GEO DataSets

(Submitter supplied) New shoot growth from underground adventitious buds of leafy spurge is critical for survival of this invasive perennial weed after episodes of severe abiotic stress. Because global climate change is expected to increase abiotic stress, such as dehydration, objectives of this study include examining the impact that dehydration stress has on molecular mechanisms associated with vegetative reproduction. more...

Organism:

Euphorbia esula; Manihot esculenta

Type:

Expression profiling by array

Platform:

GPL4655

32 Samples

Download data: GPR, TXT

(Submitter supplied) Leafy spurge is a model for studying well-defined phases of dormancy in underground adventitious buds (UABs) of herbaceous perennial weeds, which is a primary factor allowing many invasive perennial weeds to escape conventional control measures. A 12-week ramp down in both temperature (27°C → 10°C) and photoperiod (16 h → 8 h light) is required to induce a transition from para- to endo-dormancy in UABs of leafy spurge. more...

Organism:

Euphorbia esula; Manihot esculenta

Type:

Expression profiling by array

Platform:

GPL4655

84 Samples

Download data: GPR

(Submitter supplied) Persistence of the invasive perennial weed leafy spurge is mainly attributed to seasonal production of underground adventitious buds (UABs), which undergo well-defined phases of dormancy (para-, endo- and eco-dormancy). These well-defined phases of dormancy also allow UABs of leafy spurge to survive extreme seasonal variations, including dehydration-stress. Consequently, objectives of this study include understanding the effects of dehydration-stress on vegetative reproduction, flowering competence, and transcript profiles at different phases of bud dormancy. more...

Organism:

Euphorbia esula; Manihot esculenta

Type:

Expression profiling by array

Platform:

GPL4655

24 Samples

Download data: GPR

(Submitter supplied) Transcriptome changes were investigated for Euphorbia esula (leafy spurge) seeds with a focus on the effect of constant and diurnal fluctuating temperature on dormancy and germination. Leafy spurge seeds do not germinate when incubated for 21 days at 20°C constant temperatures, but nearly 30% germinate after 21 days under fluctuating temperatures 20:30°C (16:8 h). Incubation at 20°C for 21 followed by 20:30°C resulted in approximately 63% germination in about 10 days. more...

Organism:

Euphorbia esula; Manihot esculenta

Type:

Expression profiling by array

Platform:

GPL4655

41 Samples

Download data: GPR

(Submitter supplied) Leafy spurge (Euphorbia esula) is an herbaceous perennial weed that produces vegetatively from an abundance of underground adventitious buds. The objectives of this study were to determine how mimicking natural seasonal conditions (photoperiod and temperature) under controlled environmental conditions affect dormancy and flowering competence; to determine molecular mechanisms associated with well-defined phases of seasonal dormancy transitions based on transcript profiles obtained by microarray analysis; and to link mechanisms regulating induction and release of endodormancy and flowering competence. more...

Organism:

Euphorbia esula; Manihot esculenta

Type:

Expression profiling by array

Platform:

GPL4655

32 Samples

Download data: GPR

(Submitter supplied) The goal of this study was to identify signaling processes associated with infection and recovery of leafy spurge inoculated with Xanthomonas axonopodis pv. manihotis (Xam).

Organism:

Manihot esculenta; Euphorbia esula

Type:

Expression profiling by array

Platform:

GPL4655

36 Samples

Download data

(Submitter supplied) This study investigated changes in the transcriptome of outdoor grown leafy spurge crown buds as they progress from paradormancy in August and September into endo dormancy in October through to ecodormancy in November and December. Keywords: Dormancy leafy spurge adventitious-buds

Organism:

Manihot esculenta; Euphorbia esula

Type:

Expression profiling by array

Platform:

GPL4655

24 Samples

Download data

(Submitter supplied) These experiments were designed to determine the usefulness of the spurge/cassava euphorbiaceae arrays for investigating gene expression in other euphorbs. Keywords: heterologous hybridization euphorbia

Organism:

Manihot esculenta; Ricinus communis; Euphorbia esula; Euphorbia pulcherrima

Type:

Expression profiling by array

Platform:

GPL4655

4 Samples

Download data