Expression profiles of 11 candidate genes involved in drought tolerance of pedunculate oak (<i>Quercus robur</i> L.). Possibilities for genetic monitoring of the species.

Abstract Pedunculate oak ( Quercus robur L.) is one of the most significant broadleaved tree species in Europe. However, various abiotic and biotic agents have influenced pedunculate forests, among which drought stress has been frequently described as main driver this forests decline. In study we assessed relative expression profile 11 candidate genes involved many different metabolic pathways potentially responsible for tolerance. The obtained results succeed partially tackling tolerance mechanisms targeted natural pedunculated population. This gene pool may represent a base adaptation therefore genetic diversity should be conserved. paper responses four ecological groups, characterized by physiological status (senescent vs vital) flowering period (early (var. praecox ) late tardissima )). differences levels are shown between (8 upregulated) (3 upregulated)), more than (sene-scent vital). Only three wrky 53, rd 22 sag 21 showed upregulated pattern senescent indicating their possible role coping stressed environment. Results interesting connections values identified drought-tolerance related with provide further recommendations adequate conservation monitoring important its southeast refugium.