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Almond Genome

ABSTRACT: Transposons played a major role in the diversification between the closely related almond (Prunus dulcis) and peach (P. persica) genomes: Results from the almond genome sequence.

PROVIDER: PRJEB32994 | ENA |

REPOSITORIES: ENA

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			Action	DRS
		Other
		Other
	ERR3373960_1.fastq.gz	Fastqsanger.gz
	ERR3373960_2.fastq.gz	Fastqsanger.gz
	ERR3373970_1.fastq.gz	Fastqsanger.gz

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The almond genome

Project description:Transposons played a major role in the diversification between the closely related almond (Prunus dulcis) and peach (P. persica) genomes: Results from the almond genome sequence

| PRJEB32985 | ENA

Involvement of different plant viruses in the activation of RNA silencing-related genes and the defensive response against Plum pox virus of ‘GF305’ peach (Prunus persica) grafted with ‘Garrigues’ almond (P. dulcis)

Project description:Plum pox virus (PPV) causes the serious sharka disease in Prunus trees. Peach [P. persica (L.) Batsch] trees are severely affected by PPV and no definitive source of genetic resistance has been identified at this moment. Previous results showed, however, that PPV-resistant ‘Garrigues’ almond [P. dulcis (Mill.) D.A. Webb] was able to transfer its resistance to ‘GF305’ peach through grafting, preventing these trees from PPV infection and reducing symptomatology and viral load in PPV-infected plants. A recent study tried to identify genes responsible for this effect by studying mRNA expression through RNAseq data in peach and almond plants, before and after grafting, and before and after PPV infection. In this work, we used the same peach and almond samples, but focused the high-throughput analyses on small RNAs (sRNAs) expression. We studied massive sequencing data and found an interesting pattern of sRNAs overexpression linked to antiviral defense genes that suggested activation of these genes followed by downregulation to basal levels. We also discovered that ‘Garrigues’ almond plants were infected by different plant viruses that were transferred to peach plants. The large amounts of viral sRNAs found in grafted peaches indicated a strong RNA silencing antiviral response and led us to postulate that these plant viruses could be collaborating by cross-protection in the observed ‘Garrigues’ effect.

2022-11-02 | GSE188935 | GEO

Absence of major epigenetic and transcriptomic changes accompanying the interspecific cross between peach and almond

Project description:We analysed the DNA methylation and transcription levels of transposable elements and genes in leaves of Prunus persica and Prunus dulcis and in their F1 hybrid using high-throughput sequencing tecnhologies. We can conclude that the merging of the two parental genomes in the P. persica x P. dulcis hybrid does not result in a “genomic shock” with significant changes in the DNA methylation or in the transcription.

2022-08-10 | GSE198152 | GEO

Almond x Peach interspecific hybrid

Project description:Identification of putative markers of noninfectious bud failure in almond (Prunus dulcis [Mill] D.A. Webb) through genome wide DNA methylation profiling and gene expression analysis in an almond x peach hybrid population

| PRJNA770308 | ENA

Prunus persica x Prunus dulcis

Project description:Prunus persica x Prunus dulcis Map

| PRJNA80625 | ENA

Prunus dulcis x Prunus persica

Project description:Prunus dulcis x Prunus persica Map

| PRJNA164761 | ENA

Prunus dulcis x Prunus persica

Project description:Prunus dulcis x Prunus persica Map

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Prunus dulcis response to novel defense elicitor peptides and control of Xylella fastidiosa infections

Project description:Xylella fastidiosa is a plant pathogenic bacterium that has been introduced in the European Union (EU), threatening the agricultural economy of relevant Mediterranean crops such as almond (Prunus dulcis). Plant defense elicitor peptides would be promising to manage diseases such as almond leaf scorch but their effect on the host has not been fully studied. In this work, the response of almond plants to the defense elicitor peptide flg22-NH2 was studied in-depth using RNA-seq, confirming the activation of the salicylic acid and abscisic acid pathways. Marker genes related to the response triggered by flg22-NH2 were used to study the effect of the application strategy of the peptide on almond plants and to depict its time course. The application of flg22-NH2 by endotherapy triggered the highest number of upregulated genes, especially at 6 hours after the treatment. A library of peptides that include BP100-flg15, HpaG23, FV7, RIJK2, PIP-1, Pep13, BP16-Pep13, flg15-BP100 and BP16 triggered a stronger defense response in almond plants than flg22-NH2. The best candidate, FV7, when applied by endotherapy on almond plants inoculated with X. fastidiosa, significantly reduced levels of the pathogen and decreased disease symptoms. Therefore, these novel plant defense elicitors are suitable candidates to manage diseases caused by X. fastidiosa, in particular almond leaf scorch.

2024-07-13 | GSE259385 | GEO

Project description:Gene expression analysis of induced Plum pox virus resistance in peach (Prunus persica) by almond (P. dulcis) grafting

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Identification of miRNAs and Their Target Genes in Peach (Prunus persica L.) Using High-Throughput Sequencing and Degradome Analysis

Project description:MicroRNAs play critical roles in various biological and metabolic processes. The function of miRNAs has been widely studied in model plants such as Arabidopsis and rice. However, the number of identified miRNAs and related miRNA targets in peach (Prunus persica) is limited. To understand further the relationship between miRNAs and their target genes during tissue development in peach, a small RNA library and three degradome libraries were constructed from three tissues for deep sequencing. We identified 117 conserved miRNAs and 186 novel miRNA candidates in peach by deep sequencing and 19 conserved miRNAs and 13 novel miRNAs were further evaluated for their expression by RT-qPCR. The number of gene targets that were identified for 26 conserved miRNA families and 38 novel miRNA candidates, were 172 and 87, respectively. Some of the identified miRNA targets were abundantly represented as conserved miRNA targets in plant. However, some of them were first identified and showed important roles in peach development. Our study provides information concerning the regulatory network of miRNAs in peach and advances our understanding of miRNA functions during tissue development. To identify more conserved and peach-speciM-oM-,M-^Ac miRNAs and their target genes and to understand further the mechanism of miRNA-regulated target genes during tissue development in peach, a small RNA library and three degradome libraries were constructed from three different tissues for deep sequencing.

2014-01-01 | E-GEOD-49579 | biostudies-arrayexpress

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