Better together: Subgenomes for allotetraploid potato wild relative Solanum acaule Bitt. reveal origins in Petota Clade 3 and 4.

Potato wild relatives (Solanum section Petota) are a source of genetic diversity for climate-smart improvement of modern cultivars (Solanum tuberosum). The allotetraploid Solanum acaule Bitter. has been previously used to introgress frost tolerance into potato cultivars such as Yukon Gold and Viking.

The phased Solanum okadae genome and Petota pangenome analysis of 23 other potato wild relatives and hybrids.

Potato is an important crop in the genus Solanum section Petota. Potatoes are susceptible to multiple abiotic and biotic stresses and have undergone constant improvement through breeding programs worldwide. Introgression of wild relatives from section Petota with potato is used as a strategy to enhance the diversity of potato germplasm.

Potato Response to Drought Stress: Physiological and Growth Basis.

Drought poses a major challenge to the production of potatoes worldwide. Climate change is predicted to further aggravate this challenge by intensifying potato crop exposure to increased drought severity and frequency. There is an ongoing effort to adapt our production systems of potatoes through the development of drought-tolerant cultivars that are appropriately engineered for the changing environment.

Drought-Induced Regulatory Cascades and Their Effects on the Nutritional Quality of Developing Potato Tubers.

Competition for scarce water resources and the continued effects of global warming exacerbate current constraints on potato crop production. While plants' response to drought in above-ground tissues has been well documented, the regulatory cascades and subsequent nutritive changes in developing tubers have been largely unexplored. Using the commercial Canadian cultivar "Vigor", plants were subjected to a gradual drought treatment under high tunnels causing a 4 °C increase in the canopy temperature.

Tuber transcriptome profiling of eight potato cultivars with different cold-induced sweetening responses to cold storage.

Tubers are vegetative reproduction organs formed from underground extensions of the plant stem. Potato tubers are harvested and stored for months. Storage under cold temperatures of 2-4 °C is advantageous for supressing sprouting and diseases.