Testing the chilling- before drought-tolerance hypothesis in Pooideae grasses

This study suggest that Pooideae increased cold tolerance early in their evolution, potentially facilitating faster or more numerous innovations in drought tolerance as species from different tribes expanded into more open and arid habitats. Since then, fine-tuning of both cold and drought tolerance traits has continued, but whether the same traits are targets of selection across taxa is unclear. Identification of Pooideae-wide DEGs shared for cold and drought provides a framework for targeted breeding to multiple stresses.