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ABSTRACT: Transcriptome sequence of populus tomentosa

PROVIDER: PRJNA1252924 | ENA |

REPOSITORIES: ENA

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Dataset's files

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			Action	DRS
	SRR33221933_1.fastq.gz	Fastqsanger.gz
	SRR33221933_2.fastq.gz	Fastqsanger.gz
	SRR33221934_1.fastq.gz	Fastqsanger.gz
	SRR33221934_2.fastq.gz	Fastqsanger.gz
	SRR33221935_1.fastq.gz	Fastqsanger.gz

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Transcriptomic and metabolomic analysis of the heat-stress response of Populus tomentosa

Project description:We sequenced mRNA from the control and heat treatments leaves of Populus tomentosa using the Illumina HiSeq4000 platform to generate the transcriptome dynamics that may serve as a gene expression profile blueprint for different response patterns under control and heat stress in Populus tomentosa.

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Expression data from two year old shoot apex and mature xylem of Populus tomentosa

Project description:We take the two year old plant for sampling.Use the Affymetrix poplar gene chip to elucidate the gene functions and mechanisms in Populus tomentosa shoot apex and mature xylem. We used microarrays to detail the global programme of gene expression in shoot apex and mature xylem. Populus tomentosa shoot apex and mature xylem were taken for RNA extraction and hybridization on Affymetrix microarrays.CB2009304-C and CB2009304-D from shoot apex, CB2009304-G and CB2009304-H from mature xylem.

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Project description:We take the two year old plant for sampling. Use the Affymetrix poplar gene chip to elucidate the gene functions and mechanisms in Populus tomentosa newly formed developing xylem and lignified xylem. We used microarrays to detail the global programme of gene expression in newly formed developing xylem and lignified xylem. Populus tomentosa newly formed developing xylem and lignified xylem were taken for RNA extraction and hybridization on Affymetrix microarrays. CB2009304-A and CB2009304-B from newly formed developing xylem, CB2009304-G and CB2009304-H from lignified xylem.

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Populus tomentosa cultivar:Populus tomentosa

Project description:Populus tomentosa cultivar:Populus tomentosa Raw sequence reads

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Transcriptome analysis reveals new insight into iron homeostasis in Populus tomentosa

Project description:Iron (Fe) is an essential micronutrient for the survival and proliferation of plants. Plants have evolved complex mechanisms to maintain Fe homeostasis in response of Fe deficiency conditions. To explore the mechanisms of Populus tomentosa response to Fe deficiency, we evaluated the physiological, biochemical and transcriptome differences of P. tomentosa between Fe-sufficient and Fe-deficient conditions. The results showed that, under Fe-free conditions, the chlorophyll synthesis and photosynthesis pathways in shoots were extremely depressed. The inhibition of these pathways caused chlorosis and reduced shoot growth. Meanwhile, although both two photosynthetic systems (PSI and PSII) were inhibited under Fe limited conditions, PSI is affected more serious and earlier than PSII. In order to maintain Fe homeostasis, several genes involved in Fe regulation network were differentially expressed. At the late period of Fe deficiency response, some genes (BTS, bHLH38/39 and PYE) in PYE regulatory network were up-regulated in roots, while some root-specific ethylene-dependent FIT regulatory genes (EIN3, ERF and FIT) were down-regulated. Moreover, FRO2 was induced in P. tomentosa roots to reduce more Fe3+, which is similar with other strategy I plants. It is interest that we found another Fe2+ transporter gene (NRAMP1) was induced, instead of the well-known Fe2+ transporter gene (IRT1) for strategy I plants, to promote Fe2+ absorption at the Fe deficiency late stage.

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Project description:Secondary vascular system (SVS) development resulted from cambial growth is a currently not well understood process. Therefore, more studies are needed to shed more lights on the molecular mechanisms underpinning the cambial activity. The regeneration of SVS from debarked trunk that can mimic the vascular cambium-driven wood formation has developed and could be used to revealed a larger number of differentially expressed genes during the stages of cambium formation and xylem differentiation in Populus tomentosa. We used microarrays to detail the global programme of gene expression in 6 time points during the regeneration of SVS.

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