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Virus Prospecting in Crickets-Discovery and Strain Divergence of a Novel Iflavirus in Wild and Cultivated Acheta domesticus

Rodrigues De Miranda, Joachim and Granberg, Fredrik and Onorati, Piero and Jansson, Anna and Berggren, Åsa (2021). Virus Prospecting in Crickets-Discovery and Strain Divergence of a Novel Iflavirus in Wild and Cultivated Acheta domesticus. Viruses. 13 , 364
[Research article]

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Abstract

Orthopteran insects have high reproductive rates leading to boom-bust population dynamics with high local densities that are ideal for short, episodic disease epidemics. Viruses are particularly well suited for such host population dynamics, due to their supreme ability to adapt to changing transmission criteria. However, very little is known about the viruses of Orthopteran insects. Since Orthopterans are increasingly reared commercially, for animal feed and human consumption, there is a risk that viruses naturally associated with these insects can adapt to commercial rearing conditions, and cause disease. We therefore explored the virome of the house cricket Acheta domesticus, which is both part of the natural Swedish landscape and reared commercially for the pet feed market. Only 1% of the faecal RNA and DNA from wild-caught A. domesticus consisted of viruses. These included both known and novel viruses associated with crickets/insects, their bacterial-fungal microbiome, or their plant food. Relatively abundant among these viral Operational Taxonomic Units (OTUs) was a novel Iflavirus, tentatively named Acheta domesticus Iflavirus (AdIV). Quantitative analyses showed that AdIV was also abundant in frass and insect samples from commercially reared crickets. Interestingly, the wild and commercial AdIV strains had short, extremely divergent variation hotspots throughout the genome, which may indicate specific adaptation to their hosts' distinct rearing environments.

Authors/Creators:Rodrigues De Miranda, Joachim and Granberg, Fredrik and Onorati, Piero and Jansson, Anna and Berggren, Åsa
Title:Virus Prospecting in Crickets-Discovery and Strain Divergence of a Novel Iflavirus in Wild and Cultivated Acheta domesticus
Series Name/Journal:Viruses
Year of publishing :2021
Volume:13
Article number:364
Number of Pages:14
Publisher:MDPI
ISSN:1999-4915
Language:English
Publication Type:Research article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 1 Natural sciences > 106 Biological Sciences (Medical to be 3 and Agricultural to be 4) > Ecology
(A) Swedish standard research categories 2011 > 1 Natural sciences > 106 Biological Sciences (Medical to be 3 and Agricultural to be 4) > Microbiology (Microbiology in the medical area to be 30109)
Keywords:metagenome, virome, Acheta domesticus, cricket, Acheta domesticus Iflavirus, strain evolution, cricket rearing
URN:NBN:urn:nbn:se:slu:epsilon-p-111594
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-111594
Additional ID:
Type of IDID
DOI10.3390/v13030364
Web of Science (WoS)000634203700001
ID Code:23340
Faculty:NJ - Fakulteten för naturresurser och jordbruksvetenskap
VH - Faculty of Veterinary Medicine and Animal Science
Department:(NL, NJ) > Dept. of Ecology
(S) > Dept. of Ecology

(VH) > Department of Biomedical Science and Veterinary Public Health
(VH) > Dept. of Anatomy, Physiology and Biochemistry
Deposited By: SLUpub Connector
Deposited On:23 Apr 2021 10:23
Metadata Last Modified:23 Apr 2021 10:31

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