Evolutionary Origins of Drought Tolerance in Spermatophytes

It is commonly known that drought stress a major constraint limiting crop production. Drought and associated tolerance mechanisms are therefore under intense investigation with the view to future production of tolerant crops. With an ever-growing population variable climate, novel approaches need be considered sustainably feed generations. In this context, definitions highly variable, which poses challenge for systematic assessment trait across plant kingdom. Furthermore, polygenic understanding evolution complex may inform us about patterns gene gain loss in relation diverse adaptations. We look at transition plants from water land, role enabling transition, before discussing first common responses amongst vascular plants. reviewed distribution combined “drought tolerance” very broad terms encompass different experimental systems used current literature assigned binary “tolerance vs. sensitivity” 178 extant species. By simplifying into “binary” we were able explore wider kingdom, compared previous studies. show how tolerance/sensitivity” has evolved discuss incorporating information evolutionary genomics framework could provide insights molecular underlying extreme