Cisgenesis and intragenesis: new tools for improving crops

Area of Science:

• Plant Biotechnology
• Agricultural Science
• Molecular Biology

Background:

• Genetically Modified Organisms (GMOs) face safety and environmental concerns due to foreign DNA.
• Cisgenesis and intragenesis are emerging alternatives for crop modification.
• Limited knowledge of regulatory sequences hinders the application of these new technologies.

Purpose of the Study:

• To review alternatives to plant transgenesis, focusing on cisgenesis and intragenesis.
• To explore applications in economically important crops, using grapevine as a model.
• To identify and characterize grapevine regulatory sequences for genetic manipulation.

Main Methods:

• Review of current literature on plant genetic modification alternatives.
• Analysis of grapevine genomic data to identify regulatory elements.
• Functional analysis of identified promoters using reporter genes in grapevine.

Main Results:

• Identification of grapevine promoters with diverse expression patterns (tissue-specific, stress-inducible, constitutive).
• Characterization of gene expression under various conditions, including ripening and biotic stress.
• Confirmation of promoter transcription activity through reporter gene assays.

Conclusions:

• Cisgenesis and intragenesis hold promise as safer alternatives to conventional GMOs.
• The identification of grapevine promoters opens avenues for developing cisgenic and intragenic grapevines.
• Further research on regulatory sequences is crucial for broader application in crop improvement.