The following points highlight the five novel transgenic approaches for herbicide tolerance. The approaches are: 1. Glyphosate Resistance 2. Glyphosate Resistance by over expression of EPSPS Gene 3. Cytochrome p450 Mediated Tolerance 4. Engineering Herbicide Tolerance by p450 5. Overexpression of At PgP, or Apyrase. Approach # 1. Glyphosate Resistance: Majority of the weeds in the world can be destroyed [...]
In this article we will discuss about the artificial nematode resistance in transgenic plants. Artificial nematode resistance could be achieved by an alternative molecular strategy; an approach provides duration and efficient resistance. Deployment of antinematode gene in transgenic plant depending on specificity of nematode can provide artificial defence system. Some of the promising approaches are the deployment of compounds produced [...]
In this article we will discus about the models for post-transcriptional gene silencing (PTGS). Production of dsRNA from inverted transgene repeats and single copy transgene triggers PTGS. It was proposed that dsRNA would be act as template for an RNA-directed RNA polymerase. Atleast four models have been proposed to explain induction of PTGS. First model is known as threshold model [...]