The cosmopolitan whitefly species, Bemisia tabaci has always been regarded as pests to a large range of worldwide crops. They are capable of transmitting plant viruses of different groups. Well-studied B. tabaci populations that have been differentiated are referred to as races or biotypes. Some of the commonly reported biotypes are B, Q, M, B2, L, H, A, C, N, K, R, P, E, S, J and AN. An analysis of genetic diversity of whitefly across Pakistan was conducted. It was based upon phylogenetic analysis of DNA sequence of mitochondrial gene Cytochrom Oxidase I. All sequences of mtCOI genes of...