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ABSTRACT: Whole genome of cyst nematode Heterodera schachtii

PROVIDER: PRJNA1111823 | ENA |

REPOSITORIES: ENA

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			Action	DRS
		Other
	SRR29056515_1.fastq.gz	Fastqsanger.gz
	SRR29056515_2.fastq.gz	Fastqsanger.gz
	SRR29056516_subreads.fastq.gz	Fastqsanger.gz
	SRR29056517_1.fastq.gz	Fastqsanger.gz

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Col-0 vs rbohD/F

Project description:This experiment analyzes the changes in expression of twelve days old Arabidopsis roots after 10 hours of beet cyst nematode Heterodera schachtii treatment

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Differential gene expression in roots of tcp9 and tcp20 mutants of Arabidopsis thaliana upon Heterodera schachtii infection as measured by RNAseq

Project description:We compared the gene expression of wild-type Col-0, tcp9, tcp20, and the double mutant tcp9tcp20. We either infected or mock-infected the plants with the beet cyst nematode Heterodera schachtii and measured the root transcriptome after 24, 48, and 72 hours post infection using RNA-seq. The aim of the experiment was to determine whether the tcp mutatants affected gene expression patterns induced by nematode infection.

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Nematode infection migratory stage

Project description:This experiment analyzes the changes in expression of twelve days old Arabidopsis roots at ten hours post inoculation upon cyst nematode H. schachtii infection.

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Project description:The cereal cyst nematode (CCN, Heterodera avenae) is a major pest of wheat (Triticum spp) that reduces crop yields in many countries. Cyst nematodes are obligate sedentary endoparasites that reproduce by amphimixis. Here, we report the first transcriptome analysis of two parasitic stages of H. avenae.

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RNA-seq analysis of Arabidopsis thaliana wild-type roots and type-A arr3,4,5,6,7,8,9,15 mutant roots non-infected and infected with Heterodera schachtii nematodes

Project description:Plant-parasitic cyst nematodes induce the formation of hypermetabolic feeding sites, termed syncytia, as their sole source of nutrients. The formation of the syncytium is orchestrated by the nematode in part by modulation of phytohormone responses, including cytokinin. In response to infection by the nematode H. schachtii, cytokinin signaling is transiently induced at the site of infection and in the developing syncytium. Arabidopsis lines with reduced cytokinin sensitivity show reduced susceptibility to nematode infection, indicating that cytokinin signaling is required for optimal nematode development. Furthermore, lines with increased cytokinin sensitivity also exhibit reduced nematode susceptibility. To ascertain why cytokinin hypersensitivity reduces nematode parasitism, we examined the transcriptomes in wild-type and a cytokinin-hypersensitive type-A arr Arabidopsis mutant in response to H. schachtii infection. Genes involved in the response to biotic stress and defense response were elevated in the type-A arr mutant in the absence of nematodes and were hyper-induced following H. schachtii infection, which suggests that the Arabidopsis type-A arr mutants impede nematode development because they are primed to respond to pathogen infection. These results suggest that cytokinin signaling is required for optimal H. schachtii parasitism of Arabidopsis, but that elevated cytokinin signaling triggers a heightened immune response to nematode infection.

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Genes regulated by 4D09 effector from cyst nematode Heterodera schachtii and its host target (14-3-3Ɛ) in Arabidopsis roots

Project description:Arabidopsis Affymetrix ATH1 GeneChips were used to compare the mRNA profiles of root tissues of the transgenic plants overexpressing 4D09 effector gene from the cyst nematode Heterodera schachtii and the wild-type (C24). Also, Arabidopsis Affymetrix ATH1 GeneChips were used to compare the mRNA profiles of root tissues of the transgenic plants overexpressing 14-3-3Ɛ gene from Arabidopsis and the wild-type (Col-0). Wild-type (Arabidopsis thaliana, ecotypes C24 and Col-0 ), and the transgenic plants overexpressing 4D09 effector gene or overexpressing 14-3-3Ɛ gene from Arabidopsis were grown in vertical culture dishes on modified Knop’s medium for 2 weeks and then root tissues were collected for RNA extraction. ****[PLEXdb(http://www.plexdb.org) has submitted this series at GEO on behalf of the original contributor, Tarek Hewezi. The equivalent experiment is AT144 at PLEXdb.]

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Project description:Sugar beet (Beta vulgaris subsp. vulgaris) is an economically important crop and provides nearly one third of the global sugar production annually. The beet cyst nematode (BCN), Heterodera schachtii, causes major yield losses in sugar beet worldwide. The most effective and economic approach to control this nematode is growing tolerant or resistant cultivars. To identify candidate genes involved in susceptibility and resistance, the transcriptome of sugar beet and BCN in compatible and incompatible interactions at two time points, was studied using mRNA-seq. In total, 16 cDNA libraries were constructed and 442 691 707raw reads were obtained. In the compatible interaction, many alterations in phytohormone-related genes were detected. The effect of exogenous application of methyl jasmonate and ethephon was therefore investigated and the results revealed significant reduction of J2s infection and female development rates in treated susceptible plants. Our results revealed candidate genes putatively involved in the Hs1pro1-induced resistance, such as genes related to phenylpropanoid pathway, putative R genes and genes encoding F-box proteins, zinc finger and NAC transcription factors, ABC transporters, BURP and CYSTM proteins. Also, the transcriptome of BCN in the infected root samples was analyzed and several nematode effector genes were found. Our study is the first investigation of the transcriptome profile in the compatible and incompatible interactions between sugar beet and BCN.

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Heterodera glycines strain:PA3

Project description:Heterodera glycines strain: PA3 (soybean cyst nematode)

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