Jun 4, 2019 · With the basic but indispensable procedures and protocols for cultivation, vegetative and sexual propagation, hairy root transformation of and nucleic acid isolation from Dryas spp. described in this study, Dryas emerges as a new model genus to study important traits associated with survival in arctic and alpine conditions, including the ...

Dryas is a genus of perennial cushion -forming evergreen dwarf shrubs in the family Rosaceae, native to the arctic and alpine regions of Europe, Asia and North America. The genus is named after the dryads, the tree nymphs of ancient Greek mythology.

This thesis contributes to establish Dryas spp. in a laboratory context and also describes for the first time an unexpected rare case of AM-symbiosis polymorphic trait within the same plant genus.

Mountain Avens (Dryas spp. Rosaceae) is a circumpolar genus of about fifteen species of wind-dispersed, self-incompatible dwarf shrubs that are distributed throughout the Arctic and Alpine regions of the northern hemisphere (Springer and Parfitt 2015; http://www.itis.gov).

Interestingly, among the Rosaceae, nitrogen-fixing nodulating species are found only in the subfamily Dryadoideae, while the genus Dryas includes closely related nodulating species (Dryas ...

Species of Dryas are among the important components of arctic and alpine tundra in terms of biomass (I. Skrede et al. 2006) and cover. Dryas has been placed in Dryadeae, which comprises four (Frankia association) actinorhizal genera, also including Cercocarpus, Chamaebatia, and Purshia (D. Potter et al. 2007).

Morphology and geographic variation of pollen grains of three genera of the Rosaceae (Dryas, Fragaria, Holodiscus) of western Canada were studied using the light microscope and scanning electron microscope.

Jun 4, 2019 · The ability to clone Dryas spp. genes combined with the capacity to introduce chimeric constructs into root systems opens the possibility to study Dryas genetics in depth, allowing cross-species complementation, as well as transient expression, protein localization, and reverse genetics using CRISPR/Cas or RNAi methods.

Nov 7, 2022 · Mountain Avens (Dryas spp. Rosaceae) is a circumpolar genus of about fifteen species of wind-dispersed, self-incompatible dwarf shrubs that are distributed throughout the Arctic and Alpine regions of the northern hemisphere (Springer and Parfitt 2015; http://www.itis.gov).

The genus Dryas is unique in that it contains closely related nodulating and non-nodulating species which makes it an ideal model to study the evolution of root symbioses.