In tobacco plants, a nematode Meloidegyne incognitia infects the roots of tobacco plants and causes a great reduction in yield. To prevent this nematode infection a new method was introduced called as RNA inter ference (silencing of specific (RNA). Briefly explain this method done in tobacco plants using Agrobacterium vectors.

Explanation

The nematode specific genes were introduced into the host plant using Agrobacterium vectors. The introduction of DNA was such that it produced both sense and anti-sense RNA in the host cells. These two RNA.s together form double stranded RNA that initiated RNAi (RNA interference) which silenced the specific mRNA of the nematode. Thus parasite could not survive in the host.