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ABSTRACT: Petunia hybrida Transcriptome

PROVIDER: PRJNA693880 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR13500733_1.fastq.gz	Fastqsanger.gz
	SRR13500733_2.fastq.gz	Fastqsanger.gz
	SRR13500734_1.fastq.gz	Fastqsanger.gz
	SRR13500734_2.fastq.gz	Fastqsanger.gz
	SRR13500735_1.fastq.gz	Fastqsanger.gz

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Petunia hybrida

Project description:Petunia hybrida Transcriptome

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Revealing impaired pathways in regulatory mutant by high-throughput characterization of Petunia axillaris and Petunia inflata transcriptomes.

Project description:Petunia is an excellent model system, especially for genetic, physiological and molecular studies. Thus far, however, genome-wide expression analysis has been rarely applied because of the lack of sequence information. We applied next-generation sequencing to generate, through de novo read assembly, a large catalogue of transcripts for Petunia axillaris and Petunia inflata. On the basis of the transcriptome of each species, comprehensive microarray chips for gene expression analysis were established and used for the analysis of global- and organ-specific gene expression in both species. In addition, microarray analysis was applied to explore the molecular basis of the seed coat defects in Petunia hybrida mutants, homozygous for a null allele of the AN11 gene, encoding a WDR transcription regulator. Among the transcripts differentially expressed in an11 seeds compared to wild type, many expected targets of AN11 were found but also several interesting new candidates that might play a role in morphogenesis of the seed coat. Our results validate the combination of next-generation sequencing with microarray analyses strategies to identify the transcriptome of two petunia species without previous knowledge of their genome, and to develop comprehensive chips as useful tools for the analysis of gene expression in P. axillaris, P. inflata and P. hybrida. The manuscript describes the creation by next generation sequencing of a large catalogue of the transcriptome of the two Petunia species, that are considered to represent the natural material from which the breeders selected their varieties. This submission represents the transcriptome component of study. The high throughput sequencing data were submitted to SRA (accession numbers: SRA027293, SRP004866.1, SRX036999.2, SRX036998.2).

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Revealing impaired pathways in regulatory mutant by high-throughput characterization of Petunia axillaris and Petunia inflata transcriptomes.

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Comprehensive transcriptional profiling analysis reveals candidate regulators in cold-stressed seedlings of Petunia hybrida

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Project description:To accurately detect and quantify low abundant transcripts no represented in current EST databases we generated an RNA-seq dataset based on RNA isolated from Petunia hybrida corolla tissue harvested at 8 PM at two developmental stages, day -1 (bud) and day 2 postanthesis (the tissues containing the lowest and highest levels of phenylalanine, respectively). Total RNA samples were obtained from corollas of at least eight wild-type petunia flowers per biological replicate at the two developmental stages using an RNeasy plant mini kit from Qiagen.

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