Functional analysis of the ver gene using antisense transgenic wheat

Area of Science:

• Plant Molecular Biology
• Agricultural Science
• Genetics

Background:

• Vernalization is a critical process for winter wheat flowering.
• The ver203 gene is known to be involved in vernalization response in winter wheat.
• Understanding gene function is key to improving crop development.

Purpose of the Study:

• To investigate the function of the ver203 gene in winter wheat.
• To determine the role of VER203 protein in controlling heading and flower development.
• To utilize antisense RNA technology for gene function analysis.

Main Methods:

• Construction of a verc203:gus fusion-expression plasmid (pBI221).
• Introduction of the construct into winter wheat via the pollen-tube pathway.
• Analysis of transgenic plants using DNA hybridization, PCR, Northern blot, and GUS activity assays.

Main Results:

• Heading was significantly inhibited in antisense transgenic winter wheat plants.
• Successful integration and expression of the verc203:gus construct were confirmed.
• Positive results from multiple molecular analyses indicated gene silencing.

Conclusions:

• The VER203 protein plays a significant role in regulating heading and flower development in winter wheat.
• Antisense RNA technology effectively demonstrated the function of the ver203 gene.
• This research provides insights into vernalization mechanisms and potential targets for crop improvement.