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HTS based monitoring of the efficiency of somatic embryogenesis and meristem culture as a method used for virus elimination in grapevine

ABSTRACT: HTS based monitoring of the efficiency of somatic embryogenesis and meristem culture as a method used for virus elimination in grapevine

PROVIDER: PRJNA670430 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR12858438.fastq.gz	Fastqsanger.gz
	SRR12858439.fastq.gz	Fastqsanger.gz
	SRR12858440.fastq.gz	Fastqsanger.gz
	SRR12858441.fastq.gz	Fastqsanger.gz
	SRR12858442.fastq.gz	Fastqsanger.gz

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HTS based monitoring of the efficiency of somatic embryogenesis and meristem culture as a method used for virus elimination in grapevine

Project description:Meristem culture and somatic embryogenesis is an effective tool for virus elimination of vegetatively propagated crops including grapevine. While they both are proved to be useful to eliminate the main grapevine viruses their efficiency differs according to the virus and the variety. In our work we investigated their efficiency using small RNA high-throughput sequencing as virus diagnostic method. Field grown mother plants of four clones representing three cultivars, infected with different viruses and viroids were selected for sanitation via somatic embryogenesis and meristem culture. Our results show that the sanitation with SE was efficient against all of the presenting viruses, including grapevine Pinot gris virus, grapevine rupestris vein feathering virus and grapevine Syrah virus 1, having no data using somatic embryogenesis for their elimination. In case of other viruses and viroids such as GFkV, GRSPaV, GYSVd-1, HSVd this study confirms the findings of earlier researches, that SE is a possible way for elimination. While the efficiency of the elimination of different viruses was high, in case of viroids this ratio was lower. Our work demonstrated that efficiency of SE is comparable to the technically difficult meristem culture technique, and show promising way for the high demand of the production of virus-free grapevine in the future.

2020-12-31 | GSE159758 | GEO

HTS-Based Monitoring of the Efficiency of Somatic Embryogenesis and Meristem Cultures Used for Virus Elimination in Grapevine.

Project description:Meristem culture and somatic embryogenesis are effective tools for virus elimination of vegetatively propagated crops including grapevine (Vitis vinifera L.). While both have been shown to be useful to eliminate the main grapevine viruses, their efficiency differs depending on the virus and grapevine variety. In our work, we investigated the efficiency of these two virus elimination methods using small RNA high-throughput sequencing (HTS) and RT-PCR as virus diagnostics. Field grown mother plants of four clones representing three cultivars, infected with different viruses and viroids, were selected for elimination via somatic embryogenesis (SE) and meristem culture (ME). Our results show for the first time that using SE, elimination in mother plants was effective for all viruses, i.e., grapevine rupestris vein feathering virus (GRVFV), grapevine Syrah virus 1 (GSyV-1), Grapevine virus T (GVT) and grapevine Pinot gris virus (GPGV). This study also confirms previous studies showing that SE is a possible strategy for the elimination of GFkV, GRSPaV, HSVd, and GYSVd-1. Our results demonstrate that the efficacy of virus elimination via SE is relatively high while the purging of viroids is lower. Our work provides evidence that the efficiency of SE is comparable to that of the technically difficult ME technique, and that SE will offer a more effective strategy for the production of virus-free grapevine in the future.

| S-EPMC7765609 | biostudies-literature

Transcriptome analysis of Human Trophoblast Stem cell (HTS) and TEAD4 knock down HTS cells by next generation sequencing

Project description:mRNA profiles of control Human Trophoblast Stem cell (HTS) and TEAD4 knock down HTS cells were generated by deep sequencing, in triplicate, using Illumina NovaSeq 6000 platform. TEAD4 Knock down in HTS cells were confirmed by RT-PCR analysis and immuno staining.

2020-05-29 | GSE144809 | GEO

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Project description:gnp07_regeneome_transdifferenciation - microdissection - Study of the moleculars mecanism during transdifferenciation of Root ApicalMeristem to Shoot Apical Meristem - middle of growth permits to induce transdifferenciation of root apical meristem to shoot apical meristem

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Project description:Neural development requires both synapse elaboration and elimination, yet relatively little is known about how these opposing activities are coordinated. Here, we provide evidence Hts/Adducin can serve this function. We show that Drosophila Hts/Adducin is enriched both pre- and postsynaptically at the NMJ. We then demonstrate that presynaptic Hts/Adducin is necessary and sufficient to control two opposing processes associated with synapse remodeling: (1) synapse stabilization as determined by light level and ultrastructural and electrophysiological assays and (2) the elaboration of actin-based, filopodia-like protrusions that drive synaptogenesis and growth. Synapse remodeling is sensitive to Hts/Adducin levels, and we provide evidence that the synaptic localization of Hts/Adducin is controlled via phosphorylation. Mechanistically, Drosophila Hts/Adducin protein has actin-capping activity. We propose that phosphorylation-dependent regulation of Hts/Adducin controls the level, localization, and activity of Hts/Adducin, influencing actin-based synapse elaboration and spectrin-based synapse stabilization. Hts/Adducin may define a mechanism to switch between synapse stability and dynamics.

| S-EPMC3073818 | biostudies-literature

Altered expression of SELF-PRUNING disrupts meristem homeostasis and facilitates delivery of signals to the meristem

Project description:Meristem maintenance, achieved through the highly conserved CLAVATA-WUSCHEL (CLV-WUS) regulatory circuit, is fundamental in balancing stem cell proliferation with cellular differentiation. Disruptions to meristem homeostasis can alter meristem size, leading to enlarged organs. Cotton, the world’s most important fiber crop, shows inherent variation in fruit size. Leveraging meristem regulation could benefit cotton agriculture and increase yields of high-quality fibers. Using virus-based gene manipulation in cotton, we altered expression of genes functioning in the CLV-WUS circuit to perturb meristem regulation and increase fruit size. Targeted alteration of individual components of the CLV-WUS circuit only modestly fasciated flowers and fruits. Unexpectedly, controlled expression of meristem regulator SELF-PRUNING (SP) dramatically increased the impacts of altered CLV-WUS expression on flower and fruit fasciation. Meristem transcriptomics show SP and genes of the CLV-WUS circuit are expressed independently from each other, suggesting these gene products are not acting in the same path. Virus-induced silencing of GhSP facilitated delivery of other signals to the meristem to dramatically alter organ specification. SELF-PRUNING has a role in cotton meristem homeostasis, and changes in GhSP expression increased access of virus-based signals to the meristem.

2023-03-01 | GSE206189 | GEO

Durum wheat meristem transcriptome

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Barcodes from HTS data

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Transdifferentiation from root to shoot apical meristem

Project description:au10-15_cineroots - transdifferentiation - Study of the molecular mechanism during transdifferenciation from root apical meristem to shoot apical meristem - culture in middle with different hormons, permits transdifferenciation from root to shoot tissues.

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