Fig. 2
From: Detection and epidemic dynamic of ToCV and CCYV with Bemisia tabaci and weed in Hainan of China
Whitefly biotype detection. CK1 positive control; CK2 negative control; CK3 black control. a Whitefly biotype on infected tomato plants. b Whitefly biotype on infected cucumber plants. The size of 122Â bp and 498Â bp fragment based on amplification of mtCOI and restriction endonuclease was used to detect the biotype. Results of 20 samples were shown in figure a and b