Project description:For expression profiling analyses of early stages of tuber induction, plants of Solanum tuberosum ssp andigena (7540) were used. This wild subspecies is strictly dependent on photoperiod for tuberisation, such that short days (SD) inductive conditions are required in order to trigger tuber induction in the stolons. Andigena plants were grown in the greenhouse under LD non-inductive conditions until a 10-leaf stage. They were subsequently transferred to inductive SD conditions (8 h light/16 h dark), and sampled at 0, 2, 4, 6 and 8 days after transfer to SDs. Tuber swelling was visible approximately 6-8 days after transfer to inductive conditions. The apical region of the stolons (2 cm) was collected one hour before the beginning of the light period.
Project description:Potato wild relatives (Solanum section Petota) are a source of genetic diversity for improving traits in modern cultivars (S. tuberosum) to meet climate challenges. Potatoes are susceptible to multiple abiotic and biotic stresses and have undergone constant improvement through breeding programs worldwide. The allotetraploid S. acaule Bitter has been used to introgress cold tolerance into potato breeding germplasm. The cold challenged transcriptome of S. acaule was compared with that of autotetraploid S. tuberosum cv. Atlantic, and was found to have fewer differentially expressed genes than the latter. Specifically, subgenome 1 has less downregulated alleles compared to subgenome 2 and S. tuberosum.
Project description:For expression profiling analyses of early stages of tuber induction, plants of Solanum tuberosum ssp andigena (7540) were used. This wild subspecies is strictly dependent on photoperiod for tuberisation, such that short days (SD) inductive conditions are required in order to trigger tuber induction in the stolons. Andigena plants were grown in the greenhouse under LD non-inductive conditions until a 10-leaf stage. They were subsequently transferred to inductive SD conditions (8 h light/16 h dark), and sampled at 0, 2, 4, 6 and 8 days after transfer to SDs. Tuber swelling was visible approximately 6-8 days after transfer to inductive conditions. The apical region of the stolons (2 cm) was collected one hour before the beginning of the light period. All collected stolons (LD; and 2d, 4d, 6d and 8d under SD) were processed as described. Hybridization scheme with a loop design was applied to compare one sample against the rest of the samples in the induction time course.
Project description:The intent was to study, from transcriptome analysis, shade and drought responses in Solanum tuberosum (potato). We performed Illumina 50 bp single-end RNA-seq in tissues of control and treated var. Spunta wild-type plants. Drought experiments also included two independent AtBBX21-overexpressing (BBX21-OE) potato lines.
