Project description:The transcriptome of needles from plants propagated by cuttings and cultured in the same conditions at SERIDA’s greenhouse at Villaviciosa (Asturias, Spain) were analyzed. The cuttings are from two different provenances of Pinus pinaster; Leiria (Portugal) and Tamrabta (Morocco). Their transcriptomes were analyzed using high throughput sequencing
Project description:The transcriptome of needles from plants propagated by cuttings and cultured in the same condictions at SERIDAâs greenhouse at Villaviciosa (Asturias, Spain) were analyzed. The cuttings are from two different provenances of Pinus pinaster; Leiria (Portugal) and Tamrabta (Morocco). Their transcriptomes were analyzed using one color microarrays.
Project description:The transcriptome of needles from plants propagated by cuttings and cultured in the same conditions at SERIDAâ??s greenhouse at Villaviciosa (Asturias, Spain) were analyzed. The cuttings are from two different provenances of Pinus pinaster; Leiria (Portugal) and Tamrabta (Morocco). Their transcriptomes were analyzed using high throughput sequencing 4 samples
Project description:The significant morphological differences observed during embryo development in angiosperms and gymnosperms are expected to be the result of a differential control of gene expression. We used a loblolly pine (Pinus taeda) cDNA microarray to analyze global transcriptional changes along zygotic embryogenesis in maritime pine (Pinus pinaster). A time-course analysis of the data obtained from the five embryo developmental groups used in this study led to the identification of 4,645 genes whose expression varied along P. pinaster embryogenesis. These transcripts were clustered into six distinct expression profiles. The grouping of these profiles in early, mid-embryogenesis and embryo maturation, according to the developmental period where most of the sequences were up-regulated, evidenced that characteristic transcriptional changes are associated to each developmental period. The application of a cut-off value of 1.95-fold change led to the identification of 1,838 differentially expressed transcripts that were categorized by biological process. Metabolism, interaction with the environment, oxidation-reduction and transport were some of the most represented categories. During early embryogenesis genes putatively involved in phytohormone-mediated signaling were identified, whereas in middle stages the overrepresented genes could be associated with cotyledon formation and induction of somatic embryogenesis. Genes associated with the synthesis of storage products were up-regulated in the latest stages of pine embryo development. It was also during this developmental period that the largest number of sequences putatively encoding transcription factors was identified.
Project description:The transcriptome of needles from plants propagated by cuttings and cultured in the same condictions at SERIDA’s greenhouse at Villaviciosa (Asturias, Spain) were analyzed.
