COMPOSITIONS AND METHODS FOR MODIFYING THE EXPRESSION OF GENES OF INTEREST

摘要

The present invention relates to a specific promoter sequence for the expression of genes of interest in fruit endosperm. The invention also describes DNA constructs that contain the promoter, as well as the method that uses these constructs to produce plants, plant cells or transgenic protoplasts. The expression of the transgene exclusively in the organ of interest allows the exogenous transcript to accumulate only in the fruit and is advantageous over constitutive expression, since it makes it easier to implement strategies that aim at obtaining cultivars with higher added value, such as: adaptation to environmental stresses, resistance to pathogens, pests and agrochemicals, increase in nutritional and therapeutic value, and a new alternative for expression systems in plant organisms to generate more competitive cultivars at lower costs. Moreover, the present invention also describes a sequence with constitutive expression, which offers an alternative for implementing expression systems when constitutive expression is required. The objective of the invention is to increase the economic, social and environmental benefits, as well as the biosafety of genetic engineering.