ABSTRACT
In evolutionary biology, recognizing the processes that establish the evolution of pathogens is an important part with outcomes viral disease for the management. The genetic exchange viz., recombination, and re-assortment of genomic segments and mutation are the ways that incite evolution. However, the genetic construct of the virus population will depend upon evolutionary stress as selection and unintended genetic drift. By virtue of Coexistence, virus and vector population achieves greater survival and dispersal ability. This depends upon the condition in which their genetic and physiological construct from a well-suited vector–virus association. As a result, coevolution between insect-vector and viruses must significantly affect the variability, epidemics, and even emergence of new viruses. Begomoviruses have emerged worldwide during the last two decades, as a consequence of the insect vector B. tabaci spread, causing infection to a wide-ranging plant species, among some of the agriculturally important crops.
