title: Insect symbiont facilitates vector acquisition, retention, and transmission of plant virus.
abstract: Tomato yellow leaf curl virus (TYLCV) was first detected in China in 2006, following the introduction of Bemisia tabaci Q into China in 2003. Since then, the incidence of TYLCV in tomato fields in China has greatly increased as has the abundance and distribution of Q whiteflies containing the bacterial symbiont Hamiltonella with high frequency. This suggested that the symbiont Hamiltonella might associate with the transmission efficiency of TYLCV by the whitefly vector. Here we report the first evidence that the Hamiltonella is closely associated with the acquisition, retention, and transmission efficiency of TYLCV by the whitefly vector. Our findings combined with the outbreaks of TYLCV following the introduction of Q, provided an explanation for why Hamiltonella is being maintained at a relatively high level in Chinese B. tabaci Q and also have implications for disease and vector management.
authors: Department of Plant Protection, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, P R China.
authors: Qi
authors: Q
authors: Su
authors: Huipeng
authors: H
authors: Pan
authors: Baiming
authors: B
authors: Liu
authors: Dong
authors: D
authors: Chu
authors: Wen
authors: W
authors: Xie
authors: Qingjun
authors: Q
authors: Wu
authors: Shaoli
authors: S
authors: Wang
authors: Baoyun
authors: B
authors: Xu
authors: Youjun
authors: Y
authors: Zhang
mesh_terms: D000818:Animals; D053839:Begomovirus / Q000502:physiology*; D004279:DNA, Viral; D004755:Enterobacteriaceae / Q000502:physiology; D005260:Female; D006430:Hemiptera / Q000382:microbiology / Q000821:virology*; D018551:Solanum lycopersicum / Q000821:virology; D008297:Male; D010935:Plant Diseases / Q000821:virology; D013559:Symbiosis
chemical_list: D004279:DNA, Viral