Project description:The tomato SlWRKY3 transcription factor was overexpressed in cultivated tomato (Solanum lycopersicum)and transgenic plants transcriptome was compared to that of wild-type plants.
Project description:The goal of this study was to perform RNA-seq expression analysis on Solanum lycopersicum cv. M82 X S. pennellii introgression lines, deriving expression Quantitative Trait Loci which were analyzed together with pre-existing genomic and phenotypic data to define genes and regulatory pathways controlling tomato root development and observed natural variation. We completed the RNAseq expression profiling analysis and developed a tool to display this information graphically in collaboration with Nicholas Provart at the University of Toronto: http://bar.utoronto.ca/efp_tomato/cgi-bin/efpWeb.cgi?dataSource=ILs_Root_Tip_Brady_Lab To identify candidate genes and pathways we focussed on one root growth trait, root growth angle, and identified two statistically significant genomic regions within tomato root growth angle QTL containing two candidate genes that likely control the gravitropic setpoint angle (CDC73 and PAP27), both of which are conserved between Arabidopsis and tomato, and which we tested using transgenic lines of the Arabidopsis orthologs. A possible regulatory role for suberin in root growth angle control was also identified.
Project description:The tomato SlWRKY3 transcription factor was overexpressed in cultivated tomato (Solanum lycopersicum)and transgenic plants transcriptome was compared to that of wild-type plants. At least 4 plants were collected for RNA extraction. The aim of the experiment was to compare transcriptomes of 35::SlWRKY3 plants and wild-type plants grown together and on MS (Murashige and Skoog) medium in vitro for 4 weeks. A technical replicate (dye swap) was conducted.
Project description:Solanum lycopersicoides (LA2408), collected at higher altitudes (up to 3600 meters) than any of other solanum species, is a wild nightshade distant-allied to cultivated tomato. Many traits of Solanum lycopersicoides including cold tolerance, resistance to virus diseases and insect pests were previously confirmed. Thus, it is an ideal candidate plant for isolating cold-tolerance-related genes. In this study, we successfully cloned the full-length cDNA of the CBF1 gene from Solanum lycopersicoides which was designated as SsCBF1. In order to investigate the possible functions of SsCBF1 in plant growth and stress responses, we generated transgenic Arabidopsis overexpressing SsCBF1. We employed the RNA-seq approach to identify the differentially expressed genes between the two genotypes. Processing of RNA samples on the Illumina HiSeq 2000 system produced more than 20 million reads, each 100bp in length, encompassing 2.0 Gb of sequence data for each sample which was then mapped to the reference genome. The statistical analysis identified a total of 338 differentially expressed genes between Col-0 (WT) and transgenic Arabidopsis overexpressing SsCBF1 with the criteria of Q-value < 0.001 and fold change >2, among which 120 (35.5%) were up-regulated and 218 (64.5%) were down-regulated.
Project description:Lines nearly isogenic for fw3.2 in the cultivated background Solanum lycopersicum c.v. Yellow Stuffer were grown in the greenhouse in a completely randomized design. fw3.2 (ys) and fw3.2 (wt) are NILs carrying cultivated and wild alleles for fw3.2 locus. Young flower buds were harvested. For each sample, three replicates were used. RNA was extracted using Trizol and Stand-specific libraries were prepared from total RNA and sequences of 51 bp were generated on an Illumina HiSeq2000.
Project description:Lines nearly isogenic for fw3.2 in the cultivated background Solanum lycopersicum c.v. Yellow Stuffer were grown in the greenhouse in a completely randomized design. fw3.2(ys) and fw3.2(wt) are NILs carrying cultivated and wild alleles for fw3.2 locus. Flowers were tagged a day before anthesis and self-pollinated at anthesis. Fruits at stage five, seven, and ten days post anthesis (dpa) were harvested. Pericarp and seed tissues were separately isolated. Four replicates were collected for each sample. RNA was extracted using Trizol and Stand-specific libraries were prepared from total RNA and sequences of 51 bp were generated on an Illumina HiSeq2000.
Project description:RNA sequencing in tomato for detect mRNA expression of Solanum lycopersicum Axillary bud.The two cultivars (monomaker, raceme) at Axillary bud for transcriptome sequencing
Project description:RNA sequencing in tomato for detect mRNA expression of Solanum lycopersicum flower.The two cultivars (monomaker, raceme) had three different flowering stages (budlet, Flower bud, Full bloom) for transcriptome sequencing
Project description:Solanum lycopersicoides (LA2408), collected at higher altitudes (up to 3600 meters) than any of other solanum species, is a wild nightshade distant-allied to cultivated tomato. Many traits of Solanum lycopersicoides including cold tolerance, resistance to virus diseases and insect pests were previously confirmed. Thus, it is an ideal candidate plant for isolating cold-tolerance-related genes. In this study, we successfully cloned the full-length cDNA of the CBF1 gene from Solanum lycopersicoides which was designated as SsCBF1. In order to investigate the possible functions of SsCBF1 in plant growth and stress responses, we generated transgenic Arabidopsis overexpressing SsCBF1. We employed the RNA-seq approach to identify the differentially expressed genes between the two genotypes. Processing of RNA samples on the Illumina HiSeq 2000 system produced more than 20 million reads, each 100bp in length, encompassing 2.0 Gb of sequence data for each sample which was then mapped to the reference genome. The statistical analysis identified a total of 338 differentially expressed genes between Col-0 (WT) and transgenic Arabidopsis overexpressing SsCBF1 with the criteria of Q-value < 0.001 and fold change >2, among which 120 (35.5%) were up-regulated and 218 (64.5%) were down-regulated. RNA-sequencing was carried out using one transgenic line (35S:SsCBF1-11) and the Col-0 (WT) plants. Total RNA was isolated with Trizol reagent (Invitrogen, USA) from the aerial parts of 4-week-old seedlings grown in parallel under unstressed conditions. Materials from 20 plants of each genotype were pooled for RNA isolation.