摘要：In the scenario of unexpected climate patterns food security has become the highest priority around the globe. The decline in freshwater resources is of major concern for achieving stable agricultural productivity. Demand for vegetable oils is increasing globally but existential drought is responsible for the under production of important oilseed crops. In rape- seed and mustard, drought stimulates plants to down regulate or even stop normal metabolic pathways and activate the synthesis of stress responsive metabolites. These metabolites result in hormonal imbalance, disruption to tissues, reduction in oil contents and morphological changes in overall plant phenotype. Ultimately, optimal production of yield and biomass is compromised to ensure survival. To develop tolerance in existing genotypes of Brassica conventional breeding have provided promising outcomes, but further input from molecular breeding approaches offers rapid, targeted selection for favourable genotypes and thus an increased speed of variety development. Unprecedented advances in biotechnology have assisted the exploitation of drought stimulated mechanisms and engineering of the respective pathways to incorporate drought tolerance in innumerable Brassica species. This paper reviews the current and novel application of molecular breeding and biotechnology for producing drought tolerance in Brassica species with a major focus on ubiq- uitination and sumoylation regulatory pathways.
