enteropathogenic viruses and raise awareness of the importance of disease control in pigeons.

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“…However, there is still a need to clearly identify the gaps in our modern understanding of wild bird and poultry viromes. Avian viromes can generate additional information to routine monitoring programs and clarify our understanding of how zoonotic viruses effect human health [14,15]. Currently, with the widespread development of technologies for next generation sequencing (NGS) and the analysis of metagenomic data, more and more information on microbial communities is becoming available to researchers.…”

Section: Perspectives Of the "Avian Pathogens" Researchmentioning

confidence: 99%

Avian Pathogens: Editorial and the Perspectives of Research

Sharshov

2022

Microorganisms

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In the last ten years, humanity has faced new challenges in the field of human and animal health, including emerging viral infections. The widespread occurrence of emerging and re-emerging pathogens (e.g., highly pathogenic avian influenza virus (HPAIV), the new COVID-2019 of zoonotic nature, coronaviruses that cause severe acute respiratory syndrome (SARS), and Middle East respiratory syndrome (MERS)) presents a serious threat to humans. Avian pathogens cause devastating economic losses in poultry industries worldwide. Poultry is one of the main sources of protein in Asia. For instance, in China alone, with a population of more than 1.3 billion people, poultry meat consumption has increased to 19.6 kg/year per person (FAO). According to official estimates, this is over 25 million tons per year, or more than 12.7 billion birds. Therefore, poultry farming in Southeast Asia is considered one of the main “vessels” where avian pathogens can evolve. Wild bird migration makes the spread of these pathogens to other regions increasingly likely, as we have seen worldwide with the H5N8 influenza virus. In addition, avian pathogens can cause devastating epizootics among wild birds and threaten the planet’s bioresources. The importance of wild birds as potential vectors of disease has received recent renewed interest, especially in the frame of the global virome/microbiome concept. Understanding the spread of bacterial and viral pathogens in wild birds may serve as a useful model for examining the spread of other disease organisms, both among birds, and from birds to other taxa. This Special Issue aims to summarize recent advances and to attract new research articles that address existing pathogens in poultry and wild birds. It also aims to compare the epidemiological situation across avian pathogens or countries.

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Towards an understanding of the avian virome

Cited by 20 publications

References 39 publications

Meta-transcriptomic analysis of the virome and microbiome of the invasive Indian myna (Acridotheres tristis) in Australia

Meta-transcriptomic analysis of the virome and microbiome of the invasive Indian myna (Acridotheres tristis) in Australia

Occurrence and Role of Selected RNA-Viruses as Potential Causative Agents of Watery Droppings in Pigeons

Avian Pathogens: Editorial and the Perspectives of Research

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