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Virome of monocotyledonous weeds growing at crop fields revealed infection with several viruses and suggested their virus reservoir role

ABSTRACT: Virome of monocotyledonous weeds growing at crop fields revealed infection with several viruses and suggested their virus reservoir role

PROVIDER: PRJNA1124956 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR29438437.fastq.gz	Fastqsanger.gz
	SRR29438438.fastq.gz	Fastqsanger.gz
	SRR29438439.fastq.gz	Fastqsanger.gz
	SRR29438440.fastq.gz	Fastqsanger.gz
	SRR29438441.fastq.gz	Fastqsanger.gz

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Virome of monocotyledonous weeds growing at crop fields revealed infection with several viruses and suggested their virus reservoir role

Project description:During a proof-of-concept study, virome of millet, grown as weed was determined by small RNA HTS. As a result, from the pools of 20 randomly collected millet samples collected at two locations, we identified the presence of three viruses, two of them first time in Hungary. Based on our results we could only suspect that these viruses: wheat streak mosaic virus (WSMV), barley stripe mosaic virus (BYSMV) and barley virus G (BVG) could have been overwintered in millet or other monocotyledonous weeds growing at these fields. As a follow-up research, in the summer of 2021, we collected symptomatic leaves of several monocotyledonous plants at the same fields. This time the sampling was done in July. From the samples, small RNA HTS was carried out.

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Millet can be infected with several viruses if grown as a weed on crop fields

Project description:Millet is a dangerous weed in Hungary. Lack of seed dormancy helps it to spread easily and be present at maize, wheat and other crop fields. Our previous report revealed the possibility that millet can also play a role as a virus reservoir. In that study we detected the presence of several viruses in millet using DAS ELISA. Because serological methods can only detect the presence of the investigated particular pathogens, we suspected that other, previously unknown viruses can also be present in this weed. To investigate this theory, we randomly sampled two locations and collected millets showing stunting, chlorosis, and striped leaves and investigated the presence of viruses using small RNA HTS as a diagnostic method. Our result confirmed the widespread presence of wheat streak mosaic virus at both locations. Moreover, barley yellow striate mosaic virus and barley virus G were also identified, which have not been described from Hungary before. As these viruses can cause severe diseases on wheat, their presence on a weed mean a potential infection risk. Our study indicates that the presence of millets on the fields needs a special control in order to prevent emergence of new diseases at crop fields.

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Millet can be infected with several viruses if grown as a weed on crop fields

Project description:Millet can be infected with several viruses if grown as a weed on crop fields

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Gene expression induced by Nanosecond pulsed electric fields

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Millet Could Be both a Weed and Serve as a Virus Reservoir in Crop Fields.

Project description:Millet is a dangerous weed in crop fields. A lack of seed dormancy helps it to spread easily and be present in maize, wheat, and other crop fields. Our previous report revealed the possibility that millet can also play a role as a virus reservoir. In that study, we focused on visual symptoms and detected the presence of several viruses in millet using serological methods, which can only detect the presence of the investigated pathogen. In this current work, we used small RNA high-throughput sequencing as an unbiased virus diagnostic method to uncover presenting viruses in randomly sampled millet grown as a volunteer weed in two maize fields, showing stunting, chlorosis, and striped leaves. Our results confirmed the widespread presence of wheat streak mosaic virus at both locations. Moreover, barley yellow striate mosaic virus and barley virus G, neither of which had been previously described in Hungary, were also identified. As these viruses can cause severe diseases in wheat and other cereals, their presence in a weed implies a potential infection risk. Our study indicates that the presence of millet in fields requires special control to prevent the emergence of new viral diseases in crop fields.

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